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DRAFT STANDARD
Errata Exist
Network Working Group                                         R. Thurlow
Request for Comments: 5531                              Sun Microsystems
Obsoletes: 1831                                                 May 2009
Category: Standards Track


      RPC: Remote Procedure Call Protocol Specification Version 2

Status of This Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (c) 2009 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents in effect on the date of
   publication of this document (http://trustee.ietf.org/license-info).
   Please review these documents carefully, as they describe your rights
   and restrictions with respect to this document.

Abstract

   This document describes the Open Network Computing (ONC) Remote
   Procedure Call (RPC) version 2 protocol as it is currently deployed
   and accepted.  This document obsoletes RFC 1831.



















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Table of Contents

   1. Introduction ....................................................3
      1.1. Requirements Language ......................................3
   2. Changes since RFC 1831 ..........................................3
   3. Terminology .....................................................3
   4. The RPC Model ...................................................4
   5. Transports and Semantics ........................................5
   6. Binding and Rendezvous Independence .............................7
   7. Authentication ..................................................7
   8. RPC Protocol Requirements .......................................7
      8.1. RPC Programs and Procedures ................................8
      8.2. Authentication, Integrity, and Privacy .....................9
      8.3. Program Number Assignment .................................10
      8.4. Other Uses of the RPC Protocol ............................10
           8.4.1. Batching ...........................................10
           8.4.2. Broadcast Remote Procedure Calls ...................11
   9. The RPC Message Protocol .......................................11
   10. Authentication Protocols ......................................15
      10.1. Null Authentication ......................................15
   11. Record Marking Standard .......................................16
   12. The RPC Language ..............................................16
      12.1. An Example Service Described in the RPC Language .........17
      12.2. The RPC Language Specification ...........................18
      12.3. Syntax Notes .............................................18
   13. IANA Considerations ...........................................19
      13.1. Numbering Requests to IANA ...............................19
      13.2. Protecting Past Assignments ..............................19
      13.3. RPC Number Assignment ....................................19
           13.3.1. To be assigned by IANA ............................20
           13.3.2. Defined by Local Administrator ....................20
           13.3.3. Transient Block ...................................20
           13.3.4. Reserved Block ....................................21
           13.3.5. RPC Number Sub-Blocks .............................21
      13.4. RPC Authentication Flavor Number Assignment ..............22
           13.4.1. Assignment Policy .................................22
           13.4.2. Auth Flavors vs. Pseudo-Flavors ...................23
      13.5. Authentication Status Number Assignment ..................23
           13.5.1. Assignment Policy .................................23
   14. Security Considerations .......................................24
   Appendix A: System Authentication .................................25
   Appendix B: Requesting RPC-Related Numbers from IANA  .............26
   Appendix C: Current Number Assignments  ...........................27
   Normative References  .............................................62
   Informative References  ...........................................62






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1.  Introduction

   This document specifies version 2 of the message protocol used in ONC
   Remote Procedure Call (RPC).  The message protocol is specified with
   the eXternal Data Representation (XDR) language [RFC4506].  This
   document assumes that the reader is familiar with XDR.  It does not
   attempt to justify remote procedure call systems or describe their
   use.  The paper by Birrell and Nelson [XRPC] is recommended as an
   excellent background for the remote procedure call concept.

1.1.  Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].

2.  Changes since RFC 1831

   This document obsoletes [RFC1831] as the authoritative document
   describing RPC, without introducing any over-the-wire protocol
   changes.  The main changes from RFC 1831 are:

   o  Addition of an Appendix that describes how an implementor can
      request new RPC program numbers, authentication flavor numbers,
      and authentication status numbers from IANA, rather than from Sun
      Microsystems

   o  Addition of an "IANA Considerations" section that describes past
      number assignment policy and how IANA is intended to assign them
      in the future

   o  Clarification of the RPC Language Specification to match current
      usage

   o  Enhancement of the "Security Considerations" section to reflect
      experience with strong security flavors

   o  Specification of new authentication errors that are in common use
      in modern RPC implementations

   o  Updates for the latest IETF intellectual property statements

3.  Terminology

   This document discusses clients, calls, servers, replies, services,
   programs, procedures, and versions.  Each remote procedure call has
   two sides: an active client side that makes the call to a server
   side, which sends back a reply.  A network service is a collection of



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   one or more remote programs.  A remote program implements one or more
   remote procedures; the procedures, their parameters, and results are
   documented in the specific program's protocol specification.  A
   server may support more than one version of a remote program in order
   to be compatible with changing protocols.

   For example, a network file service may be composed of two programs.
   One program may deal with high-level applications such as file system
   access control and locking.  The other may deal with low-level file
   input and output and have procedures like "read" and "write".  A
   client of the network file service would call the procedures
   associated with the two programs of the service on behalf of the
   client.

   The terms "client" and "server" only apply to a particular
   transaction; a particular hardware entity (host) or software entity
   (process or program) could operate in both roles at different times.
   For example, a program that supplies remote execution service could
   also be a client of a network file service.

4.  The RPC Model

   The ONC RPC protocol is based on the remote procedure call model,
   which is similar to the local procedure call model.  In the local
   case, the caller places arguments to a procedure in some well-
   specified location (such as a register window).  It then transfers
   control to the procedure, and eventually regains control.  At that
   point, the results of the procedure are extracted from the well-
   specified location, and the caller continues execution.

   The remote procedure call model is similar.  One thread of control
   logically winds through two processes: the caller's process and a
   server's process.  The caller first sends a call message to the
   server process and waits (blocks) for a reply message.  The call
   message includes the procedure's parameters, and the reply message
   includes the procedure's results.  Once the reply message is
   received, the results of the procedure are extracted, and the
   caller's execution is resumed.

   On the server side, a process is dormant awaiting the arrival of a
   call message.  When one arrives, the server process extracts the
   procedure's parameters, computes the results, sends a reply message,
   and then awaits the next call message.

   In this model, only one of the two processes is active at any given
   time.  However, this model is only given as an example.  The ONC RPC
   protocol makes no restrictions on the concurrency model implemented,
   and others are possible.  For example, an implementation may choose



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   to have RPC calls be asynchronous so that the client may do useful
   work while waiting for the reply from the server.  Another
   possibility is to have the server create a separate task to process
   an incoming call so that the original server can be free to receive
   other requests.

   There are a few important ways in which remote procedure calls differ
   from local procedure calls.

   o  Error handling: failures of the remote server or network must be
      handled when using remote procedure calls.

   o  Global variables and side effects: since the server does not have
      access to the client's address space, hidden arguments cannot be
      passed as global variables or returned as side effects.

   o  Performance:  remote procedures usually operate at one or more
      orders of magnitude slower than local procedure calls.

   o  Authentication: since remote procedure calls can be transported
      over unsecured networks, authentication may be necessary.
      Authentication prevents one entity from masquerading as some other
      entity.

   The conclusion is that even though there are tools to automatically
   generate client and server libraries for a given service, protocols
   must still be designed carefully.

5.  Transports and Semantics

   The RPC protocol can be implemented on several different transport
   protocols.  The scope of the definition of the RPC protocol excludes
   how a message is passed from one process to another, and includes
   only the specification and interpretation of messages.  However, the
   application may wish to obtain information about (and perhaps control
   over) the transport layer through an interface not specified in this
   document.  For example, the transport protocol may impose a
   restriction on the maximum size of RPC messages, or it may be
   stream-oriented like TCP [RFC0793] with no size limit.  The client
   and server must agree on their transport protocol choices.

   It is important to point out that RPC does not try to implement any
   kind of reliability and that the application may need to be aware of
   the type of transport protocol underneath RPC.  If it knows it is
   running on top of a reliable transport such as TCP, then most of the
   work is already done for it.  On the other hand, if it is running on





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   top of an unreliable transport such as UDP [RFC0768], it must
   implement its own time-out, retransmission, and duplicate detection
   policies as the RPC protocol does not provide these services.

   Because of transport independence, the RPC protocol does not attach
   specific semantics to the remote procedures or their execution
   requirements.  Semantics can be inferred from (but should be
   explicitly specified by) the underlying transport protocol.  For
   example, consider RPC running on top of an unreliable transport such
   as UDP.  If an application retransmits RPC call messages after time-
   outs, and does not receive a reply, it cannot infer anything about
   the number of times the procedure was executed.  If it does receive a
   reply, then it can infer that the procedure was executed at least
   once.

   A server may wish to remember previously granted requests from a
   client and not regrant them, in order to insure some degree of
   execute-at-most-once semantics.  A server can do this by taking
   advantage of the transaction ID that is packaged with every RPC
   message.  The main use of this transaction ID is by the client RPC
   entity in matching replies to calls.  However, a client application
   may choose to reuse its previous transaction ID when retransmitting a
   call.  The server may choose to remember this ID after executing a
   call and not execute calls with the same ID, in order to achieve some
   degree of execute-at-most-once semantics.  The server is not allowed
   to examine this ID in any other way except as a test for equality.

   On the other hand, if using a "reliable" transport such as TCP, the
   application can infer from a reply message that the procedure was
   executed exactly once, but if it receives no reply message, it cannot
   assume that the remote procedure was not executed.  Note that even if
   a connection-oriented protocol like TCP is used, an application still
   needs time-outs and reconnections to handle server crashes.

   There are other possibilities for transports besides datagram- or
   connection-oriented protocols.  For example, a request-reply protocol
   such as [VMTP] is perhaps a natural transport for RPC.  ONC RPC
   currently uses both TCP and UDP transport protocols.  Section 11
   ("Record Marking Standard") describes the mechanism employed by ONC
   RPC to utilize a connection-oriented, stream-oriented transport such
   as TCP.  The mechanism by which future transports having different
   structural characteristics should be used to transfer ONC RPC
   messages should be specified by means of a Standards Track RFC, once
   such additional transports are defined.







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6.  Binding and Rendezvous Independence

   The act of binding a particular client to a particular service and
   transport parameters is NOT part of this RPC protocol specification.
   This important and necessary function is left up to some higher-level
   software.

   Implementors could think of the RPC protocol as the jump-subroutine
   instruction (JSR) of a network; the loader (binder) makes JSR useful,
   and the loader itself uses JSR to accomplish its task.  Likewise, the
   binding software makes RPC useful, possibly using RPC to accomplish
   this task.

7.  Authentication

   The RPC protocol provides the fields necessary for a client to
   identify itself to a service, and vice-versa, in each call and reply
   message.  Security and access control mechanisms can be built on top
   of this message authentication.  Several different authentication
   protocols can be supported.  A field in the RPC header indicates
   which protocol is being used.  More information on specific
   authentication protocols is in Section 8.2, "Authentication,
   Integrity and Privacy".

8.  RPC Protocol Requirements

   The RPC protocol must provide for the following:

   o  Unique specification of a procedure to be called

   o  Provisions for matching response messages to request messages

   o  Provisions for authenticating the caller to service and vice-versa

   Besides these requirements, features that detect the following are
   worth supporting because of protocol roll-over errors, implementation
   bugs, user error, and network administration:

   o  RPC protocol mismatches

   o  Remote program protocol version mismatches

   o  Protocol errors (such as misspecification of a procedure's
      parameters)

   o  Reasons why remote authentication failed

   o  Any other reasons why the desired procedure was not called



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8.1.  RPC Programs and Procedures

   The RPC call message has three unsigned-integer fields -- remote
   program number, remote program version number, and remote procedure
   number -- that uniquely identify the procedure to be called.  Program
   numbers are administered by a central authority (IANA).  Once
   implementors have a program number, they can implement their remote
   program; the first implementation would most likely have the version
   number 1 but MUST NOT be the number zero.  Because most new protocols
   evolve, a "version" field of the call message identifies which
   version of the protocol the caller is using.  Version numbers enable
   support of both old and new protocols through the same server
   process.

   The procedure number identifies the procedure to be called.  These
   numbers are documented in the specific program's protocol
   specification.  For example, a file service's protocol specification
   may state that its procedure number 5 is "read" and procedure number
   12 is "write".

   Just as remote program protocols may change over several versions,
   the actual RPC message protocol could also change.  Therefore, the
   call message also has in it the RPC version number, which is always
   equal to 2 for the version of RPC described here.

   The reply message to a request message has enough information to
   distinguish the following error conditions:

   o  The remote implementation of RPC does not support protocol version
      2.  The lowest and highest supported RPC version numbers are
      returned.

   o  The remote program is not available on the remote system.

   o  The remote program does not support the requested version number.
      The lowest and highest supported remote program version numbers
      are returned.

   o  The requested procedure number does not exist.  (This is usually a
      client-side protocol or programming error.)

   o  The parameters to the remote procedure appear to be garbage from
      the server's point of view.  (Again, this is usually caused by a
      disagreement about the protocol between client and service.)







