[Docs] [txt|pdf]

Obsoleted by: 1920 HISTORIC

Network Working Group                        Internet Architecture Board
Request for Comments: 1880                             J. Postel, Editor
Obsoletes: 1800, 1780, 1720, 1610,                         November 1995
1600, 1540, 1500, 1410, 1360, 1280,
1250, 1200, 1140, 1130, 1100, 1083
STD: 1
Category: Standards Track


                  INTERNET OFFICIAL PROTOCOL STANDARDS


Status of this Memo

   This memo describes the state of standardization of protocols used in
   the Internet as determined by the Internet Architecture Board (IAB).
   This memo is an Internet Standard.  Distribution of this memo is
   unlimited.

Table of Contents

   Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 2
   1.  The Standardization Process  . . . . . . . . . . . . . . . . 3
   2.  The Request for Comments Documents . . . . . . . . . . . . . 5
   3.  Other Reference Documents  . . . . . . . . . . . . . . . . . 6
   3.1.  Assigned Numbers . . . . . . . . . . . . . . . . . . . . . 6
   3.2.  Gateway Requirements . . . . . . . . . . . . . . . . . . . 6
   3.3.  Host Requirements  . . . . . . . . . . . . . . . . . . . . 6
   3.4.  The MIL-STD Documents  . . . . . . . . . . . . . . . . . . 6
   4.  Explanation of Terms . . . . . . . . . . . . . . . . . . . . 8
   4.1.  Definitions of Protocol State (Maturity Level) . . . . . . 9
   4.1.1.  Standard Protocol  . . . . . . . . . . . . . . . . . . . 9
   4.1.2.  Draft Standard Protocol  . . . . . . . . . . . . . . . . 9
   4.1.3.  Proposed Standard Protocol . . . . . . . . . . . . . . . 9
   4.1.4.  Experimental Protocol  . . . . . . . . . . . . . . . . . 9
   4.1.5.  Informational Protocol . . . . . . . . . . . . . . . .  10
   4.1.6.  Historic Protocol  . . . . . . . . . . . . . . . . . .  10
   4.2.  Definitions of Protocol Status (Requirement Level) . . .  10
   4.2.1.  Required Protocol  . . . . . . . . . . . . . . . . . .  10
   4.2.2.  Recommended Protocol . . . . . . . . . . . . . . . . .  10
   4.2.3.  Elective Protocol  . . . . . . . . . . . . . . . . . .  10
   4.2.4.  Limited Use Protocol . . . . . . . . . . . . . . . . .  10
   4.2.5.  Not Recommended Protocol . . . . . . . . . . . . . . .  10
   5.  The Standards Track  . . . . . . . . . . . . . . . . . . .  11
   5.1.  The RFC Processing Decision Table  . . . . . . . . . . .  11
   5.2.  The Standards Track Diagram  . . . . . . . . . . . . . .  12
   6.  The Protocols  . . . . . . . . . . . . . . . . . . . . . .  14
   6.1.  Recent Changes . . . . . . . . . . . . . . . . . . . . .  14



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   6.1.1.  New RFCs . . . . . . . . . . . . . . . . . . . . . . .  14
   6.1.2.  Other Changes  . . . . . . . . . . . . . . . . . . . .  19
   6.2.  Standard Protocols . . . . . . . . . . . . . . . . . . .  20
   6.3.  Network-Specific Standard Protocols  . . . . . . . . . .  22
   6.4.  Draft Standard Protocols . . . . . . . . . . . . . . . .  23
   6.5.  Proposed Standard Protocols  . . . . . . . . . . . . . .  24
   6.6.  Telnet Options . . . . . . . . . . . . . . . . . . . . .  28
   6.7.  Experimental Protocols . . . . . . . . . . . . . . . . .  29
   6.8.  Informational Protocols  . . . . . . . . . . . . . . . .  31
   6.9.  Historic Protocols . . . . . . . . . . . . . . . . . . .  32
   6.10  Obsolete Protocols . . . . . . . . . . . . . . . . . . .  33
   7.  Contacts . . . . . . . . . . . . . . . . . . . . . . . . .  34
   7.1.  IAB, IETF, and IRTF Contacts . . . . . . . . . . . . . .  34
   7.1.1.  Internet Architecture Board (IAB) Contact  . . . . . .  34
   7.1.2.  Internet Engineering Task Force (IETF) Contact . . . .  34
   7.1.3.  Internet Research Task Force (IRTF) Contact  . . . . .  35
   7.2.  Internet Assigned Numbers Authority (IANA) Contact . . .  36
   7.3.  Request for Comments Editor Contact  . . . . . . . . . .  37
   7.4.  Network Information Center Contact . . . . . . . . . . .  37
   7.5.  Sources for Requests for Comments  . . . . . . . . . . .  38
   8.  Security Considerations  . . . . . . . . . . . . . . . . .  38
   9.  Author's Address . . . . . . . . . . . . . . . . . . . . .  38

Introduction

   A discussion of the standardization process and the RFC document
   series is presented first, followed by an explanation of the terms.
   Sections 6.2 - 6.10 contain the lists of protocols in each stage of
   standardization.  Finally are pointers to references and contacts for
   further information.

   This memo is intended to be issued approximately quarterly; please be
   sure the copy you are reading is current.  Current copies may be
   obtained from the Network Information Center (INTERNIC) or from the
   Internet Assigned Numbers Authority (IANA) (see the contact
   information at the end of this memo).  Do not use this edition after
   1-March-96.

   See Section 6.1 for a description of recent changes.  In the official
   lists in sections 6.2 - 6.10, an asterisk (*) next to a protocol
   denotes that it is new to this document or has been moved from one
   protocol level to another, or differs from the previous edition of
   this document.