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8.2.  Authentication, Integrity, and Privacy

   Provisions for authentication of caller to service and vice-versa are
   provided as a part of the RPC protocol.  The call message has two
   authentication fields: the credential and the verifier.  The reply
   message has one authentication field: the response verifier.  The RPC
   protocol specification defines all three fields to be the following
   opaque type (in the eXternal Data Representation (XDR) language
   [RFC4506]):

         enum auth_flavor {
            AUTH_NONE       = 0,
            AUTH_SYS        = 1,
            AUTH_SHORT      = 2,
            AUTH_DH         = 3,
            RPCSEC_GSS      = 6
            /* and more to be defined */
         };

         struct opaque_auth {
            auth_flavor flavor;
            opaque body<400>;
         };

   In other words, any "opaque_auth" structure is an "auth_flavor"
   enumeration followed by up to 400 bytes that are opaque to
   (uninterpreted by) the RPC protocol implementation.

   The interpretation and semantics of the data contained within the
   authentication fields are specified by individual, independent
   authentication protocol specifications.

   If authentication parameters were rejected, the reply message
   contains information stating why they were rejected.

   As demonstrated by RPCSEC_GSS, it is possible for an "auth_flavor" to
   also support integrity and privacy.














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8.3.  Program Number Assignment

   Program numbers are given out in groups according to the following
   chart:

             0x00000000                Reserved
             0x00000001 - 0x1fffffff   To be assigned by IANA
             0x20000000 - 0x3fffffff   Defined by local administrator
                                       (some blocks assigned here)
             0x40000000 - 0x5fffffff   Transient
             0x60000000 - 0x7effffff   Reserved
             0x7f000000 - 0x7fffffff   Assignment outstanding
             0x80000000 - 0xffffffff   Reserved

   The first group is a range of numbers administered by IANA and should
   be identical for all sites.  The second range is for applications
   peculiar to a particular site.  This range is intended primarily for
   debugging new programs.  When a site develops an application that
   might be of general interest, that application should be given an
   assigned number in the first range.  Application developers may apply
   for blocks of RPC program numbers in the first range by methods
   described in Appendix B.  The third group is for applications that
   generate program numbers dynamically.  The final groups are reserved
   for future use, and should not be used.

8.4.  Other Uses of the RPC Protocol

   The intended use of this protocol is for calling remote procedures.
   Normally, each call message is matched with a reply message.
   However, the protocol itself is a message-passing protocol with which
   other (non-procedure-call) protocols can be implemented.

8.4.1.  Batching

   Batching is useful when a client wishes to send an arbitrarily large
   sequence of call messages to a server.  Batching typically uses
   reliable byte stream protocols (like TCP) for its transport.  In the
   case of batching, the client never waits for a reply from the server,
   and the server does not send replies to batch calls.  A sequence of
   batch calls is usually terminated by a legitimate remote procedure
   call operation in order to flush the pipeline and get positive
   acknowledgement.









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8.4.2.  Broadcast Remote Procedure Calls

   In broadcast protocols, the client sends a broadcast call to the
   network and waits for numerous replies.  This requires the use of
   packet-based protocols (like UDP) as its transport protocol.  Servers
   that support broadcast protocols usually respond only when the call
   is successfully processed and are silent in the face of errors, but
   this varies with the application.

   The principles of broadcast RPC also apply to multicasting -- an RPC
   request can be sent to a multicast address.

9.  The RPC Message Protocol

   This section defines the RPC message protocol in the XDR data
   description language [RFC4506].

         enum msg_type {
            CALL  = 0,
            REPLY = 1
         };

   A reply to a call message can take on two forms: the message was
   either accepted or rejected.

         enum reply_stat {
            MSG_ACCEPTED = 0,
            MSG_DENIED   = 1
         };

   Given that a call message was accepted, the following is the status
   of an attempt to call a remote procedure.

         enum accept_stat {
            SUCCESS       = 0, /* RPC executed successfully       */
            PROG_UNAVAIL  = 1, /* remote hasn't exported program  */
            PROG_MISMATCH = 2, /* remote can't support version #  */
            PROC_UNAVAIL  = 3, /* program can't support procedure */
            GARBAGE_ARGS  = 4, /* procedure can't decode params   */
            SYSTEM_ERR    = 5  /* e.g. memory allocation failure  */
         };

   Reasons why a call message was rejected:

         enum reject_stat {
            RPC_MISMATCH = 0, /* RPC version number != 2          */
            AUTH_ERROR = 1    /* remote can't authenticate caller */
         };



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   Why authentication failed:

      enum auth_stat {
         AUTH_OK           = 0,  /* success                        */
         /*
          * failed at remote end
          */
         AUTH_BADCRED      = 1,  /* bad credential (seal broken)   */
         AUTH_REJECTEDCRED = 2,  /* client must begin new session  */
         AUTH_BADVERF      = 3,  /* bad verifier (seal broken)     */
         AUTH_REJECTEDVERF = 4,  /* verifier expired or replayed   */
         AUTH_TOOWEAK      = 5,  /* rejected for security reasons  */
         /*
          * failed locally
          */
         AUTH_INVALIDRESP  = 6,  /* bogus response verifier        */
         AUTH_FAILED       = 7,  /* reason unknown                 */
         /*
          * AUTH_KERB errors; deprecated.  See [RFC2695]
          */
         AUTH_KERB_GENERIC = 8,  /* kerberos generic error */
         AUTH_TIMEEXPIRE = 9,    /* time of credential expired */
         AUTH_TKT_FILE = 10,     /* problem with ticket file */
         AUTH_DECODE = 11,       /* can't decode authenticator */
         AUTH_NET_ADDR = 12,     /* wrong net address in ticket */
         /*
          * RPCSEC_GSS GSS related errors
          */
         RPCSEC_GSS_CREDPROBLEM = 13, /* no credentials for user */
         RPCSEC_GSS_CTXPROBLEM = 14   /* problem with context */
      };

   As new authentication mechanisms are added, there may be a need for
   more status codes to support them.  IANA will hand out new auth_stat
   numbers on a simple First Come First Served basis as defined in the
   "IANA Considerations" and Appendix B.

   The RPC message:

   All messages start with a transaction identifier, xid, followed by a
   two-armed discriminated union.  The union's discriminant is a
   msg_type that switches to one of the two types of the message.  The
   xid of a REPLY message always matches that of the initiating CALL
   message.  NB: The "xid" field is only used for clients matching reply
   messages with call messages or for servers detecting retransmissions;
   the service side cannot treat this id as any type of sequence number.





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         struct rpc_msg {
            unsigned int xid;
            union switch (msg_type mtype) {
            case CALL:
               call_body cbody;
            case REPLY:
               reply_body rbody;
            } body;
         };

   Body of an RPC call:

   In version 2 of the RPC protocol specification, rpcvers MUST be equal
   to 2.  The fields "prog", "vers", and "proc" specify the remote
   program, its version number, and the procedure within the remote
   program to be called.  After these fields are two authentication
   parameters: cred (authentication credential) and verf (authentication
   verifier).  The two authentication parameters are followed by the
   parameters to the remote procedure, which are specified by the
   specific program protocol.

   The purpose of the authentication verifier is to validate the
   authentication credential.  Note that these two items are
   historically separate, but are always used together as one logical
   entity.

        struct call_body {
           unsigned int rpcvers;       /* must be equal to two (2) */
           unsigned int prog;
           unsigned int vers;
           unsigned int proc;
           opaque_auth cred;
           opaque_auth verf;
           /* procedure-specific parameters start here */
        };

   Body of a reply to an RPC call:

         union reply_body switch (reply_stat stat) {
         case MSG_ACCEPTED:
            accepted_reply areply;
         case MSG_DENIED:
            rejected_reply rreply;
         } reply;







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   Reply to an RPC call that was accepted by the server:

   There could be an error even though the call was accepted.  The first
   field is an authentication verifier that the server generates in
   order to validate itself to the client.  It is followed by a union
   whose discriminant is an enum accept_stat.  The SUCCESS arm of the
   union is protocol-specific.  The PROG_UNAVAIL, PROC_UNAVAIL,
   GARBAGE_ARGS, and SYSTEM_ERR arms of the union are void.  The
   PROG_MISMATCH arm specifies the lowest and highest version numbers of
   the remote program supported by the server.

         struct accepted_reply {
            opaque_auth verf;
            union switch (accept_stat stat) {
            case SUCCESS:
               opaque results[0];
               /*
                * procedure-specific results start here
                */
             case PROG_MISMATCH:
                struct {
                   unsigned int low;
                   unsigned int high;
                } mismatch_info;
             default:
                /*
                 * Void.  Cases include PROG_UNAVAIL, PROC_UNAVAIL,
                 * GARBAGE_ARGS, and SYSTEM_ERR.
                 */
                void;
             } reply_data;
         };

   Reply to an RPC call that was rejected by the server:

   The call can be rejected for two reasons: either the server is not
   running a compatible version of the RPC protocol (RPC_MISMATCH) or
   the server rejects the identity of the caller (AUTH_ERROR).  In case
   of an RPC version mismatch, the server returns the lowest and highest
   supported RPC version numbers.  In case of invalid authentication,
   failure status is returned.










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         union rejected_reply switch (reject_stat stat) {
         case RPC_MISMATCH:
            struct {
               unsigned int low;
               unsigned int high;
            } mismatch_info;
         case AUTH_ERROR:
            auth_stat stat;
         };

10.  Authentication Protocols

   As previously stated, authentication parameters are opaque, but
   open-ended to the rest of the RPC protocol.  This section defines two
   standard flavors of authentication.  Implementors are free to invent
   new authentication types, with the same rules of flavor number
   assignment as there are for program number assignment.  The flavor of
   a credential or verifier refers to the value of the "flavor" field in
   the opaque_auth structure.  Flavor numbers, like RPC program numbers,
   are also administered centrally, and developers may assign new flavor
   numbers by methods described in Appendix B.  Credentials and
   verifiers are represented as variable-length opaque data (the "body"
   field in the opaque_auth structure).

   In this document, two flavors of authentication are described.  Of
   these, Null authentication (described in the next subsection) is
   mandatory -- it MUST be available in all implementations.  System
   authentication (AUTH_SYS) is described in Appendix A.  Implementors
   MAY include AUTH_SYS in their implementations to support existing
   applications.  See "Security Considerations" for information about
   other, more secure, authentication flavors.

10.1.  Null Authentication

   Often, calls must be made where the client does not care about its
   identity or the server does not care who the client is.  In this
   case, the flavor of the RPC message's credential, verifier, and reply
   verifier is "AUTH_NONE".  Opaque data associated with "AUTH_NONE" is
   undefined.  It is recommended that the length of the opaque data be
   zero.











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11.  Record Marking Standard

   When RPC messages are passed on top of a byte stream transport
   protocol (like TCP), it is necessary to delimit one message from
   another in order to detect and possibly recover from protocol errors.
   This is called record marking (RM).  One RPC message fits into one RM
   record.

   A record is composed of one or more record fragments.  A record
   fragment is a four-byte header followed by 0 to (2**31) - 1 bytes of
   fragment data.  The bytes encode an unsigned binary number; as with
   XDR integers, the byte order is from highest to lowest.  The number
   encodes two values -- a boolean that indicates whether the fragment
   is the last fragment of the record (bit value 1 implies the fragment
   is the last fragment) and a 31-bit unsigned binary value that is the
   length in bytes of the fragment's data.  The boolean value is the
   highest-order bit of the header; the length is the 31 low-order bits.
   (Note that this record specification is NOT in XDR standard form!)

12.  The RPC Language

   Just as there was a need to describe the XDR data-types in a formal
   language, there is also need to describe the procedures that operate
   on these XDR data-types in a formal language as well.  The RPC
   language is an extension to the XDR language, with the addition of
   "program", "procedure", and "version" declarations.  The keywords
   "program" and "version" are reserved in the RPC language, and
   implementations of XDR compilers MAY reserve these keywords even when
   provided with pure XDR, non-RPC, descriptions.  The following example
   is used to describe the essence of the language.





















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12.1.  An Example Service Described in the RPC Language

   Here is an example of the specification of a simple ping program.

      program PING_PROG {
            /*
             * Latest and greatest version
             */
            version PING_VERS_PINGBACK {
               void
               PINGPROC_NULL(void) = 0;
               /*
                * Ping the client, return the round-trip time
                * (in microseconds).  Returns -1 if the operation
                * timed out.
                */
               int
               PINGPROC_PINGBACK(void) = 1;
            } = 2;

            /*
             * Original version
             */
            version PING_VERS_ORIG {
               void
               PINGPROC_NULL(void) = 0;
            } = 1;
         } = 1;

         const PING_VERS = 2;      /* latest version */

   The first version described is PING_VERS_PINGBACK with two
   procedures: PINGPROC_NULL and PINGPROC_PINGBACK.  PINGPROC_NULL takes
   no arguments and returns no results, but it is useful for computing
   round-trip times from the client to the server and back again.  By
   convention, procedure 0 of any RPC protocol should have the same
   semantics and never require any kind of authentication.  The second
   procedure is used for the client to have the server do a reverse ping
   operation back to the client, and it returns the amount of time (in
   microseconds) that the operation used.  The next version,
   PING_VERS_ORIG, is the original version of the protocol, and it does
   not contain the PINGPROC_PINGBACK procedure.  It is useful for
   compatibility with old client programs, and as this program matures,
   it may be dropped from the protocol entirely.







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12.2.  The RPC Language Specification

   The RPC language is identical to the XDR language defined in RFC
   4506, except for the added definition of a "program-def", described
   below.

      program-def:
         "program" identifier "{"
            version-def
            version-def *
         "}" "=" constant ";"

      version-def:
         "version" identifier "{"
             procedure-def
             procedure-def *
         "}" "=" constant ";"

      procedure-def:
         proc-return identifier "(" proc-firstarg
           ("," type-specifier )* ")" "=" constant ";"

      proc-return: "void" | type-specifier

      proc-firstarg: "void" | type-specifier

12.3.  Syntax Notes

   o  The following keywords are added and cannot be used as
      identifiers: "program" and "version".

   o  A version name cannot occur more than once within the scope of a
      program definition.  Neither can a version number occur more than
      once within the scope of a program definition.

   o  A procedure name cannot occur more than once within the scope of a
      version definition.  Neither can a procedure number occur more
      than once within the scope of version definition.

   o  Program identifiers are in the same name space as constant and
      type identifiers.

   o  Only unsigned constants can be assigned to programs, versions, and
      procedures.

   o  Current RPC language compilers do not generally support more than
      one type-specifier in procedure argument lists; the usual practice
      is to wrap arguments into a structure.



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13.  IANA Considerations

   The assignment of RPC program numbers, authentication flavor numbers,
   and authentication status numbers has in the past been performed by
   Sun Microsystems, Inc (Sun).  This is inappropriate for an IETF
   Standards Track protocol, as such work is done well by the Internet
   Assigned Numbers Authority (IANA).  This document proposes the
   transfer of authority over RPC program numbers, authentication flavor
   numbers, and authentication status numbers described here from Sun
   Microsystems, Inc. to IANA and describes how IANA will maintain and
   assign these numbers.  Users of RPC protocols will benefit by having
   an independent body responsible for these number assignments.

13.1.  Numbering Requests to IANA

   Appendix B of this document describes the information to be sent to
   IANA to request one or more RPC numbers and the rules that apply.
   IANA will store the request for documentary purposes and put the
   following information into the public registry:

   o  The short description of purpose and use

   o  The program number(s) assigned

   o  The short identifier string(s)

13.2.  Protecting Past Assignments

   Sun has made assignments in both the RPC program number space and the
   RPC authentication flavor number space since the original deployment
   of RPC.  The assignments made by Sun Microsystems are still valid,
   and will be preserved.  Sun has communicated all current assignments
   in both number spaces to IANA and final handoff of number assignment
   is complete.  Current program and auth number assignments are
   provided in Appendix C.  Current authentication status numbers are
   listed in Section 9 of this document in the "enum auth_stat"
   definition.

13.3.  RPC Number Assignment

   Future IANA practice will deal with the following partitioning of the
   32-bit number space as listed in Section 8.3.  Detailed information
   for the administration of the partitioned blocks in Section 8.3 is
   given below.







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13.3.1.  To Be Assigned By IANA

   The first block will be administered by IANA, with previous
   assignments by Sun protected.  Previous assignments were restricted
   to the range decimal 100000-399999 (0x000186a0 to 0x00061a7f);
   therefore, IANA will begin assignments at decimal 400000.  Individual
   numbers should be grated on a First Come First Served basis, and
   blocks should be granted under rules related to the size of the
   block.

13.3.2.  Defined by Local Administrator

   The "Defined by local administrator" block is available for any local
   administrative domain to use, in a similar manner to IP address
   ranges reserved for private use.  The expected use would be through
   the establishment of a local domain "authority" for assigning numbers
   from this range.  This authority would establish any policies or
   procedures to be used within that local domain for use or assignment
   of RPC numbers from the range.  The local domain should be
   sufficiently isolated that it would be unlikely that RPC applications
   developed by other local domains could communicate with the domain.
   This could result in RPC number contention, which would cause one of
   the applications to fail.  In the absence of a local administrator,
   this block can be utilized in a "Private Use" manner per [RFC5226].

13.3.3.  Transient Block

   The "Transient" block can be used by any RPC application on an "as
   available" basis.  This range is intended for services that can
   communicate a dynamically selected RPC program number to clients of
   the service.  Any mechanism can be used to communicate the number.
   For example, either shared memory when the client and server are
   located on the same system or a network message (either RPC or
   otherwise) that disseminates the selected number can be used.

   The transient block is not administered.  An RPC service uses this
   range by selecting a number in the transient range and attempting to
   register that number with the local system's RPC bindery (see the
   RPCBPROC_SET or PMAPPROC_SET procedures in "Binding Protocols for ONC
   RPC Version 2", [RFC1833]).  If successful, no other RPC service was
   using that number and the RPC Bindery has assigned that number to the
   requesting RPC application.  The registration is valid until the RPC
   Bindery terminates, which normally would only happen if the system
   reboots, causing all applications, including the RPC service using
   the transient number, to terminate.  If the transient number
   registration fails, another RPC application is using the number and





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   the requestor must select another number and try again.  To avoid
   conflicts, the recommended method is to select a number randomly from
   the transient range.

13.3.4.  Reserved Block

   The "Reserved" blocks are available for future use.  RPC applications
   must not use numbers in these ranges unless their use is allowed by
   future action by the IESG.

13.3.5.  RPC Number Sub-Blocks

   RPC numbers are usually assigned for specific RPC services.  Some
   applications, however, require multiple RPC numbers for a service.
   The most common example is an RPC service that needs to have multiple
   instances of the service active simultaneously at a specific site.
   RPC does not have an "instance identifier" in the protocol, so either
   a mechanism must be implemented to multiplex RPC requests amongst
   various instances of the service or unique RPC numbers must be used
   by each instance.

   In these cases, the RPC protocol used with the various numbers may be
   different or the same.  The numbers may either be assigned
   dynamically by the application, or as part of a site-specific
   administrative decision.  If possible, RPC services that dynamically
   assign RPC numbers should use the "Transient" RPC number block
   defined in Section 13.3.3.  If not possible, RPC number sub-blocks
   may be requested.

   Assignment of RPC Number Sub-Blocks is controlled by the size of the
   sub-block being requested.  "Specification Required" and "IESG
   Approval" are used as defined by Section 4.1 of [RFC5226].

   Size of sub-block        Assignment Method         Authority
   -----------------        -----------------         ---------
   Up to 100 numbers        First Come First Served   IANA
   Up to 1000 numbers       Specification Required    IANA
   More than 1000 numbers   IESG Approval required    IESG

   Note: sub-blocks can be any size.  The limits given above are
   maximums, and smaller size sub-blocks are allowed.

   Sub-blocks sized up to 100 numbers may be assigned by IANA on a First
   Come First Served basis.  The RPC Service Description included in the
   range must include an indication of how the sub-block is managed.  At
   a minimum, the statement should indicate whether the sub-block is





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   used with a single RPC protocol or multiple RPC protocols, and
   whether the numbers are dynamically assigned or statically (through
   administrative action) assigned.

   Sub-blocks of up to 1000 numbers must be documented in detail.  The
   documentation must describe the RPC protocol or protocols that are to
   be used in the range.  It must also describe how the numbers within
   the sub-block are to be assigned or used.

   Sub-blocks sized over 1000 numbers must be documented as described
   above, and the assignment must be approved by the IESG.  It is
   expected that this will be rare.

   In order to avoid multiple requests of large blocks of numbers, the
   following rule is proposed.

   Requests up to and including 100 RPC numbers are handled via the
   First Come First Served assignment method.  This 100 number threshold
   applies to the total number of RPC numbers assigned to an individual
   or entity.  For example, if an individual or entity first requests,
   say, 70 numbers, and then later requests 40 numbers, then the request
   for the 40 numbers will be assigned via the Specification Required
   method.  As long as the total number of numbers assigned does not
   exceed 1000, IANA is free to waive the Specification Required
   assignment for incremental requests of less than 100 numbers.

   If an individual or entity has under 1000 numbers and later requests
   an additional set of numbers such that the individual or entity would
   be granted over 1000 numbers, then the additional request will
   require IESG Approval.

13.4.  RPC Authentication Flavor Number Assignment

   The second number space is the authentication mechanism identifier,
   or "flavor", number.  This number is used to distinguish between
   various authentication mechanisms that can be optionally used with an
   RPC message.  An authentication identifier is used in the "flavor"
   field of the "opaque_auth" structure.

13.4.1.  Assignment Policy

   Appendix B of this document describes the information to be sent to
   IANA to request one or more RPC auth numbers and the rules that
   apply.  IANA will store the request for documentary purposes and put
   the following information into the public registry:






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   o  The short identifier string(s)

   o  The auth number(s) assigned

   o  The short description of purpose and use

13.4.2.  Auth Flavors vs. Pseudo-Flavors

   Recent progress in RPC security has moved away from new auth flavors
   as used by AUTH_DH [DH], and has focused on using the existing
   RPCSEC_GSS [RFC2203] flavor and inventing novel GSS-API (Generic
   Security Services Application Programming Interface) mechanisms that
   can be used with it.  Even though RPCSEC_GSS is an assigned
   authentication flavor, use of a new RPCSEC_GSS mechanism with the
   Network File System (NFS) ([RFC1094] [RFC1813], and [RFC3530]) will
   require the registration of 'pseudo-flavors' that are used to
   negotiate security mechanisms in an unambiguous way, as defined by
   [RFC2623].  Existing pseudo-flavors have been granted in the decimal
   range 390000-390255.  New pseudo-flavor requests will be granted by
   IANA within this block on a First Come First Served basis.

   For non-pseudo-flavor requests, IANA will begin granting RPC
   authentication flavor numbers at 400000 on a First Come First Served
   basis to avoid conflicts with currently granted numbers.

   For authentication flavors or RPCSEC_GSS mechanisms to be used on the
   Internet, it is strongly advised that an Informational or Standards
   Track RFC be published describing the authentication mechanism
   behaviour and parameters.

13.5.  Authentication Status Number Assignment

   The final number space is the authentication status or "auth_stat"
   values that describe the nature of a problem found during an attempt
   to authenticate or validate authentication.  The complete initial
   list of these values is found in Section 9 of this document, in the
   "auth_stat" enum listing.  It is expected that it will be rare to add
   values, but that a small number of new values may be added from time
   to time as new authentication flavors introduce new possibilities.
   Numbers should be granted on a First Come First Served basis to avoid
   conflicts with currently granted numbers.

13.5.1.  Assignment Policy

   Appendix B of this document describes the information to be sent to
   IANA to request one or more auth_stat values and the rules that
   apply.  IANA will store the request for documentary purposes, and put
   the following information into the public registry:



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   o  The short identifier string(s)

   o  The auth_stat number(s) assigned

   o  The short description of purpose and use

14.  Security Considerations

   AUTH_SYS as described in Appendix A is known to be insecure due to
   the lack of a verifier to permit the credential to be validated.
   AUTH_SYS SHOULD NOT be used for services that permit clients to
   modify data.  AUTH_SYS MUST NOT be specified as RECOMMENDED or
   REQUIRED for any Standards Track RPC service.

   AUTH_DH as mentioned in Sections 8.2 and 13.4.2 is considered
   obsolete and insecure; see [RFC2695].  AUTH_DH SHOULD NOT be used for
   services that permit clients to modify data.  AUTH_DH MUST NOT be
   specified as RECOMMENDED or REQUIRED for any Standards Track RPC
   service.

   [RFC2203] defines a new security flavor, RPCSEC_GSS, which permits
   GSS-API [RFC2743] mechanisms to be used for securing RPC.  All non-
   trivial RPC programs developed in the future should implement
   RPCSEC_GSS-based security appropriately.  [RFC2623] describes how
   this was done for a widely deployed RPC program.

   Standards Track RPC services MUST mandate support for RPCSEC_GSS, and
   MUST mandate support for an authentication pseudo-flavor with
   appropriate levels of security, depending on the need for simple
   authentication, integrity (a.k.a. non-repudiation), or data privacy.





