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1.  The Standardization Process

   The Internet Architecture Board maintains this list of documents that
   define standards for the Internet protocol suite.  See RFC-1601 for
   the charter of the IAB and RFC-1160 for an explanation of the role
   and organization of the IAB and its subsidiary groups, the Internet
   Engineering Task Force (IETF) and the Internet Research Task Force
   (IRTF).  Each of these groups has a steering group called the IESG
   and IRSG, respectively.  The IETF develops these standards with the
   goal of co-ordinating the evolution of the Internet protocols; this
   co-ordination has become quite important as the Internet protocols
   are increasingly in general commercial use.  The definitive
   description of the Internet standards process is found in RFC-1602.

   The majority of Internet protocol development and standardization
   activity takes place in the working groups of the IETF.

   Protocols which are to become standards in the Internet go through a
   series of states or maturity levels (proposed standard, draft
   standard, and standard) involving increasing amounts of scrutiny and
   testing.  When a protocol completes this process it is assigned a STD
   number (see RFC-1311).  At each step, the Internet Engineering
   Steering Group (IESG) of the IETF must make a recommendation for
   advancement of the protocol.

   To allow time for the Internet community to consider and react to
   standardization proposals, a minimum delay of 6 months before a
   proposed standard can be advanced to a draft standard and 4 months
   before a draft standard can be promoted to standard.

   It is general practice that no proposed standard can be promoted to
   draft standard without at least two independent implementations (and
   the recommendation of the IESG).  Promotion from draft standard to
   standard generally requires operational experience and demonstrated
   interoperability of two or more implementations (and the
   recommendation of the IESG).

   In cases where there is uncertainty as to the proper decision
   concerning a protocol a special review committee may be appointed
   consisting of experts from the IETF, IRTF and the IAB with the
   purpose of recommending an explicit action.

   Advancement of a protocol to proposed standard is an important step
   since it marks a protocol as a candidate for eventual standardization
   (it puts the protocol "on the standards track").  Advancement to
   draft standard is a major step which warns the community that, unless
   major objections are raised or flaws are discovered, the protocol is
   likely to be advanced to standard in six months.



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   Some protocols have been superseded by better ones or are otherwise
   unused.  Such protocols are still documented in this memorandum with
   the designation "historic".

   Because it is useful to document the results of early protocol
   research and development work, some of the RFCs document protocols
   which are still in an experimental condition.  The protocols are
   designated "experimental" in this memorandum.  They appear in this
   report as a convenience to the community and not as evidence of their
   standardization.

   Other protocols, such as those developed by other standards
   organizations, or by particular vendors, may be of interest or may be
   recommended for use in the Internet.  The specifications of such
   protocols may be published as RFCs for the convenience of the
   Internet community.  These protocols are labeled "informational" in
   this memorandum.

   In addition to the working groups of the IETF, protocol development
   and experimentation may take place as a result of the work of the
   research groups of the Internet Research Task Force, or the work of
   other individuals interested in Internet protocol development.  The
   the documentation of such experimental work in the RFC series is
   encouraged, but none of this work is considered to be on the track
   for standardization until the IESG has made a recommendation to
   advance the protocol to the proposed standard state.

   A few protocols have achieved widespread implementation without the
   approval of the IESG.  For example, some vendor protocols have become
   very important to the Internet community even though they have not
   been recommended by the IESG.  However, the IAB strongly recommends
   that the standards process be used in the evolution of the protocol
   suite to maximize interoperability (and to prevent incompatible
   protocol requirements from arising).  The use of the terms
   "standard", "draft standard", and "proposed standard" are reserved in
   any RFC or other publication of Internet protocols to only those
   protocols which the IESG has approved.

   In addition to a state (like "Proposed Standard"), a protocol is also
   assigned a status, or requirement level, in this document.  The
   possible requirement levels ("Required", "Recommended", "Elective",
   "Limited Use", and "Not Recommended") are defined in Section 4.2.
   When a protocol is on the standards track, that is in the proposed
   standard, draft standard, or standard state (see Section 5), the
   status shown in Section 6 is the current status.

   Few protocols are required to be implemented in all systems; this is
   because there is such a variety of possible systems, for example,



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   gateways, routers, terminal servers, workstations, and multi-user
   hosts.  The requirement level shown in this document is only a one
   word label, which may not be sufficient to characterize the
   implementation requirements for a protocol in all situations.  For
   some protocols, this document contains an additional status paragraph
   (an applicability statement).  In addition, more detailed status
   information may be contained in separate requirements documents (see
   Section 3).

2.  The Request for Comments Documents

   The documents called Request for Comments (or RFCs) are the working
   notes of the "Network Working Group", that is the Internet research
   and development community.  A document in this series may be on
   essentially any topic related to computer communication, and may be
   anything from a meeting report to the specification of a standard.

   Notice:

      All standards are published as RFCs, but not all RFCs specify
      standards.

   Anyone can submit a document for publication as an RFC.  Submissions
   must be made via electronic mail to the RFC Editor (see the contact
   information at the end of this memo, and see RFC 1543).

   While RFCs are not refereed publications, they do receive technical
   review from the task forces, individual technical experts, or the RFC
   Editor, as appropriate.

   The RFC series comprises a wide range of documents, ranging from
   informational documents of general interests to specifications of
   standard Internet protocols.  In cases where submission is intended
   to document a proposed standard, draft standard, or standard
   protocol, the RFC Editor will publish the document only with the
   approval of the IESG.  For documents describing experimental work,
   the RFC Editor will notify the IESG before publication, allowing for
   the possibility of review by the relevant IETF working group or IRTF
   research group and provide those comments to the author.  See Section
   5.1 for more detail.