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Appendix A: System Authentication

   The client may wish to identify itself, for example, as it is
   identified on a UNIX(tm) system.  The flavor of the client credential
   is "AUTH_SYS".  The opaque data constituting the credential encodes
   the following structure:

         struct authsys_parms {
            unsigned int stamp;
            string machinename<255>;
            unsigned int uid;
            unsigned int gid;
            unsigned int gids<16>;
         };

   The "stamp" is an arbitrary ID that the caller machine may generate.
   The "machinename" is the name of the caller's machine (like
   "krypton").  The "uid" is the caller's effective user ID.  The "gid"
   is the caller's effective group ID.  "gids" are a counted array of
   groups that contain the caller as a member.  The verifier
   accompanying the credential should have "AUTH_NONE" flavor value
   (defined above).  Note that this credential is only unique within a
   particular domain of machine names, uids, and gids.

   The flavor value of the verifier received in the reply message from
   the server may be "AUTH_NONE" or "AUTH_SHORT".  In the case of
   "AUTH_SHORT", the bytes of the reply verifier's string encode an
   opaque structure.  This new opaque structure may now be passed to the
   server instead of the original "AUTH_SYS" flavor credential.  The
   server may keep a cache that maps shorthand opaque structures (passed
   back by way of an "AUTH_SHORT" style reply verifier) to the original
   credentials of the caller.  The caller can save network bandwidth and
   server cpu cycles by using the shorthand credential.

   The server may flush the shorthand opaque structure at any time.  If
   this happens, the remote procedure call message will be rejected due
   to an authentication error.  The reason for the failure will be
   "AUTH_REJECTEDCRED".  At this point, the client may wish to try the
   original "AUTH_SYS" style of credential.

   It should be noted that use of this flavor of authentication does not
   guarantee any security for the users or providers of a service, in
   itself.  The authentication provided by this scheme can be considered
   legitimate only when applications using this scheme and the network
   can be secured externally, and privileged transport addresses are
   used for the communicating end-points (an example of this is the use
   of privileged TCP/UDP ports in UNIX systems -- note that not all
   systems enforce privileged transport address mechanisms).



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Appendix B: Requesting RPC-Related Numbers from IANA

   RPC program numbers, authentication flavor numbers, and
   authentication status numbers that must be unique across all networks
   are assigned by the Internet Assigned Number Authority.  To apply for
   a single number or a block of numbers, electronic mail must be sent
   to IANA <iana@iana.org> with the following information:

   o  The type of number(s) (program number or authentication flavor
      number or authentication status number) sought

   o  How many numbers are sought

   o  The name of the person or company that will use the number

   o  An "identifier string" that associates the number with a service

   o  Email address of the contact person for the service that will be
      using the number

   o  A short description of the purpose and use of the number

   o  If an authentication flavor number is sought, and the number will
      be a 'pseudo-flavor' intended for use with RPCSEC_GSS and NFS,
      mappings analogous to those in Section 4.2 of [RFC2623]

   Specific numbers cannot be requested.  Numbers are assigned on a
   First Come First Served basis.

   For all RPC authentication flavor and authentication status numbers
   to be used on the Internet, it is strongly advised that an
   Informational or Standards Track RFC be published describing the
   authentication mechanism behaviour and parameters.


















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Appendix C: Current Number Assignments

   #
   # Sun-assigned RPC numbers
   #
   # Description/Owner        RPC Program Number        Short Name
   # -----------------------------------------------------------------
   portmapper                         100000    pmapprog portmap rpcbind
   remote stats                       100001    rstatprog
   remote users                       100002    rusersprog
   nfs                                100003    nfs
   yellow pages (NIS)                 100004    ypprog ypserv
   mount demon                        100005    mountprog
   remote dbx                         100006    dbxprog
   yp binder (NIS)                    100007    ypbindprog ypbind
   shutdown msg                       100008    wall
   yppasswd server                    100009    yppasswdprog yppasswdd
   ether stats                        100010    etherstatprog
   disk quotas                        100011    rquota
   spray packets                      100012    spray
   3270 mapper                        100013    ibm3270prog
   RJE mapper                         100014    ibmrjeprog
   selection service                  100015    selnsvcprog
   remote database access             100016    rdatabaseprog
   remote execution                   100017    rexec
   Alice Office Automation            100018    aliceprog
   scheduling service                 100019    schedprog
   local lock manager                 100020    lockprog llockmgr
   network lock manager               100021    netlockprog nlockmgr
   x.25 inr protocol                  100022    x25prog
   status monitor 1                   100023    statmon1
   status monitor 2                   100024    statmon2
   selection library                  100025    selnlibprog
   boot parameters service            100026    bootparam
   mazewars game                      100027    mazeprog
   yp update (NIS)                    100028    ypupdateprog ypupdate
   key server                         100029    keyserveprog
   secure login                       100030    securecmdprog
   nfs net forwarder init             100031    netfwdiprog
   nfs net forwarder trans            100032    netfwdtprog
   sunlink MAP                        100033    sunlinkmap
   network monitor                    100034    netmonprog
   lightweight database               100035    dbaseprog
   password authorization             100036    pwdauthprog
   translucent file svc               100037    tfsprog
   nse server                         100038    nseprog
   nse activate daemon                100039    nse_activate_prog
   sunview help                       100040    sunview_help_prog



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   pnp install                        100041    pnp_prog
   ip addr allocator                  100042    ipaddr_alloc_prog
   show filehandle                    100043    filehandle
   MVS NFS mount                      100044    mvsnfsprog
   remote user file operations        100045    rem_fileop_user_prog
   batched ypupdate                   100046    batch_ypupdateprog
   network execution mgr              100047    nem_prog
   raytrace/mandelbrot remote daemon  100048    raytrace_rd_prog
   raytrace/mandelbrot local daemon   100049    raytrace_ld_prog
   remote group file operations       100050    rem_fileop_group_prog
   remote system file operations      100051    rem_fileop_system_prog
   remote system role operations      100052    rem_system_role_prog
   gpd lego fb simulator              100053    [unknown]
   gpd simulator interface            100054    [unknown]
   ioadmd                             100055    ioadmd
   filemerge                          100056    filemerge_prog
   Name Binding Program               100057    namebind_prog
   sunlink NJE                        100058    njeprog
   MVSNFS get attribute service       100059    mvsattrprog
   SunAccess/SunLink resource manager 100060    rmgrprog
   UID allocation service             100061    uidallocprog
   license broker                     100062    lbserverprog
   NETlicense client binder           100063    lbbinderprog
   GID allocation service             100064    gidallocprog
   SunIsam                            100065    sunisamprog
   Remote Debug Server                100066    rdbsrvprog
   Network Directory Daemon           100067    [unknown]
   Network Calendar Program           100068    cmsd cm
   ypxfrd                             100069    ypxfrd
   rpc.timed                          100070    timedprog
   bugtraqd                           100071    bugtraqd
                                      100072    [unknown]
   Connectathon Billboard - NFS       100073    [unknown]
   Connectathon Billboard - X         100074    [unknown]
   Sun tool for scheduling rooms      100075    schedroom
   Authentication Negotiation         100076    authnegotiate_prog
   Database manipulation              100077    attribute_prog
   Kerberos authentication daemon     100078    kerbprog
   Internal testing product (no name) 100079    [unknown]
   Sun Consulting Special             100080    autodump_prog
   Event protocol                     100081    event_svc
   bugtraq_qd                         100082    bugtraq_qd
   ToolTalk and Link Service Project  100083    database service
   Consulting Services                100084    [unknown]
   Consulting Services                100085    [unknown]
   Consulting Services                100086    [unknown]
   Jupiter Administration             100087    adm_agent admind
                                      100088    [unknown]



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                                      100089    [unknown]
   Dual Disk support                  100090    libdsd/dsd
   DocViewer 1.1                      100091    [unknown]
   ToolTalk                           100092    remote_activation_svc
   Consulting Services                100093    host_checking
   SNA peer-to-peer                   100094    [unknown]
   Roger Riggs                        100095    searchit
   Robert Allen                       100096    mesgtool
   SNA                                100097    [unknown]
   SISU                               100098    networked version of CS5
   NFS Automount File System          100099    autofs
                                      100100    msgboard
   event dispatching agent [eventd]   100101    netmgt_eventd_prog
   statistics/event logger [netlogd]  100102    netmgt_netlogd_prog
   topology display manager [topology]100103    netmgt_topology_prog
   syncstat agent [syncstatd]         100104    netmgt_syncstatd_prog
   ip packet stats agent [ippktd]     100105    netmgt_ippktd_prog
   netmgt config agent [configd]      100106    netmgt_configd_prog
   restat agent [restatd]             100107    netmgt_restatd_prog
   lpq agent [lprstatd]               100108    netmgt_lprstatd_prog
   netmgt activity agent [mgtlogd]    100109    netmgt_mgtlogd_prog
   proxy DECnet NCP agent [proxydni]  100110    netmgt_proxydni_prog
   topology mapper agent [mapperd]    100111    netmgt_mapperd_prog
   netstat agent [netstatd]           100112    netmgt_netstatd_prog
   sample netmgt agent [sampled]      100113    netmgt_sampled_prog
   X.25 statistics agent [vcstatd]    100114    netmgt_vcstatd_prog
   Frame Relay                        100128    [unknown]
   PPP agent                          100129    [unknown]
   localhad                           100130    rpc.localhad
   layers2                            100131    na.layers2
   token ring agent                   100132    na.tr
   related to lockd and statd         100133    nsm_addr
   Kerberos project                   100134    kwarn
   ertherif2                          100135    na.etherif2
   hostmem2                           100136    na.hostmem2
   iostat2                            100137    na.iostat2
   snmpv2                             100138    na.snmpv2
   Cooperative Console                100139    cc_sender
   na.cpustat                         100140    na.cpustat
   Sun Cluster SC3.0                  100141    rgmd_receptionist
                                      100142    fed
   Network Storage                    100143    rdc
   Sun Cluster products               100144    nafo
   SunCluster 3.0                     100145    scadmd
   ASN.1                              100146    amiserv
                                      100147    amiaux # BER and DER
                                                 encode and decode
   Delegate Management Server         100148    dm



Thurlow                     Standards Track                    [Page 29]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      100149    rkstat
                                      100150    ocfserv
                                      100151    sccheckd
                                      100152    autoclientd
                                      100153    sunvts
                                      100154    ssmond
                                      100155    smserverd
                                      100156    test1
                                      100157    test2
                                      100158    test3
                                      100159    test4
                                      100160    test5
                                      100161    test6
                                      100162    test7
                                      100163    test8
                                      100164    test9
                                      100165    test10
                                      100166    nfsmapid
                                      100167    SUN_WBEM_C_CIMON_HANDLE
                                      100168    sacmmd
                                      100169    fmd_adm
                                      100170    fmd_api
                                      100171    [unknown]
                                      100172    idmapd
   unassigned                         100173 - 100174
   snmptrap                           100175    na.snmptrap
   unassigned                         100176-100199

   unassigned                         100200
   MVS/NFS Memory usage stats server  100201    [unknown]
   Netapp                             100202-100207
   unassigned                         100208-100210
   8.0 SunLink SNA RJE                100211    [unknown]
   8.0 SunLink SNA RJE                100212    [unknown]
                                      100213    ShowMe
                                      100214    [unknown]
                                      100215    [unknown]
   AUTH_RSA Key service               100216    keyrsa
   SunSelect PC license service       100217    [unknown]
   WWCS (Corporate)                   100218    sunsolve
                                      100219    cstatd
   X/Open Federated Naming            100220    xfn_server_prog
   Kodak Color Management System      100221    kcs_network_io kcs
   HA-DBMS                            100222    ha_dbms_serv
                                      100223-100225    [unknown]
                                      100226    hafaultd
   NFS ACL Service                    100227    nfs_acl
   distributed lock manager           100228    dlmd



Thurlow                     Standards Track                    [Page 30]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      100229    metad
                                      100230    metamhd
                                      100231    nfsauth
                                      100232    sadmind
                                      100233    ufsd
                                      100234    grpservd
                                      100235    cachefsd
                                      100236    msmprog Media_Server
                                      100237    ihnamed
                                      100238    ihnetd
                                      100239    ihsecured
                                      100240    ihclassmgrd
                                      100241    ihrepositoryd
                                      100242    metamedd rpc.metamedd
                                      100243    contentmanager cm
                                      100244    symon
                                      100245    pld genesil
                                      100246    ctid
                                            cluster_transport_interface
                                      100247    ccd
                                            cluster_configuration_db
                                      100248    pmfd
                                      100249    dmi2_client
                                      100250    mfs_admin
                                      100251    ndshared_unlink
                                      100252    ndshared_touch
                                      100253    ndshared_slink
                                      100254    cbs control_board_server
                                      100255    skiserv
                                      100256    nfsxa nfsxattr
                                      100257    ndshared_disable
                                      100258    ndshared_enable
                                      100259    sms_account_admin
                                      100260    sms_modem_admin
                                      100261    sms_r_login
                                      100262    sms_r_subaccount_mgt
                                      100263    sms_service_admin
                                      100264    session_admin
                                      100265    canci_ancs_program
                                      100266    canci_sms_program
                                      100267    msmp
                                      100268    halck
                                      100269    halogmsg
                                      100270    nfs_id_map
                                      100271    ncall
                                      100272    hmip
                                      100273    repl_mig
                                      100274    repl_mig_cb



Thurlow                     Standards Track                    [Page 31]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


   NIS+                               100300    nisplus
   NIS+                               100301    nis_cachemgr
   NIS+ call back protocol            100302    [unknown]
   NIS+ Password Update Daemon        100303    nispasswdd
   FNS context update in NIS          100304    fnsypd
                                      100305    [unknown]
                                      100306    [unknown]
                                      100307    [unknown]
                                      100308    [unknown]
                                      100309    [unknown]
   unassigned                         100310 - 100398
   nfscksum                           100399    nfscksum
   network utilization agent          100400    netmgt_netu_prog
   network rpc ping agent             100401    netmgt_rping_prog
                                      100402    na.shell
   picsprint                          100403    na.picslp
                                      100404    traps
                                      100405 - 100409 [unknown]
                                      100410    jdsagent
                                      100411    na.haconfig
                                      100412    na.halhost
                                      100413    na.hadtsrvc
                                      100414    na.hamdstat
                                      100415    na.neoadmin
                                      100416    ex1048prog
   rdmaconfig                         100417    rpc.rdmaconfig
   IETF NFSv4 Working Group - FedFS   100418 - 100421
                                      100422    mdcommd
                                      100423    kiprop krb5_iprop
                                      100424    stsf
   unassigned                         100425 - 100499
   Sun Microsystems                   100500 - 100531 [unknown]
                                      100532    ucmmstate
                                      100533    scrcmd
   unassigned                         100534 - 100999
   nse link daemon                    101002    nselinktool
   nse link application               101003    nselinkapp
   unassigned                         101004 - 101900
                                      101901    [unknown]
   unassigned                         101902 - 101999
   AssetLite                          102000    [unknown]
   PagerTool                          102001    [unknown]
   Discover                           102002    [unknown]
   unassigned                         102003 - 105000
   ShowMe                             105001    sharedapp
   Registry                           105002    REGISTRY_PROG
   Print-server                       105003    print-server
   Proto-server                       105004    proto-server



Thurlow                     Standards Track                    [Page 32]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


   Notification-server                105005    notification-server
   Transfer-agent-server              105006    transfer-agent-server
   unassigned                         105007 - 110000
                                      110001    tsolrpcb
                                      110002    tsolpeerinfo
                                      110003    tsolboot
                                      120001    cmip na.cmip
                                      120002    na.osidiscover
                                      120003    cmiptrap
   unassigned                         120004 - 120099
                                      120100    eserver
                                      120101    repserver
                                      120102    swserver
                                      120103    dmd
                                      120104    ca
   unassigned                         120105 - 120125
                                      120126    nf_fddi
                                      120127    nf_fddismt7_2
   unassigned                         120128 - 150000
   pc passwd authorization            150001    pcnfsdprog
   TOPS name mapping                  150002    [unknown]
   TOPS external attribute storage    150003    [unknown]
   TOPS hierarchical file system      150004    [unknown]
   TOPS NFS transparency extensions   150005    [unknown]
   PC NFS License                     150006    pcnfslicense
   RDA                                150007    rdaprog
   WabiServer                         150008    wsprog
   WabiServer                         150009    wsrlprog
   unassigned                         150010 - 160000
                                      160001    nihon-cm
                                      160002    nihon-ce
   unassigned                         160003 - 170099
                                      170100    domf_daemon0
                                      170101    domf_daemon1
                                      170102    domf_daemon2
                                      170103    domf_daemon3
                                      170104    domf_daemon4
                                      170105    domf_daemon5
   unassigned                         170106 - 179999
                                      180000    cecprog
                                      180001    cecsysprog
                                      180002    cec2cecprog
                                      180003    cesprog
                                      180004    ces2cesprog
                                      180005    cet2cetprog
                                      180006    cet2cetdoneprog
                                      180007    cetcomprog
                                      180008    cetsysprog



Thurlow                     Standards Track                    [Page 33]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      180009    cghapresenceprog
                                      180010    cgdmsyncprog
                                      180011    cgdmcnscliprog
                                      180012    cgdmcrcscliprog
                                      180013    cgdmcrcssvcproG
                                      180014    chmprog
                                      180015    chmsysprog
                                      180016    crcsapiprog
                                      180017    ckptmprog
                                      180018    crimcomponentprog
                                      180019    crimqueryprog
                                      180020    crimsecondaryprog
                                      180021    crimservicesprog
                                      180022    crimsyscomponentprog
                                      180023    crimsysservicesprog
                                      180024    csmagtapiprog
                                      180025    csmagtcallbackprog
                                      180026    csmreplicaprog
                                      180027    csmsrvprog
                                      180028    cssccltprog
                                      180029    csscsvrprog
                                      180030    csscopresultprog
   unassigned                         180031 - 199999
                                      200000    pyramid_nfs
                                      200001    pyramid_reserved
                                      200002    cadds_image
                                      200003    stellar_name_prog
                                      200004    [unknown]
                                      200005    [unknown]
                                      200006    pacl
                                      200007    lookupids
                                      200008    ax_statd_prog
                                      200009    ax_statd2_prog
                                      200010    edm
                                      200011    dtedirwd
                                      200012    [unknown]
                                      200013    [unknown]
                                      200014    [unknown]
                                      200015    [unknown]
                                      200016    easerpcd
                                      200017    rlxnfs
                                      200018    sascuiddprog
                                      200019    knfsd
                                      200020    ftnfsd ftnfsd_program
                                      200021    ftsyncd ftsyncd_program
                                      200022    ftstatd ftstatd_program
                                      200023    exportmap
                                      200024    nfs_metadata



Thurlow                     Standards Track                    [Page 34]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


   unassigned                         200025 - 200200
                                      200201    ecoad
                                      200202    eamon
                                      200203    ecolic
                                      200204    cs_printstatus_svr
                                      200205    ecodisc
   unassigned                         200206 - 300000
                                      300001    adt_rflockprog
                                      300002    columbine1
                                      300003    system33_prog
                                      300004    frame_prog1
                                      300005    uimxprog
                                      300006    rvd
                                      300007    entombing daemon
                                      300008    account mgmt system
                                      300009    frame_prog2
                                      300010    beeper access
                                      300011    dptuprog
                                      300012    mx-bcp
                                      300013    instrument-file-access
                                      300014    file-system-statistics
                                      300015    unify-database-server
                                      300016    tmd_msg
                                      300017    [unknown]
                                      300018    [unknown]
                                      300019    automounter access
                                      300020    lock server
                                      300021    [unknown]
                                      300022    office-automation-1
                                      300023    office-automation-2
                                      300024    office-automation-3
                                      300025    office-automation-4
                                      300026    office-automation-5
                                      300027    office-automation-6
                                      300028    office-automation-7
                                      300029    local-data-manager
                                      300030    chide
                                      300031    csi_program
                                      300032    [unknown]
                                      300033    online-help
                                      300034    case-tool
                                      300035    delta
                                      300036    rgi
                                      300037    instrument-config-server
                                      300038    [unknown]
                                      300039    [unknown]
                                      300040    dtia-rpc-server
                                      300041    cms



Thurlow                     Standards Track                    [Page 35]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      300042    viewer
                                      300043    aqm
                                      300044    exclaim
                                      300045    masterplan
                                      300046    fig_tool
                                      300047    [unknown]
                                      300048    [unknown]
                                      300049    [unknown]
                                      300050    remote-lock-manager
                                      300051    [unknown]
                                      300052    gdebug
                                      300053    ldebug
                                      300054    rscanner
                                      300055    [unknown]
                                      300056    [unknown]
                                      300057    [unknown]
                                      300058    [unknown]
                                      300059    [unknown]
                                      300060    [unknown]
                                      300061    [unknown]
                                      300062    [unknown]
                                      300063    [unknown]
                                      300064    [unknown]
                                      300065    [unknown]
                                      300066    nSERVER
                                      300067    [unknown]
                                      300068    [unknown]
                                      300069    [unknown]
                                      300070    [unknown]
                                      300071    BioStation
                                      300072    [unknown]
                                      300073    NetProb
                                      300074    Logging
                                      300075    Logging
                                      300076    [unknown]
                                      300077    [unknown]
                                      300078    [unknown]
                                      300079    [unknown]
                                      300080    [unknown]
                                      300081    [unknown]
                                      300082    sw_twin
                                      300083    remote_get_login
                                      300084    odcprog
                                      300085    [unknown]
                                      300086    [unknown]
                                      300087    [unknown]
                                      300088    [unknown]
                                      300089    [unknown]



Thurlow                     Standards Track                    [Page 36]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      300090    [unknown]
                                      300091    smartdoc
                                      300092    superping
                                      300093    distributed-chembench
                                      300094    uacman/alfil-uacman
                                      300095    ait_rcagent_prog
                                      300096    ait_rcagent_appl_prog
                                      300097    smart
                                      300098    ecoprog
                                      300099    leonardo
                                      300100    [unknown]
                                      300101    [unknown]
                                      300102    [unknown]
                                      300103    [unknown]
                                      300104    [unknown]
                                      300105    [unknown]
                                      300106    [unknown]
                                      300107    [unknown]
                                      300108    wingz
                                      300109    teidan
                                      300110    [unknown]
                                      300111    [unknown]
                                      300112    [unknown]
                                      300113    [unknown]
                                      300114    [unknown]
                                      300115    [unknown]
                                      300116    cadc_fhlockprog
                                      300117    highscan
                                      300118    [unknown]
                                      300119    [unknown]
                                      300120    [unknown]
                                      300121    opennavigator
                                      300122    aarpcxfer
                                      300123    [unknown]
                                      300124    [unknown]
                                      300125    [unknown]
                                      300126    groggs
                                      300127    licsrv
                                      300128    issdemon
                                      300129    [unknown]
                                      300130    maximize
                                      300131    cgm_server
                                      300132    [unknown]
                                      300133    agent_rpc
                                      300134    docmaker
                                      300135    docmaker
                                      300136    [unknown]
                                      300137    [unknown]



Thurlow                     Standards Track                    [Page 37]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      300138    [unknown]
                                      300139    iesx
                                      300140    [unknown]
                                      300141    [unknown]
                                      300142    [unknown]
                                      300143    [unknown]
                                      300144    smart-mbs
                                      300145    [unknown]
                                      300146    [unknown]
                                      300147    docimage
                                      300148    [unknown]
                                      300149    dmc-interface
                                      300150    [unknown]
                                      300151    jss
                                      300152    [unknown]
                                      300153    arimage
                                      300154    xdb-workbench
                                      300155    frontdesk
                                      300156    dmc
                                      300157    expressight-6000
                                      300158    graph service program
                                      300159    [unknown]
                                      300160    [unknown]
                                      300161    [unknown]
                                      300162    [unknown]
                                      300163    [unknown]
                                      300164    [unknown]
                                      300165    [unknown]
                                      300166    [unknown]
                                      300167    [unknown]
                                      300168    [unknown]
                                      300169    [unknown]
                                      300170    [unknown]
                                      300171    [unknown]
                                      300172    [unknown]
                                      300173    [unknown]
                                      300174    [unknown]
                                      300175    [unknown]
                                      300176    rlpr
                                      300177    nx_hostdprog
                                      300178    netuser-x
                                      300179    rmntprog
                                      300180    [unknown]
                                      300181    mipe
                                      300182    [unknown]
                                      300183    collectorprog
                                      300184    uslookup_PROG
                                      300185    viewstation



Thurlow                     Standards Track                    [Page 38]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      300186    iate
                                      300187    [unknown]
                                      300188    [unknown]
                                      300189    [unknown]
                                      300190    imsvtprog
                                      300191    [unknown]
                                      300192    [unknown]
                                      300193    [unknown]
                                      300194    pmdb
                                      300195    pmda
                                      300196    [unknown]
                                      300197    [unknown]
                                      300198    trend_idbd
                                      300199    rres
                                      300200    sd.masterd
                                      300201    sd.executiond
                                      300202    sd.listend
                                      300203    sd.reserve1
                                      300204    sd.reserve2
                                      300205    msbd
                                      300206    stagedprog
                                      300207    mountprog
                                      300208    watchdprog
                                      300209    pms
                                      300210    [unknown]
                                      300211    session_server_program
                                      300212    session_program
                                      300213    debug_serverprog
                                      300214    [unknown]
                                      300215    [unknown]
                                      300216    paceprog
                                      300217    [unknown]
                                      300218    mbus
                                      300219    aframes2ps
                                      300220    npartprog
                                      300221    cm1server
                                      300222    cm1bridge
                                      300223    sailfrogfaxprog
                                      300224    sailfrogphoneprog
                                      300225    sailfrogvmailprog
                                      300226    wserviceprog arcstorm
                                      300227    hld
                                      300228    alive
                                      300229    radsp
                                      300230    radavx
                                      300231    radview
                                      300232    rsys_prog
                                      300233    rsys_prog