   Once a document is assigned an RFC number and published, that RFC is
   never revised or re-issued with the same number.  There is never a
   question of having the most recent version of a particular RFC.
   However, a protocol (such as File Transfer Protocol (FTP)) may be
   improved and re-documented many times in several different RFCs.  It
   is important to verify that you have the most recent RFC on a
   particular protocol.  This "Internet Official Protocol Standards"



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   memo is the reference for determining the correct RFC for the current
   specification of each protocol.

   The RFCs are available from the INTERNIC, and a number of other
   sites.  For more information about obtaining RFCs, see Sections 7.4
   and 7.5.

3.  Other Reference Documents

   There are three other reference documents of interest in checking the
   current status of protocol specifications and standardization.  These
   are the Assigned Numbers, the Gateway Requirements, and the Host
   Requirements.  Note that these documents are revised and updated at
   different times; in case of differences between these documents, the
   most recent must prevail.

   Also, one should be aware of the MIL-STD publications on IP, TCP,
   Telnet, FTP, and SMTP.  These are described in Section 3.4.

3.1.  Assigned Numbers

   The "Assigned Numbers" document lists the assigned values of the
   parameters used in the various protocols.  For example, IP protocol
   codes, TCP port numbers, Telnet Option Codes, ARP hardware types, and
   Terminal Type names.  Assigned Numbers was most recently issued as
   RFC-1700.

3.2.  Requirements for IP Version 4 Routers

   This document reviews the specifications that apply to gateways and
   supplies guidance and clarification for any ambiguities.
   Requirements for IP Version 4 Routers is RFC-1812.

3.3.  Host Requirements

   This pair of documents reviews and updates the specifications that
   apply to hosts, and it supplies guidance and clarification for any
   ambiguities.  Host Requirements was issued as RFC-1122 and RFC-1123.

3.4.  The MIL-STD Documents

   The Internet community specifications for IP (RFC-791) and TCP (RFC-
   793) and the DoD MIL-STD specifications are intended to describe
   exactly the same protocols.  Any difference in the protocols
   specified by these sets of documents should be reported to DISA and
   to the IESG.  It is strongly advised that the two sets of documents
   be used together, along with RFC-1122 and RFC-1123.




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   Note that these MIL-STD are now somewhat out of date.  The
   Requirements for IP Version 4 Routers (RFC-1812) and Host
   Requirements (RFC-1122, RFC-1123) take precedence over both earlier
   RFCs and the MIL-STDs.

          2045-13501 Internet Routing between Autonomous Systems

          2045-14502-01 Internet Transport Profile for DoD
          Communications, Part 1: Transport and Internet Services

          2045-14502-04 Internet Transport Profile for DoD
          Communications, Part 4: LAN Media-Independent Requirements

          2045-14503 Internet Transport Service Supporting OSI
          Applications

          2045-44500 Tactical Communications

          2045-17503-01 Internet Message Transfer Profile for DoD
          Communications Part 1: Simple Mail Transfer Protocol

          2045-17503-02 Internet Message Transfer Profile for DoD
          Communications Part 2: Format of Text Messages

          2045-17504 Internet File Transfer Profile for DoD
          Communications

          2045-17505 Internet Domain Name Service (DNS) Profile for DoD
          Communications

          2045-17506 Internet Remote Login (RLOGIN) Profile for DoD
          Communications

          2045-17507 Internet Network Management Profile for DoD
          Communications

          2045-38000 DoD Network Management for DoD Communications

   These documents are available from the Naval Publications and Forms
   Center.  Requests can be initiated by telephone, telegraph, or mail;
   however, it is preferred that private industry use form DD1425, if
   possible.

          Naval Publications and Forms Center, Code 3015
          5801 Tabor Ave
          Philadelphia, PA 19120
          Phone: 1-215-697-3321 (order tape)
                 1-215-697-4834 (conversation)



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RFC 1880                   Internet Standards              November 1995


4.  Explanation of Terms

   There are two independent categorization of protocols.  The first is
   the "maturity level" or STATE of standardization, one of "standard",
   "draft standard", "proposed standard", "experimental",
   "informational" or "historic".  The second is the "requirement level"
   or STATUS of this protocol, one of "required", "recommended",
   "elective", "limited use", or "not recommended".

   The status or requirement level is difficult to portray in a one word
   label.  These status labels should be considered only as an
   indication, and a further description, or applicability statement,
   should be consulted.

   When a protocol is advanced to proposed standard or draft standard,
   it is labeled with a current status.

   At any given time a protocol occupies a cell of the following matrix.
   Protocols are likely to be in cells in about the following
   proportions (indicated by the relative number of Xs).  A new protocol
   is most likely to start in the (proposed standard, elective) cell, or
   the (experimental, limited use) cell.

                             S T A T U S
                     Req   Rec   Ele   Lim   Not
                   +-----+-----+-----+-----+-----+
           Std     |  X  | XXX | XXX |     |     |
       S           +-----+-----+-----+-----+-----+
           Draft   |  X  |  X  | XXX |     |     |
       T           +-----+-----+-----+-----+-----+
           Prop    |     |  X  | XXX |     |     |
       A           +-----+-----+-----+-----+-----+
           Info    |     |     |     |     |     |
       T           +-----+-----+-----+-----+-----+
           Expr    |     |     |     | XXX |     |
       E           +-----+-----+-----+-----+-----+
           Hist    |     |     |     |     | XXX |
                   +-----+-----+-----+-----+-----+

   What is a "system"?

      Some protocols are particular to hosts and some to gateways; a few
      protocols are used in both.  The definitions of the terms below
      will refer to a "system" which is either a host or a gateway (or
      both).  It should be clear from the context of the particular
      protocol which types of systems are intended.





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4.1.  Definitions of Protocol State

   Every protocol listed in this document is assigned to a "maturity
   level" or STATE of standardization: "standard", "draft standard",
   "proposed standard", "experimental", or "historic".