Thurlow                     Standards Track                    [Page 39]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      300234    fm_rpc_prog
                                      300235    aries
                                      300236    uapman
                                      300237    ddman
                                      300238    top
                                      300239    [unknown]
                                      300240    trendlink
                                      300241    licenseprog
                                      300242    statuslicenseprog
                                      300243    oema_rmpf_svc
                                      300244    oema_smpf_svc
                                      300245    oema_rmsg_svc
                                      300246    grapes-sd
                                      300247    ds_master
                                      300248    ds_transfer
                                      300249    ds_logger
                                      300250    ds_query
                                      300251    [unknown]
                                      300252    [unknown]
                                      300253    nsd_prog
                                      300254    browser
                                      300255    epoch
                                      300256    floorplanner
                                      300257    reach
                                      300258    tactic
                                      300259    cachescientific1
                                      300260    cachescientific2
                                      300261    desksrc_prog
                                      300262    photo3d1
                                      300263    photo3d2
                                      300264    [unknown]
                                      300265    soundmgr
                                      300266    s6k
                                      300267    aims_referenced_
                                                text_processor
                                      300268    xess
                                      300269    ds_queue
                                      300270    [unknown]
                                      300271    orionscanplus
                                      300272    openlink-xx
                                      300273    kbmsprog
                                      300274    [unknown]
                                      300275    futuresource
                                      300276    the_xprt
                                      300277    cmg_srvprog
                                      300278    [unknown]
                                      300279    [unknown]
                                      300280    front



Thurlow                     Standards Track                    [Page 40]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      300281    [unknown]
                                      300282    [unknown]
                                      300283    [unknown]
                                      300284    conmanprog
                                      300285    jincv2
                                      300286    isls
                                      300287    systemstatprog
                                      300288    fxpsprog
                                      300289    callpath
                                      300290    axess
                                      300291    armor_rpcd
                                      300292    armor_dictionary_rpcd
                                      300293    armor_miscd
                                      300294    filetransfer_prog
                                      300295    bl_swda
                                      300296    bl_hwda
                                      300297    [unknown]
                                      300298    [unknown]
                                      300299    [unknown]
                                      300300    filemon
                                      300301    acunetprog
                                      300302    rbuild
                                      300303    assistprog
                                      300304    tog
                                      300305    [unknown]
                                      300306    sns7000
                                      300307    igprog
                                      300308    tgprog
                                      300309    plc
                                      300310    pxman pxlsprog
                                      300311    hde_server hdeserver
                                      300312    tsslicenseprog
                                      300313    rpc.explorerd
                                      300314    chrd
                                      300315    tbisam
                                      300316    tbis
                                      300317    adsprog
                                      300318    sponsorprog
                                      300319    querycmprog
                                      300320    [unknown]
                                      300321    [unknown]
                                      300322    mobil1
                                      300323    sld
                                                service_locator_daemon
                                      300324    linkprog
                                      300325    codexdaemonprog
                                      300326    drprog
                                      300327    ressys_commands



Thurlow                     Standards Track                    [Page 41]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      300328    stamp
                                      300329    matlab
                                      300330    sched1d
                                      300331    upcprog
                                      300332    xferbkch
                                      300333    xfer
                                      300334    qbthd
                                      300335    qbabort
                                      300336    lsd
                                      300337    geomgrd
                                      300338    generic_fts
                                      300339    ft_ack
                                      300340    lymb
                                      300341    vantage
                                      300342    cltstd clooptstdprog
                                      300343    clui clui_prog
                                      300344    testerd tstdprog
                                      300345    extsim
                                      300346    cmd_dispatch maxm_ems
                                      300347    callpath_receive_program
                                      300348    x3270prog
                                      300349    sbc_lag
                                      300350    sbc_frsa
                                      300351    sbc_frs
                                      300352    atommgr
                                      300353    geostrat
                                      300354    dbvialu6.2
                                      300355    [unknown]
                                      300356    fxncprog
                                      300357    infopolic
                                      300358    [unknown]
                                      300359    aagns
                                      300360    aagms
                                      300361    [unknown]
                                      300362    clariion_mgr
                                      300363    setcimrpc
                                      300364    virtual_protocol_adapter
                                      300365    unibart
                                      300366    uniarch
                                      300367    unifile
                                      300368    unisrex
                                      300369    uniscmd
                                      300370    rsc
                                      300371    set
                                      300372    desaf-ws/key
                                      300373    reeldb
                                      300374    nl
                                      300375    rmd



Thurlow                     Standards Track                    [Page 42]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      300376    agcd
                                      300377    rsynd
                                      300378    rcnlib
                                      300379    rcnlib_attach
                                      300380    evergreen_mgmt_agent
                                      300381    fx104prog
                                      300382    rui
                                                remote_user_interface
                                      300383    ovomd
                                      300384    [unknown]
                                      300385    [unknown]
                                      300386    system_server
                                      300387    pipecs cs_pipeprog
                                                ppktrpc
                                      300388    uv-net univision
                                      300389    auexe
                                      300390    audip
                                      300391    mqi
                                      300392    eva
                                      300393    eeei_reserved_1
                                      300394    eeei_reserved_2
                                      300395    eeei_reserved_3
                                      300396    eeei_reserved_4
                                      300397    eeei_reserved_5
                                      300398    eeei_reserved_6
                                      300399    eeei_reserved_7
                                      300400    eeei_reserved_8
                                      300401    cprlm
                                      300402    wg_idms_manager
                                      300403    timequota
                                      300404    spiff
                                      300405-300414        ov_oem_svc
                                      300415    ov_msg_ctlg_svc
                                      300416    ov_advt_reg_svc
                                      300417-300424  showkron
                                      300425    daatd
                                      300426    swiftnet
                                      300427    ovomdel
                                      300428    ovomreq
                                      300429    msg_dispatcher
                                      300430    pcshare server
                                      300431    rcvs
                                      300432    fdfserver
                                      300433    bssd
                                      300434    drdd
                                      300435    mif_gutsprog
                                      300436    mif_guiprog
                                      300437    twolfd



Thurlow                     Standards Track                    [Page 43]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      300438    twscd
                                      300439    nwsbumv
                                      300440    dgux_mgr
                                      300441    pfxd
                                      300442    tds
                                      300443    ovomadmind
                                      300444    ovomgate
                                      300445    omadmind
                                      300446    nps
                                      300447    npd
                                      300448    tsa
                                      300449    cdaimc
   unassigned                         300450-300452
                                      300453    ckt_implementation
                                      300454    mda-tactical
   unassigned                         300455-300458
                                      300459    atrrun
                                      300460    RoadRunner
                                      300461    nas
                                      300462    undelete
                                      300463    ovacadd
                                      300464    tbdesmai
                                      300465    arguslm
                                      300466    dmd
                                      300467    drd
                                      300468    fm_help
                                      300469    ftransrpc_prog
                                      300470    finrisk
                                      300471    dg_pc_idisched
                                      300472    dg_pc_idiserv
                                      300473    apd
                                      300474    ap_sspd
                                      300475    callpatheventrecorder
                                      300476    flc
                                      300477    dg_osm
                                      300478    dspnamed
                                      300479    iqddsrv
                                      300480    iqjobsrv
                                      300481    tacosxx
                                      300482    wheeldbmg
                                      300483    cnxmgr_nm_prog
                                      300484    cnxmgr_cfg_prog
                                      300485    3dsmapper
                                      300486    ids
                                      300487    imagine_rpc_svc
                                      300488    lfn
                                      300489    salesnet
                                      300490    defaxo



Thurlow                     Standards Track                    [Page 44]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      300491    dbqtsd
                                      300492    kms
                                      300493    rpc.iced
                                      300494    calc2s
                                      300495    ptouidprog
                                      300496    docsls
                                      300497    new
                                      300498    collagebdg
                                      300499    ars_server
                                      300500    ars_client
                                      300501    vr_catalog
                                      300502    vr_tdb
                                      300503    ama
                                      300504    evama
                                      300505    conama
                                      300506    service_process
                                      300507    reuse_proxy
                                      300508    mars_ctrl
                                      300509    mars_db
                                      300510    mars_com
                                      300511    mars_admch
                                      300512    tbpipcip
                                      300513    top_acs_svc
                                      300514    inout_svc
                                      300515    csoft_wp
                                      300516    mcfs
                                      300517    eventprog
                                      300518    dg_pc_idimsg
                                      300519    dg_pc_idiaux
                                      300520    atsr_gc
                                      300521    alarm alarm_prog
                                      300522    fts_prog
                                      300523    dcs_prog
                                      300524    ihb_prog
                                      300525    [unknown]
                                      300526    [unknown]
                                      300527    clu_info_prog
                                      300528    rmfm
                                      300529    c2sdocd
                                      300530    interahelp
                                      300531    callpathasyncmsghandler
                                      300532    optix_arc
                                      300533    optix_ts
                                      300534    optix_wf
                                      300535    maxopenc
                                      300536    cev cev_server
                                      300537    sitewideprog
                                      300538    drs



Thurlow                     Standards Track                    [Page 45]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      300539    drsdm
                                      300540    dasgate
                                      300541    dcdbd
                                      300542    dcpsd
                                      300543    supportlink_prog
                                      300544    broker
                                      300545    listner
                                      300546    multiaccess
                                      300547    spai_interface
                                      300548    spai_adaption
                                      300549    chimera_ci
                                                chimera_clientinterface
                                      300550    chimera_pi
                                                chimera_processinvoker
                                      300551    teamware_fl
                                                teamware_foundationlevel
                                      300552    teamware_sl
                                                teamware_systemlevel
                                      300553    teamware_ui
                                                teamware_userinterface
                                      300554    lprm
                                      300555    mpsprog
                                                Mensuration_Proxy_Server
                                      300556    mo_symdis
                                      300557    retsideprog
                                      300558    slp
                                      300559    slm-api
                                      300560    im_rpc teamconference
                                      300561    license_prog license
                                      300562    stuple stuple_prog
                                      300563    upasswd_prog
                                      300564    gentranmentorsecurity
                                      300565    gentranmentorprovider
                                      300566    latituded
                                                latitude_license_server
                                      300567    gentranmentorreq1
                                      300568    gentranmentorreq2
                                      300569    gentranmentorreq3
                                      300570    rj_server
                                      300571    gws-rdb
                                      300572    gws-mpmd
                                      300573    gws-spmd
                                      300574    vwcalcd
                                      300575    vworad
                                      300576    vwsybd
                                      300577    vwave
                                      300578    online_assistant
                                      300579    internet_assistant



Thurlow                     Standards Track                    [Page 46]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      300580    spawnd
                                      300581    procmgrg
                                      300582    cfgdbd
                                      300583    logutild
                                      300584    ibis
                                      300585    ibisaux
                                      300586    aapi
                                      300587    rstrt
                                      300588    hbeat
                                      300589    pcspu
                                      300590    empress
                                      300591    sched_server
                                                LiveScheduler
                                      300592    path_server
                                                LiveScheduler
                                      300593    c2sdmd
                                      300594    c2scf
                                      300595    btsas
                                      300596    sdtas
                                      300597    appie
                                      300598    dmi
                                      300599    pscd
                                            panther software corp daemon
                                      300600    sisd
                                      300601    cpwebserver
                                      300602    wwcommo
                                      300603    mx-mie
                                      300604    mx-mie-debug
                                      300605    idmn
                                      300606    ssrv
                                      300607    vpnserver
                                      300608    samserver
                                      300609    sams_server
                                      300610    chrysalis
                                      300611    ddm
                                      300612    ddm-is
                                      300613    mx-bcp-debug
                                      300614    upmrd
                                      300615    upmdsd
                                      300616    res
                                      300617    colortron
                                      300618    zrs
                                      300619    afpsrv
                                      300620    apxft
                                      300621    nrp
                                      300622    hpid
                                      300623    mailwatch
                                      300624    fos bc_fcrb_receiver



Thurlow                     Standards Track                    [Page 47]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      300625    cs_sysadmin_svr
                                      300626    cs_controller_svr
                                      300627    nokia_nms_eai
                                      300628    dbg
                                      300629    remex
                                      300630    cs_bind
                                      300631    idm
                                      300632    prpasswd
                                      300633    iw-pw
                                      300634    starrb
                                      300635    Impress_Server
                                      300636    colorstar
                                      300637    gwugui
                                      300638    gwsgui
                                      300639    dai_command_proxy
                                      300640    dai_alarm_server
                                      300641    dai_fui_proxy
                                      300642    spai_command_proxy
                                      300643    spai_alarm_server
                                      300644    iris
                                      300645    hcxttp
                                      300646    updatedb rsched
                                      300647    urnd urn
                                      300648    iqwpsrv
                                      300649    dskutild
                                      300650    online
                                      300651    nlserv
                                      300652    acsm
                                      300653    dg_clar_sormsg
                                      300654    wwpollerrpc
                                      300655    wwmodelrpc
                                      300656    nsprofd
                                      300657    nsdistd
                                      300658    recollect
                                      300659    lssexecd lss_res
                                      300660    lssagend lss_rea
                                      300661    cdinfo
                                      300662    sninsr_addon
                                      300663    mm-sap
                                      300664    ks
                                      300665    psched
                                      300666    tekdvfs
                                      300667    storxll
                                      300668    nisse
                                      300669    lbadvise
                                      300670    atcinstaller
                                      300671    atntstarter
                                      300672    NetML