   4.1.1.  Standard Protocol

      The IESG has established this as an official standard protocol for
      the Internet.  These protocols are assigned STD numbers (see RFC-
      1311).  These are separated into two groups: (1) IP protocol and
      above, protocols that apply to the whole Internet; and (2)
      network-specific protocols, generally specifications of how to do
      IP on particular types of networks.

   4.1.2.  Draft Standard Protocol

      The IESG is actively considering this protocol as a possible
      Standard Protocol.  Substantial and widespread testing and comment
      are desired.  Comments and test results should be submitted to the
      IESG.  There is a possibility that changes will be made in a Draft
      Standard Protocol before it becomes a Standard Protocol.

   4.1.3.  Proposed Standard Protocol

      These are protocol proposals that may be considered by the IESG
      for standardization in the future.  Implementation and testing by
      several groups is desirable.  Revision of the protocol
      specification is likely.

   4.1.4.  Experimental Protocol

      A system should not implement an experimental protocol unless it
      is participating in the experiment and has coordinated its use of
      the protocol with the developer of the protocol.

      Typically, experimental protocols are those that are developed as
      part of an ongoing research project not related to an operational
      service offering.  While they may be proposed as a service
      protocol at a later stage, and thus become proposed standard,
      draft standard, and then standard protocols, the designation of a
      protocol as experimental may sometimes be meant to suggest that
      the protocol, although perhaps mature, is not intended for
      operational use.







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   4.1.5.  Informational Protocol

      Protocols developed by other standard organizations, or vendors,
      or that are for other reasons outside the purview of the IESG, may
      be published as RFCs for the convenience of the Internet community
      as informational protocols.

   4.1.6.  Historic Protocol

      These are protocols that are unlikely to ever become standards in
      the Internet either because they have been superseded by later
      developments or due to lack of interest.

4.2.  Definitions of Protocol Status

      This document lists a "requirement level" or STATUS for each
      protocol.  The status is one of "required", "recommended",
      "elective", "limited use", or "not recommended".

   4.2.1.  Required Protocol

      A system must implement the required protocols.

   4.2.2.  Recommended Protocol

      A system should implement the recommended protocols.

   4.2.3.  Elective Protocol

      A system may or may not implement an elective protocol. The
      general notion is that if you are going to do something like this,
      you must do exactly this.  There may be several elective protocols
      in a general area, for example, there are several electronic mail
      protocols, and several routing protocols.

   4.2.4.  Limited Use Protocol

      These protocols are for use in limited circumstances.  This may be
      because of their experimental state, specialized nature, limited
      functionality, or historic state.

   4.2.5.  Not Recommended Protocol

      These protocols are not recommended for general use.  This may be
      because of their limited functionality, specialized nature, or
      experimental or historic state.





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5.  The Standards Track

   This section discusses in more detail the procedures used by the RFC
   Editor and the IESG in making decisions about the labeling and
   publishing of protocols as standards.

5.1.  The RFC Processing Decision Table

   Here is the current decision table for processing submissions by the
   RFC Editor.  The processing depends on who submitted it, and the
   status they want it to have.

      +==========================================================+
      |**************|               S O U R C E                 |
      +==========================================================+
      | Desired      |    IAB   |   IESG   |   IRSG   |  Other   |
      | Status       |          |          |          |          |
      +==========================================================+
      |              |          |          |          |          |
      | Standard     |  Bogus   |  Publish |  Bogus   |  Bogus   |
      | or           |   (2)    |   (1)    |   (2)    |   (2)    |
      | Draft        |          |          |          |          |
      | Standard     |          |          |          |          |
      +--------------+----------+----------+----------+----------+
      |              |          |          |          |          |
      |              |  Refer   |  Publish |  Refer   |  Refer   |
      | Proposed     |   (3)    |   (1)    |   (3)    |   (3)    |
      | Standard     |          |          |          |          |
      |              |          |          |          |          |
      +--------------+----------+----------+----------+----------+
      |              |          |          |          |          |
      |              |  Notify  |  Publish |  Notify  |  Notify  |
      | Experimental |   (4)    |   (1)    |   (4)    |   (4)    |
      | Protocol     |          |          |          |          |
      |              |          |          |          |          |
      +--------------+----------+----------+----------+----------+
      |              |          |          |          |          |
      | Information  |  Publish |  Publish |Discretion|Discretion|
      | or Opinion   |   (1)    |   (1)    |   (5)    |   (5)    |
      | Paper        |          |          |          |          |
      |              |          |          |          |          |
      +==========================================================+

      (1) Publish.

      (2) Bogus.  Inform the source of the rules.  RFCs specifying
          Standard, or Draft Standard must come from the IESG, only.




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      (3) Refer to an Area Director for review by a WG.  Expect to see
          the document again only after approval by the IESG.

      (4) Notify both the IESG and IRSG.  If no concerns are raised in
          two weeks then do Discretion (5), else RFC Editor to resolve
          the concerns or do Refer (3).

      (5) RFC Editor's discretion.  The RFC Editor decides if a review
          is needed and if so by whom.  RFC Editor decides to publish or
          not.

   Of course, in all cases the RFC Editor can request or make minor
   changes for style, format, and presentation purposes.

   The IESG has designated the IESG Secretary as its agent for
   forwarding documents with IESG approval and for registering concerns
   in response to notifications (4) to the RFC Editor.  Documents from
   Area Directors or Working Group Chairs may be considered in the same
   way as documents from "other".

5.2.  The Standards Track Diagram

   There is a part of the STATUS and STATE categorization that is called
   the standards track.  Actually, only the changes of state are
   significant to the progression along the standards track, though the
   status assignments may change as well.

   The states illustrated by single line boxes are temporary states,
   those illustrated by double line boxes are long term states.  A
   protocol will normally be expected to remain in a temporary state for
   several months (minimum six months for proposed standard, minimum
   four months for draft standard).  A protocol may be in a long term
   state for many years.

   A protocol may enter the standards track only on the recommendation
   of the IESG; and may move from one state to another along the track
   only on the recommendation of the IESG.  That is, it takes action by
   the IESG to either start a protocol on the track or to move it along.

   Generally, as the protocol enters the standards track a decision is
   made as to the eventual STATUS, requirement level or applicability
   (elective, recommended, or required) the protocol will have, although
   a somewhat less stringent current status may be assigned, and it then
   is placed in the the proposed standard STATE with that status.  So
   the initial placement of a protocol is into state 1.  At any time the
   STATUS decision may be revisited.





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         |
         +<----------------------------------------------+
         |                                               ^
         V    0                                          |    4
   +-----------+                                   +===========+
   |   enter   |-->----------------+-------------->|experiment |
   +-----------+                   |               +=====+=====+
                                   |                     |
                                   V    1                |
                             +-----------+               V
                             | proposed  |-------------->+
                        +--->+-----+-----+               |
                        |          |                     |
                        |          V    2                |
                        +<---+-----+-----+               V
                             | draft std |-------------->+
                        +--->+-----+-----+               |
                        |          |                     |
                        |          V    3                |
                        +<---+=====+=====+               V
                             | standard  |-------------->+
                             +=====+=====+               |
                                                         |
                                                         V    5
                                                   +=====+=====+
                                                   | historic  |
                                                   +===========+

   The transition from proposed standard (1) to draft standard (2) can
   only be by action of the IESG and only after the protocol has been
   proposed standard (1) for at least six months.

   The transition from draft standard (2) to standard (3) can only be by
   action of the IESG and only after the protocol has been draft
   standard (2) for at least four months.

   Occasionally, the decision may be that the protocol is not ready for
   standardization and will be assigned to the experimental state (4).
   This is off the standards track, and the protocol may be resubmitted
   to enter the standards track after further work.  There are other
   paths into the experimental and historic states that do not involve
   IESG action.

   Sometimes one protocol is replaced by another and thus becomes
   historic, or it may happen that a protocol on the standards track is
   in a sense overtaken by another protocol (or other events) and
   becomes historic (state 5).




Internet Architecture Board Standards Track                    [Page 13]

RFC 1880                   Internet Standards              November 1995


6.  The Protocols

   Subsection 6.1 lists recent RFCs and other changes.  Subsections 6.2
   - 6.10 list the standards in groups by protocol state.

6.1.  Recent Changes

6.1.1.  New RFCs:

      1880 - Internet Official Protocol Standards

             This memo.

      1871 - Addendum to RFC 1602 -- Variance Procedure

             This is a Best Current Practices document and does not
             specify any level of standard.

      1870 - SMTP Service Extension for Message Size Declaration

             A Standard protocol.

      1869 - SMTP Service Extensions

             A Standard protocol.

      1868 - ARP Extension - UNARP

             An Experimental protocol.

      1867 - Form-based File Upload in HTML

             An Experimental protocol.

      1866 - Hypertext Markup Language - 2.0

             A Proposed Standard protocol.

      1865 - not yet issued.

      1864 - The Content-MD5 Header Field

             A Draft Standard protocol.

      1863 - A BGP/IDRP Route Server alternative to a full mesh routing

             An Experimental protocol.




Internet Architecture Board Standards Track                    [Page 14]

RFC 1880                   Internet Standards              November 1995


      1862 - Report of the IAB Workshop on Internet Information
             Infrastructure, October 12-14, 1994

             This is an information document and does not specify any
             level of standard.

      1861 - Simple Network Paging Protocol - Version 3 - Two-Way
             Enhanced

             This is an information document and does not specify any
             level of standard.

      1860 - Variable Length Subnet Table For IPv4

             This is an information document and does not specify any
             level of standard.

      1859 - ISO Transport Class 2 Non-use of Explicit Flow Control over
             TCP RFC1006 extension

             This is an information document and does not specify any
             level of standard.

      1858 - Security Considerations for IP Fragment Filtering

             This is an information document and does not specify any
             level of standard.

      1857 - A Model for Common Operational Statistics

             This is an information document and does not specify any
             level of standard.

      1856 - The Opstat Client-Server Model for Statistics Retrieval

             This is an information document and does not specify any
             level of standard.

      1855 - Netiquette Guidelines

             This is an information document and does not specify any
             level of standard.

      1854 - SMTP Service Extension for Command Pipelining

             A Proposed Standard protocol.





Internet Architecture Board Standards Track                    [Page 15]

RFC 1880                   Internet Standards              November 1995


      1853 - IP in IP Tunneling

             This is an information document and does not specify any
             level of standard.

      1852 - IP Authentication using Keyed SHA

             An Experimental protocol.

      1851 - The ESP Triple DES Transform

             An Experimental protocol.

      1850 - OSPF Version 2 Management Information Base

             A Draft Standard protocol.

      1849 - not yet issued.

      1848 - MIME Object Security Services

             A Proposed Standard protocol.

      1847 - Security Multiparts for MIME: Multipart/Signed and
             Multipart/Encrypted

             A Proposed Standard protocol.

      1846 - SMTP 521 Reply Code

             An Experimental protocol.

      1845 - SMTP Service Extension for Checkpoint/Restart

             An Experimental protocol.

      1844 - Multimedia E-mail (MIME) User Agent Checklist

             This is an information document and does not specify any
             level of standard.

      1843 - ASCII Printable Characters-Based Chinese Character Encoding
             for Internet Messages

             This is an information document and does not specify any
             level of standard.