Thurlow                     Standards Track                    [Page 48]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      300673    tdmesmge
                                      300674    tdmesmgd
                                      300675    tdmesmgt
                                      300676    olm
                                      300677    mediamanagement
                                      300678    rdbprog fieldowsrv
                                      300679    rpwdprog rpwd
                                      300680    sapi-trace
                                      300681    sapi-master-daemon
                                      300682    omdcuprog om-dcu
                                      300683    wwprocmon
                                      300684    tndidprog
                                      300685    rkey_setsecretprog
                                      300686    asdu_server_prog
                                      300687    pwrcntrl
                                      300688    siunixd
                                      300689    wmapi
                                      300690    cross_reference_ole
                                      300691    rtc
                                      300692    disp
                                      300693    sql_compilation_agent
                                      300694    tnsysprog
                                      300695    ius-sapimd
                                      300696    apteam-dx
                                      300697    rmsrpc
                                      300698    seismic_system
                                      300699    remote
                                      300700    tt1_ts_event nokia_nms
                                      300701    fxrs
                                      300702    onlicense
                                      300703    vxkey
                                      300704    dinis
                                      300705    sched2d schedule-2
                                      300706    sched3d schedule-3
                                      300707    sched4d schedule-4
                                      300708    sched5d schedule-5
                                      300709    sched6d schedule-6
                                      300710    sched7d schedule-7
                                      300711    sched8d schedule-8
                                      300712    sched9d schedule-9
                                      300713    adtsqry
                                      300714    adserv
                                      300715    adrepserv
                                      300716    [unknown]
                                      300717    caad
                                      300718    caaui
                                      300719    cescda
                                      300720    vcapiadmin



Thurlow                     Standards Track                    [Page 49]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      300721    vcapi20
                                      300722    tcfs
                                      300723    csed
                                      300724    nothand
                                      300725    hacb
                                      300726    nfauth
                                      300727    imlm
                                      300728    bestcomm
                                      300729    lprpasswd
                                      300730    rprpasswd
                                      300731    proplistd
                                      300732    mikomomc
                                      300733    arepa-cas
                                      300734    [unknown]
                                      300735    [unknown]
                                      300736    ando_ts
                                      300737    intermezzo
                                      300738    ftel-sdh-request
                                      300739    ftel-sdh-response
                                      300740    [unknown]
                                      300741    [unknown]
                                      300742    [unknown]
                                      300743    [unknown]
                                      300744    [unknown]
                                      300745    vrc_abb
                                      300746    vrc_comau
                                      300747    vrc_fanuc
                                      300748    vrc_kuka
                                      300749    vrc_reis
                                      300750    hp_sv6d
                                      300751    correntmgr01
                                      300752    correntike
                                      300753    [unknown]
                                      300754    [unknown]
                                      300755    intransa_location
                                      300756    intransa_management
                                      300757    intransa_federation
                                      300758    portprot
                                      300759    ipmiprot
                                      300760    aceapi
                                      300761    f6000pss
                                      300762    vsmapi_program
                                      300763    ubertuple
                                      300764    ctconcrpcif
                                      300765    mfuadmin
                                      300766    aiols
                                      300767    dsmrootd
                                      300768    htdl



Thurlow                     Standards Track                    [Page 50]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      300769    caba
                                      300770    vrc_cosimir
                                      300771    cmhelmd
                                      300772    polynsm
                                      300773    [unknown]
                                      300774    [unknown]
                                      300775    [unknown]
                                      300776    [unknown]
                                      300777    [unknown]
                                      300778    [unknown]
                                      300779    [unknown]
                                      300780    [unknown]
                                      300781    dsmrecalld
                                      300782    [unknown]
                                      300783    [unknown]
                                      300784    twrgcontrol
                                      300785    twrled
                                      300786    twrcfgdb
   BMC software                       300787-300886
   unassigned                         300887 - 300999
   Sun Microsystems                   301000-302000 [ 2000 numbers ]
   unassigned                         302001-349999
   American Airlines                  350000 - 350999
   Acucobol Inc.                      351000 - 351099
   The Bristol Group                  351100 - 351249
   Amteva Technologies                351250 - 351349
                                      351350    wfmMgmtApp
                                      351351    wfmMgmtDataSrv
                                      351352    wfmMgmtFut1
                                      351353    wfmMgmtFut1
                                      351354    wfmAPM
                                      351355    wfmIAMgr
                                      351356    wfmECMgr
                                      351357    wfmLookOut
                                      351358    wfmAgentFut1
                                      351359    wfmAgentFut2
   unassigned                         351360 - 351406
   Sterling Software ITD              351407    csed
                                      351360    sched10d
                                      351361    sched11d
                                      351362    sched12d
                                      351363    sched13d
                                      351364    sched14d
                                      351365    sched15d
                                      351366    sched16d
                                      351367    sched17d
                                      351368    sched18d
                                      351369    sched19d



Thurlow                     Standards Track                    [Page 51]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      351370    sched20d
                                      351371    sched21d
                                      351372    sched22d
                                      351373    sched23d
                                      351374    sched24d
                                      351375    sched25d
                                      351376    sched26d
                                      351377    sched27d
                                      351378    sched28d
                                      351379    sched29d
                                      351380    sched30d
                                      351381    sched31d
                                      351382    sched32d
                                      351383    sched33d
                                      351384    sched34d
                                      351385    sched35d
                                      351386    sched36d
                                      351387    sched37d
                                      351388    sched38d
                                      351389    sched39d
                                      351390    consoleserver
                                      351391    scheduleserver
                                      351392    RDELIVER
                                      351393    REVENTPROG
                                      351394    RSENDEVENTPROG
                                      351395    snapp
                                      351396    snapad
                                      351397    sdsoodb
                                      351398    sdsmain
                                      351399    sdssrv
                                      351400    sdsclnt
                                      351401    sdsreg
                                      351402    fsbatch
                                      351403    fsmonitor
                                      351404    fsdisp
                                      351405    fssession
                                      351406    fslog
                                      351407    svdpappserv
                                      351408    gns
                                      351409    [unkonwn]
                                      351410    [unkonwn]
                                      351411    [unkonwn]
                                      351412    axi
                                      351413    rpcxfr
                                      351414    slm
                                      351415    smbpasswdd
                                      351416    tbdbserv
                                      351417    tbprojserv



Thurlow                     Standards Track                    [Page 52]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      351418    genericserver
                                      351419    dynarc_ds
                                      351420    dnscmdr
                                      351421    ipcmdr
                                      351422    faild
                                      351423    failmon
                                      351424    faildebug
                                      351425    [unknown]
                                      351426    [unknown]
                                      351427    siemens_srs
                                      351428    bsproxy
                                      351429    ifsrpc
                                      351430    CesPvcSm
                                      351431    FrPvcSm
                                      351432    AtmPvcSm
                                      351433    radius
                                      351434    auditor
                                      351435    sft
                                      351436    voicemail
                                      351437    kis
                                      351438    SOFTSERV_NOTIFY
                                      351439    dynarpc
                                      351440    hc
                                      351441    iopas
                                      351442    iopcs
                                      351443    iopss
                                      351444    spcnfs
                                      351445    spcvss
                                      351446    matilda_sms
                                      351447    matilda_brs
                                      351448    matilda_dbs
                                      351449    matilda_sps
                                      351450    matilda_svs
                                      351451    matilda_sds
                                      351452    matilda_vvs
                                      351453    matilda_stats
                                      351454    xtrade
                                      351455    mapsvr
                                      351456    hp_graphicsd
                                      351457    berkeley_db
                                                berkeley_db_svc
                                      351458    io_server
                                      351459    rpc.niod
                                      351460    rpc.kill
                                      351461    hmdisproxy
                                      351462    smdisproxy
                                      351463    avatard
                                      351464    namu



Thurlow                     Standards Track                    [Page 53]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      351465    BMCSess
                                      351466    FENS_Sport
                                      351467    EM_CONFIG
                                      351468    EM_CONFIG_RESP
                                      351469    lodge_proof
                                      351470    ARCserveIT-Queue
                                      351471    ARCserveIT-Device
                                      351472    ARCserveIT-Discover
                                      351473    ARCserveIT-Alert
                                      351474    ARCserveIT-Database
                                      351475    scand1
                                      351476    scand2
                                      351477    scand3
                                      351478    scand4
                                      351479    scand5
                                      351480    dscv
                                      351481    cb_svc
                                      351482    [unknown]
                                      351483    iprobe
                                      351484    omniconf
                                      351485    isan
   BG Partners                        351486 - 351500
                                      351501    mond
                                      351502    iqlremote
                                      351503    iqlalarm
   unassigned                         351504 - 351599
   Orion Multisystems                 351600-351855
   unassigned                         351856 - 351899
   NSP lab                            351900 - 351999
   unassigned                         351999 - 352232
                                      352233    asautostart
                                      352234    asmediad1
                                      352235    asmediad2
                                      352236    asmediad3
                                      352237    asmediad4
                                      352238    asmediad5
                                      352239    asmediad6
                                      352240    asmediad7
                                      352241    asmediad8
                                      352242    asmediad9
                                      352243    asmediad10
                                      352244    asmediad11
                                      352245    asmediad12
                                      352246    asmediad13
                                      352247    asmediad14
                                      352248    asmediad15
                                      352249    asmediad16
                                      352250    waruser



Thurlow                     Standards Track                    [Page 54]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      352251    warlogd
                                      352252    warsvrmgr
                                      352253    warvfsysd
                                      352254    warftpd
                                      352255    warnfsd
                                      352256    bofproxyc0
                                      352257    bofproxys0
                                      352258    bofproxyc1
                                      352259    bofproxys1
                                      352260    bofproxyc2
                                      352261    bofproxys2
                                      352262    bofproxyc3
                                      352263    bofproxys3
                                      352264    bofproxyc4
                                      352265    bofproxys4
                                      352266    bofproxyc5
                                      352267    bofproxys5
                                      352268    bofproxyc6
                                      352269    bofproxys6
                                      352270    bofproxyc7
                                      352271    bofproxys7
                                      352272    bofproxyc8
                                      352273    bofproxys8
                                      352274    bofproxyc9
                                      352275    bofproxys9
                                      352276    bofproxyca
                                      352277    bofproxysa
                                      352278    bofproxycb
                                      352279    bofproxysb
                                      352280    bofproxycc
                                      352281    bofproxysc
                                      352282    bofproxycd
                                      352283    bofproxysd
                                      352284    bofproxyce
                                      352285    bofproxyse
                                      352286    bofproxycf
                                      352287    bofproxysf
                                      352288    bofproxypo0
                                      352289    bofproxypo1
                                      352290    bofproxypo2
                                      352291    bofproxypo3
                                      352292    bofproxypo4
   unassigned                         352293-370000
                                      370001    [unknown]
                                      370002    [unknown]
                                      370003    [unknown]
                                      370004    [unknown]
                                      370005    [unknown]



Thurlow                     Standards Track                    [Page 55]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      370006    [unknown]
                                      370007    [unknown]
                                      370008    [unknown]
                                      370009    [unknown]
                                      370010    [unknown]
                                      370011    [unknown]
                                      370012    [unknown]
                                      370013    [unknown]
                                      370014    [unknown]
                                      370015    [unknown]
                                      370016    [unknown]
                                      370017    [unknown]
                                      370018    [unknown]
                                      370019    [unknown]
                                      370020    [unknown]
                                      370021    [unknown]
                                      370022    [unknown]
                                      370023    [unknown]
                                      370024    [unknown]
                                      370025    [unknown]
                                      370026    [unknown]
                                      370027    [unknown]
   unassigned                         370028 - 379999
                                      380000    opensna
                                      380001    probenet
                                      380002    [unknown]
                                      380003    license
                                      380004    na.3com-remote
                                      380005    na.ntp
                                      380006    probeutil
                                      380007    na.vlb
                                      380008    cds_mhs_agent
                                      380009    cds_x500_agent
                                      380010    cds_mailhub_agent
                                      380011    codex_6500_proxy
                                      380012    codex_6500_trapd
                                      380013    na.nm212
                                      380014    cds_mta_metrics_agent
                                      380015    [unkonwn]
                                      380016    na.caple
                                      380017    codexcapletrap
   Swiss Re                           380018-380028
                                      380029    ncstat
                                      380030    ncnfsstat
                                      380031    ftams
                                      380032    na.isotp
                                      380033    na.rfc1006
   unassigned                         380034 - 389999