Internet Architecture Board Standards Track                    [Page 16]

RFC 1880                   Internet Standards              November 1995


      1842 - ASCII Printable Characters-Based Chinese Character Encoding
             for Internet Messages

             This is an information document and does not specify any
             level of standard.

      1841 - PPP Network Control Protocol for LAN Extension

             This is an information document and does not specify any
             level of standard.

      1840 - not yet issued.

      1839 - not yet issued.

      1838 - Use of the X.500 Directory to support mapping between X.400
             and RFC 822 Addresses

             An Experimental protocol.

      1837 - Representing Tables and Subtrees in the X.500 Directory

             An Experimental protocol.

      1836 - Representing the O/R Address hierarchy in the X.500
             Directory Information Tree

             An Experimental protocol.

      1835 - Architecture of the WHOIS++ service

             A Proposed Standard protocol.

      1834 - Whois and Network Information Lookup Service, Whois++

             This is an information document and does not specify any
             level of standard.

      1833 - Binding Protocols for ONC RPC Version 2

             A Proposed Standard protocol.

      1832 - XDR: External Data Representation Standard

             A Proposed Standard protocol.






Internet Architecture Board Standards Track                    [Page 17]

RFC 1880                   Internet Standards              November 1995


      1831 - RPC: Remote Procedure Call Protocol Specification Version 2

             A Proposed Standard protocol.

      1830 - SMTP Service Extensions for Transmission of Large and
             Binary MIME Messages

             An Experimental protocol.

      1829 - The ESP DES-CBC Transform

             A Proposed Standard protocol.

      1828 - IP Authentication using Keyed MD5

             A Proposed Standard protocol.

      1827 - IP Encapsulating Security Payload (ESP)

             A Proposed Standard protocol.

      1826 - IP Authentication Header

             A Proposed Standard protocol.

      1825 - Security Architecture for the Internet Protocol

             A Proposed Standard protocol.

      1824 - The Exponential Security System TESS: An Identity-Based
             Cryptographic Protocol for Authenticated Key-Exchange
             (E.I.S.S.-Report 1995/4)

             This is an information document and does not specify any
             level of standard.

      1823 - The LDAP Application Program Interface

             This is an information document and does not specify any
             level of standard.

      1822 - A Grant of Rights to Use a Specific IBM patent with
             Photuris

             This is an information document and does not specify any
             level of standard.





Internet Architecture Board Standards Track                    [Page 18]

RFC 1880                   Internet Standards              November 1995


      1821 - Integration of Real-time Services in an IP-ATM Network
             Architecture

             This is an information document and does not specify any
             level of standard.

      1820 - Multimedia E-mail (MIME) User Agent Checklist

             This is an information document and does not specify any
             level of standard.

      1819 - Internet Stream Protocol Version 2 (ST2) Protocol
             Specification - Version ST2+

             An Experimental protocol.

      1818 - Best Current Practices

             This defines the Best Current Practices subseries and does
             not specify any level of standard.

      1817 - CIDR and Classful Routing

             This is an information document and does not specify any
             level of standard.

      1816 - U.S. Government Internet Domain Names

             This is an information document and does not specify any
             level of standard.

      1815 - Character Sets ISO-10646 and ISO-10646-J-1

             This is an information document and does not specify any
             level of standard.

6.1.2.  Other Changes:

   The following are changes to protocols listed in the previous
   edition.

      1137 - Mapping Between Full RFC 822 and RFC 822 with Restricted
             Encoding

             Moved to Historic.






Internet Architecture Board Standards Track                    [Page 19]

RFC 1880                   Internet Standards              November 1995


6.2.  Standard Protocols

Protocol   Name                                      Status    RFC STD *
========   =====================================     ======== ==== === =
--------   Internet Official Protocol Standards      Req      1880   1
--------   Assigned Numbers                          Req      1700   2
--------   Host Requirements - Communications        Req      1122   3
--------   Host Requirements - Applications          Req      1123   3
IP         Internet Protocol                         Req       791   5
            as amended by:--------
--------     IP Subnet Extension                     Req       950   5
--------     IP Broadcast Datagrams                  Req       919   5
--------     IP Broadcast Datagrams with Subnets     Req       922   5
ICMP       Internet Control Message Protocol         Req       792   5
IGMP       Internet Group Multicast Protocol         Rec      1112   5
UDP        User Datagram Protocol                    Rec       768   6
TCP        Transmission Control Protocol             Rec       793   7
TELNET     Telnet Protocol                           Rec   854,855   8
FTP        File Transfer Protocol                    Rec       959   9
SMTP       Simple Mail Transfer Protocol             Rec       821  10
SMTP-SIZE  SMTP Service Ext for Message Size         Rec      1870  10 *
SMTP-EXT   SMTP Service Extensions                   Rec      1869  10 *
MAIL       Format of Electronic Mail Messages        Rec       822  11
CONTENT    Content Type Header Field                 Rec      1049  11
NTPV2      Network Time Protocol (Version 2)         Rec      1119  12
DOMAIN     Domain Name System                        Rec 1034,1035  13
DNS-MX     Mail Routing and the Domain System        Rec       974  14
SNMP       Simple Network Management Protocol        Rec      1157  15
SMI        Structure of Management Information       Rec      1155  16
Concise-MIB Concise MIB Definitions                  Rec      1212  16
MIB-II     Management Information Base-II            Rec      1213  17
NETBIOS    NetBIOS Service Protocols                 Ele 1001,1002  19
ECHO       Echo Protocol                             Rec       862  20
DISCARD    Discard Protocol                          Ele       863  21
CHARGEN    Character Generator Protocol              Ele       864  22
QUOTE      Quote of the Day Protocol                 Ele       865  23
USERS      Active Users Protocol                     Ele       866  24
DAYTIME    Daytime Protocol                          Ele       867  25
TIME       Time Server Protocol                      Ele       868  26
TFTP       Trivial File Transfer Protocol            Ele      1350  33
RIP        Routing Information Protocol              Ele      1058  34
TP-TCP     ISO Transport Service on top of the TCP   Ele      1006  35
ETHER-MIB  Ethernet MIB                              Ele      1643  50
PPP        Point-to-Point Protocol (PPP)             Ele      1661  51
PPP-HDLC   PPP in HDLC Framing                       Ele      1662  51
IP-SMDS    IP Datagrams over the SMDS Service        Ele      1209  52





Internet Architecture Board Standards Track                    [Page 20]

RFC 1880                   Internet Standards              November 1995


[Note: an asterisk at the end of a line indicates a change from the
previous edition of this document.]

Applicability Statements:

   IGMP -- The Internet Architecture Board intends to move towards
   general adoption of IP multicasting, as a more efficient solution
   than broadcasting for many applications.  The host interface has been
   standardized in RFC-1112; however, multicast-routing gateways are in
   the experimental stage and are not widely available.  An Internet
   host should support all of RFC-1112, except for the IGMP protocol
   itself which is optional; see RFC-1122 for more details.  Even
   without IGMP, implementation of RFC-1112 will provide an important
   advance: IP-layer access to local network multicast addressing.  It
   is expected that IGMP will become recommended for all hosts and
   gateways at some future date.

   SMI, MIB-II SNMP -- The Internet Architecture Board recommends that
   all IP and TCP implementations be network manageable.  At the current
   time, this implies implementation of the Internet MIB-II (RFC-1213),
   and at least the recommended management protocol SNMP (RFC-1157).

   RIP -- The Routing Information Protocol (RIP) is widely implemented
   and used in the Internet.  However, both implementors and users
   should be aware that RIP has some serious technical limitations as a
   routing protocol.  The IETF is currently devpeloping several
   candidates for a new standard "open" routing protocol with better
   properties than RIP.  The IAB urges the Internet community to track
   these developments, and to implement the new protocol when it is
   standardized; improved Internet service will result for many users.

   TP-TCP -- As OSI protocols become more widely implemented and used,
   there will be an increasing need to support interoperation with the
   TCP/IP protocols.  The Internet Engineering Task Force is formulating
   strategies for interoperation.  RFC-1006 provides one interoperation
   mode, in which TCP/IP is used to emulate TP0 in order to support OSI
   applications.  Hosts that wish to run OSI connection-oriented
   applications in this mode should use the procedure described in RFC-
   1006.  In the future, the IAB expects that a major portion of the
   Internet will support both TCP/IP and OSI (inter-)network protocols
   in parallel, and it will then be possible to run OSI applications
   across the Internet using full OSI protocol "stacks".









Internet Architecture Board Standards Track                    [Page 21]

RFC 1880                   Internet Standards              November 1995


6.3.  Network-Specific Standard Protocols

All Network-Specific Standards have Elective status.

Protocol   Name                                    State    RFC   STD *
========   =====================================   =====   =====  === =
IP-ATM     Classical IP and ARP over ATM            Prop   1577
IP-FR      Multiprotocol over Frame Relay           Draft  1490
ATM-ENCAP  Multiprotocol Encapsulation over ATM     Prop   1483
IP-TR-MC   IP Multicast over Token-Ring LANs        Prop   1469
IP-FDDI    Transmission of IP and ARP over FDDI Net Std    1390    36
IP-HIPPI   IP and ARP on HIPPI                      Prop   1374
IP-X.25    X.25 and ISDN in the Packet Mode         Draft  1356
IP-FDDI    Internet Protocol on FDDI Networks       Draft  1188
ARP        Address Resolution Protocol              Std     826    37
RARP       A Reverse Address Resolution Protocol    Std     903    38
IP-ARPA    Internet Protocol on ARPANET             Std BBN1822    39
IP-WB      Internet Protocol on Wideband Network    Std     907    40
IP-E       Internet Protocol on Ethernet Networks   Std     894    41
IP-EE      Internet Protocol on Exp. Ethernet Nets  Std     895    42
IP-IEEE    Internet Protocol on IEEE 802            Std    1042    43
IP-DC      Internet Protocol on DC Networks         Std     891    44
IP-HC      Internet Protocol on Hyperchannel        Std    1044    45
IP-ARC     Transmitting IP Traffic over ARCNET Nets Std    1201    46
IP-SLIP    Transmission of IP over Serial Lines     Std    1055    47
IP-NETBIOS Transmission of IP over NETBIOS          Std    1088    48
IP-IPX     Transmission of 802.2 over IPX Networks  Std    1132    49

[Note: an asterisk at the end of a line indicates a change from the
previous edition of this document.]

Applicability Statements:

   It is expected that a system will support one or more physical
   networks and for each physical network supported the appropriate
   protocols from the above list must be supported.  That is, it is
   elective to support any particular type of physical network, and for
   the physical networks actually supported it is required that they be
   supported exactly according to the protocols in the above list.  See
   also the Host and Gateway Requirements RFCs for more specific
   information on network-specific ("link layer") protocols.