Thurlow                     Standards Track                    [Page 56]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


   Epoch Systems                      390000 - 390049
   Quickturn Systems                  390050 - 390065
   Team One Systems                   390066 - 390075
   General Electric CRD               390076 - 390085
   TSIG NFS subcommittee              390086 - 390089
   SoftLab ab                         390090 - 390099
   Legato Network Services            390100 - 390115
                                      390116    cdsmonitor
                                      390117    cdslock
                                      390118    cdslicense
                                      390119    shm
                                      390120    rws
                                      390121    cdc
   Data General                       390122 - 390141
   Perfect Byte                       390142 - 390171
   JTS Computer Systems               390172 - 390181
   Parametric Technology              390182 - 390191
   Voxem                              390192 - 390199
   Effix Systems                      390200 - 390299
   Motorola                           390300 - 390309
   Mobile Data Intl.                  390310 - 390325
   Physikalisches Institut            390326 - 390330
   Ergon Informatik AG                390331 - 390340
   Analog Devices Inc.                390341 - 390348
   Interphase Corporation             390349 - 390358
   NeWsware                           390359 - 390374
   Qualix Group                       390375 - 390379
   Xerox Imaging Systems              390380 - 390389
   Noble Net                          390390 - 390399
   Legato Network Services            390400 - 390499
   Client Server Tech.                390500 - 390511
   Atria                              390512 - 390517
   GE NMR Instruments                 390518 - 390525
   Harris Corp.                       390526 - 390530
   Unisys                             390531 - 390562
   Aggregate Computing                390563 - 390572
   Interactive Data                   390573 - 390580
   OKG AB                             390581 - 390589
   K2 Software                        390591 - 390594
   Collier Jackson                    390595 - 390599
   Remedy Corporation                 390600 - 390699
   Mentor Graphics                    390700 - 390799
   AT&T Bell Labs (Lucent)            390800 - 390899
   Xerox                              390900 - 390999
   Silicon Graphics                   391000 - 391063
   Data General                       391064 - 391095
   Computer Support Corp.             391096 - 391099
   Quorum Software Systems            391100 - 391199



Thurlow                     Standards Track                    [Page 57]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


   InterLinear Technology             391200 - 391209
   Highland Software                  391210 - 391229
   Boeing Comp. Svcs.                 391230 - 391249
   IBM Sweden                         391250 - 391259
   Signature Authority Svc            391260 - 391271
   ZUMTOBEL Licht GmbH                391272 - 391283
   NOAA/ERL                           391284 - 391299
   NCR Corp.                          391300 - 391399
   FTP Software                       391400 - 391409
   Cadre Technologies                 391410 - 391433
   Visionware Ltd (UK)                391434 - 391439
   IBR-Partner AG                     391440 - 391449
   CAP Programator AB                 391450 - 391459
   Reichle+De-Massari AG              391460 - 391474
   Swiss Bank Corp (London)           391475 - 391484
   Unisys Enterprise Svr              391485 - 391489
   Intel - Test Dev. Tech.            391490 - 391499
   Ampex                              391500 - 391755
                                      391756    naas-spare
                                      391757    naas-admin
                                      391758    isps
                                      391759    isps-admin
                                      391760    mars
                                      391761    mars-admin
                                      391762    attcis_spare0
                                      391763    attcis_spare1
                                      391764    mail-server
                                      391765    mail-server-spare
                                      391766    attcis_spare2
                                      391767    attcis_spare3
                                      391768    attcis_spare4
                                      391769    attcis_spare5
                                      391770    attcis_spare6
                                      391771    attcis_spare7
   Integrated Systems, Inc.           391772 - 391779
   Parametric Tech., Inc.             391780 - 391789
   Ericsson Telecom AB                391790 - 391799
   SLAC                               391800 - 391849
                                      391850    qhrdata
                                      391851    qhrbackup
                                      391852    minutedata
                                      391853    prefecture
                                      391854    supc
                                      391855    suadmincrw
                                      391856    suadminotas
                                      391857    sumessage
                                      391858    sublock
                                      391859    sumotd



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RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


   staffware dev. (uk)                391860 - 391869
   Staffware Dev. (UK)                391870 - 391879
                                      391880    namesrvr
                                      391881    disksrvr
                                      391882    tapesrvr
                                      391883    migsrvr
                                      391884    pdmsrvr
                                      391885    pvrsrvr
                                      391886    repacksrvr
                                      391887    [unknown]
   Convex Computer Corp.              391888 - 391951
                                      391952    lookoutsrv
                                      391953    lookoutagnt
                                      391954    lookoutprxy
                                      391955    lookoutsnmp
                                      391956    lookoutrmon
                                      391957    lookoutfut1
                                      391958    lookoutfut2
   windward                           391959 - 391967
                                      391968    sra_legato
                                      391969    sra_legato_imgsvr
                                      391970    sra_legato_0
                                      391971    sra_legato_1
                                      391972    sra_legato_2
                                      391973    sra_legato_3
                                      391974    sra_legato_4
                                      391975    sra_legato_5
                                      391976    sra_legato_6
                                      391977    sra_legato_7
                                      391978    sra_legato_8
                                      391979    sra_legato_9
   Brooktree Corp.                    391980 - 391989
   Cadence        Design Systems      391990 - 391999
   J. Frank & Associates              392000 - 392999
   Cooperative Solutions              393000 - 393999
   Xerox Corp.                        394000 - 395023
                                      395024    odbc_sqlretriever
   3M                                 395025 - 395091
   Digital Zone Intl.                 395092 - 395099
   Software Professionals             395100 - 395159
   Del Mar Solutions                  395160 - 395164
                                      395165    ife-es
                                      395166    ife-resmgr
                                      395167    ife-aes
                                      395168    ife-bite
                                      395169    ife-loader
                                      395170    ife-satcom
                                      395171    ife-seat



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RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


                                      395172    ife-dbmgr
                                      395173    ife-testmgr
                                      395174    atrium_server
                                      395175    ase_director
                                      395176    ase_agent
                                      395177    ase_hsm
                                      395178    ase_mgr
                                      395179    ase_sim
   Hewlett-Packard                    395180 - 395194
   XES, Inc.                          395195 - 395199
   Unitech Products                   395200 - 395249
   TransSys                           395250 - 395505
   Unisys Govt Systems                395506 - 395519
   Bellcore                           395520 - 395529
   IBM                                395530 - 395561
   AT&T Network Services              395562 - 395571
   Data General                       395572 - 395577
   Swiss Bank Corp                    395578 - 395597
   Swiss Bank Corp                    395598 - 395637
   Novell                             395638 - 395643
   Computer Associates                395644 - 395650
   Omneon Video Networks              395651 - 395656
   unassigned                         395657 - 395908
   UK Post Office                     395909 - 395924
   AEROSPATIALE                       395925 - 395944
   Result d.o.o.                      395945 - 395964
   DataTools, Inc.                    395965 - 395980
   CADIS, Inc.                        395981 - 395990
   Cummings Group, Inc.               395991 - 395994
   Cadre Technologies                 395995 - 395999
   American Airlines                  396000 - 396999
   Ericsson Telecom TM Div            397000 - 398023
   IBM                                398024 - 398028
   Toshiba OME Works                  398029 - 398033
   TUSC Computer Systems              398034 - 398289
   AT&T                               398290 - 398320
   Ontario Hydro                      398321 - 398346
   Micrion Corporation                398347 - 398364
   unassigned                         398365 - 398591
   Pegasystems, Inc.                  398592 - 399616
   Spectra Securities Soft            399617 - 399850
   QualCom                            399851 - 399866
   unassigned                         399867 - 399884
   Altris Software Ltd.               399885 - 399899
   ISO/IEC WG11                       399900 - 399919
   Parametric Technology              399920 - 399949
   Dolby Laboratories                 399950 - 399981
   unassigned                         399982 - 399991



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RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


   Xerox PARC                         399992 - 399999
   #
   Next Inc.                          200100000 - 200199999
   Netwise (RPCtool)                  200200000
   Concurrent Computer Corp           200200001 - 200200007
   AIM Technology                     200300000 - 200399999
   TGV                                200400000 - 200499999
   #
   # Sun-assigned authentication flavor numbers
   #
   AUTH_NONE       0               /* no authentication, see RFC 1831 */
                                   /* a.k.a. AUTH_NULL */
   AUTH_SYS        1               /* unix style (uid+gids), RFC 1831 */
                                   /* a.k.a. AUTH_UNIX */
   AUTH_SHORT      2               /* short hand unix style, RFC 1831 */
   AUTH_DH         3               /* des style (encrypted timestamp) */
                                   /* a.k.a. AUTH_DES, see RFC 2695 */
   AUTH_KERB       4               /* kerberos auth, see RFC 2695 */
   AUTH_RSA        5               /* RSA authentication */
   RPCSEC_GSS      6               /* GSS-based RPC security for auth,
                                      integrity and privacy, RPC 5403 */

   AUTH_NW         30001           NETWARE
   AUTH_SEC        200000          TSIG NFS subcommittee
   AUTH_ESV        200004          SVr4 ES

   AUTH_NQNFS      300000          Univ. of Guelph - Not Quite NFS
   AUTH_GSSAPI     300001          OpenVision <john.linn@ov.com>
   AUTH_ILU_UGEN   300002          Xerox <janssen@parc.xerox.com>
                                    - ILU Unsecured Generic Identity
   #
   #  Small blocks are assigned out of the 39xxxx series of numbers
   #
   AUTH_SPNEGO     390000
                   390000 - 390255 NFS 'pseudo' flavors for RPCSEC_GSS
                   390003 - kerberos_v5 authentication, RFC 2623
                   390004 - kerberos_v5 with data integrity, RFC 2623
                   390005 - kerberos_v5 with data privacy, RFC 2623

                   200000000       Reserved
                   200100000       NeXT Inc.










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RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


Normative References

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119, March 1997.

   [RFC2203]  Eisler, M., Chiu, A., and L. Ling, "RPCSEC_GSS Protocol
              Specification", RFC 2203, September 1997.

   [RFC4506]  Eisler, M., Ed., "XDR: External Data Representation
              Standard", STD 67, RFC 4506, May 2006.

Informative References

   [DH]       Diffie & Hellman, "New Directions in Cryptography", IEEE
              Transactions on Information Theory IT-22, November 1976.

   [RFC0768]   Postel, J., "User Datagram Protocol", STD 6, RFC 768,
              August 1980.

   [RFC0793]  Postel, J., "Transmission Control Protocol", STD 7, RFC
              793, September 1981.

   [RFC1094]  Sun Microsystems, "NFS: Network File System Protocol
              specification", RFC 1094, March 1989.

   [RFC1813]  Callaghan, B., Pawlowski, B., and P. Staubach, "NFS
              Version 3 Protocol Specification", RFC 1813, June 1995.

   [RFC1831]  Srinivasan, R., "RPC: Remote Procedure Call Protocol
              Specification Version 2", RFC 1831, August 1995.

   [RFC1833]  Srinivasan, R., "Binding Protocols for ONC RPC Version 2",
              RFC 1833, August 1995.

   [RFC2623]  Eisler, M., "NFS Version 2 and Version 3 Security Issues
              and the NFS Protocol's Use of RPCSEC_GSS and Kerberos V5",
              RFC 2623, June 1999.

   [RFC2695]  Chiu, A., "Authentication Mechanisms for ONC RPC", RFC
              2695, September 1999.

   [RFC2743]  Linn, J., "Generic Security Service Application Program
              Interface Version 2, Update 1", RFC 2743, January 2000.

   [RFC3530]  Shepler, S., Callaghan, B., Robinson, D., Thurlow, R.,
              Beame, C., Eisler, M., and D. Noveck, "Network File System
              (NFS) version 4 Protocol", RFC 3530, April 2003.




Thurlow                     Standards Track                    [Page 62]

RFC 5531        Remote Procedure Call Protocol Version 2        May 2009


   [RFC5226]  Narten, T. and H. Alvestrand, "Guidelines for Writing an
              IANA Considerations Section in RFCs", BCP 26, RFC 5226,
              May 2008.

   [VMTP]     Cheriton, D., "VMTP: Versatile Message Transaction
              Protocol", Preliminary Version 0.3, Stanford University,
              January 1987.

   [XRPC]     Birrell, A. D.  & B. J. Nelson, "Implementing Remote
              Procedure Calls", XEROX CSL-83-7, October 1983.

Author's Address

   Robert Thurlow
   Sun Microsystems, Inc.
   500 Eldorado Boulevard, UBRM05-171
   Broomfield, CO 80021

   Phone: 877-718-3419
   EMail: robert.thurlow@sun.com































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