Internet Architecture Board Standards Track                    [Page 22]

RFC 1880                   Internet Standards              November 1995


6.4.  Draft Standard Protocols

Protocol   Name                                     Status          RFC
========   =====================================    ============== =====
CON-MD5    Content-MD5 Header Field                 Elective       1864*
OSPF-MIB   OSPF Version 2 MIB                       Elective       1850*
STR-REP    String Representation ...                Elective       1779
X.500syn   X.500 String Representation ...          Elective       1778
X.500lite  X.500 Lightweight ...                    Elective       1777
BGP-4-APP  Application of BGP-4                     Elective       1772
BGP-4      Border Gateway Protocol 4                Elective       1771
PPP-DNCP   PPP DECnet Phase IV Control Protocol     Elective       1762
RMON-MIB   Remote Network Monitoring MIB            Elective       1757
802.5-MIB  IEEE 802.5 Token Ring MIB                Elective       1748
BGP-4-MIB  BGP-4 MIB                                Elective       1657
POP3       Post Office Protocol, Version 3          Elective       1725
RIP2-MIB   RIP Version 2 MIB Extension              Elective       1724
RIP2       RIP Version 2-Carrying Additional Info.  Elective       1723
RIP2-APP   RIP Version 2 Protocol App. Statement    Elective       1722
SIP-MIB    SIP Interface Type MIB                   Elective       1694
-------    Def Man Objs Parallel-printer-like       Elective       1660
-------    Def Man Objs RS-232-like                 Elective       1659
-------    Def Man Objs Character Stream            Elective       1658
SMTP-8BIT  SMTP Service Ext or 8bit-MIMEtransport   Elective       1652
OSI-NSAP   Guidelines for OSI NSAP Allocation       Elective       1629
OSPF2      Open Shortest Path First Routing V2      Elective       1583
ISO-TS-ECHO Echo for ISO-8473                       Elective       1575
DECNET-MIB DECNET MIB                               Elective       1559
-------    Message Header Ext. of Non-ASCII Text    Elective       1522
MIME       Multipurpose Internet Mail Extensions    Elective       1521
802.3-MIB  IEEE 802.3 Repeater MIB                  Elective       1516
BRIDGE-MIB BRIDGE-MIB                               Elective       1493
NTPV3      Network Time Protocol (Version 3)        Elective       1305
IP-MTU     Path MTU Discovery                       Elective       1191
FINGER     Finger Protocol                          Elective       1288
BOOTP      Bootstrap Protocol                      Recommended 951,1497
NICNAME    WhoIs Protocol                           Elective        954

[Note: an asterisk at the end of a line indicates a change from the
previous edition of this document.]

Applicability Statements:

   PPP -- Point to Point Protocol is a method of sending IP over serial
   lines, which are a type of physical network.  It is anticipated that
   PPP will be advanced to the network-specifics standard protocol state
   in the future.




Internet Architecture Board Standards Track                    [Page 23]

RFC 1880                   Internet Standards              November 1995


6.5.  Proposed Standard Protocols

Protocol   Name                                     Status          RFC
========   =====================================    ============== =====
HTML       Hypertext Markup Language - 2.0          Elective       1866*
SMTP-Pipe  SMTP Serv. Ext. for Command Pipelining   Elective       1854*
MIME-Sec   MIME Object Security Services            Elective       1848*
MIME-Encyp MIME: Signed and Encrypted               Elective       1847*
WHOIS++    Architecture of the WHOIS++ service      Elective       1835*
--------   Binding Protocols for ONC RPC Version 2  Elective       1833*
XDR        External Data Representation Standard    Elective       1832*
RPC        Remote Procedure Call Protocol V. 2      Elective       1831*
--------   ESP DES-CBC Transform                    Elective       1829*
--------   IP Authentication using Keyed MD5        Elective       1828*
ESP        IP Encapsulating Security Payload        Elective       1827*
--------   IP Authentication Header                 Elective       1826*
--------   Security Architecture for IP             Elective       1825*
RREQ       Requirements for IP Version 4 Routers    Elective       1812
URL        Relative Uniform Resource Locators       Elective       1808
CLDAP      Connection-less LDAP                     Elective       1798
OSPF-DC    Ext. OSPF to Support Demand Circuits     Elective       1793
TMUX       Transport Multiplexing Protocol          Elective       1692
TFTP-Opt   TFTP Options                             Elective       1784
TFTP-Blk   TFTP Blocksize Option                    Elective       1783
TFTP-Ext   TFTP Option Extension                    Elective       1782
OSI-Dir    OSI User Friendly Naming ...             Elective       1781
MIME-EDI   MIME Encapsulation of EDI Objects        Elective       1767
Lang-Tag   Tags for Identification of Languages     Elective       1766
XNSCP      PPP XNS IDP Control Protocol             Elective       1764
BVCP       PPP Banyan Vines Control Protocol        Elective       1763
Print-MIB  Printer MIB                              Elective       1759
ATM-SIG    ATM Signaling Support for IP over ATM    Elective       1755
IPNG       Recommendation for IP Next Generation    Elective       1752
802.5-SSR  802.5 SSR MIB using SMIv2                Elective       1749
SDLCSMIv2  SNADLC SDLC MIB using SMIv2              Elective       1747
BGP4/IDRP  BGP4/IDRP for IP/OSPF Interaction        Elective       1745
AT-MIB     Appletalk MIB                            Elective       1742
MacMIME    MIME Encapsulation of Macintosh files    Elective       1740
URL        Uniform Resource Locators                Elective       1738
POP3-AUTH  POP3 AUTHentication command              Elective       1734
IMAP4-AUTH IMAP4 Authentication Mechanisms          Elective       1731
IMAP4      Internet Message Access Protocol V4      Elective       1730
PPP-MP     PPP Multilink Protocol                   Elective       1717
RDBMS-MIB  RDMS MIB - using SMIv2                   Elective       1697
MODEM-MIB  Modem MIB - using SMIv2                  Elective       1696
ATM-MIB    ATM Management Version 8.0 using SMIv2   Elective       1695
SNANAU-MIB SNA NAUs MIB using SMIv2                 Elective       1665
PPP-TRANS  PPP Reliable Transmission                Elective       1663



Internet Architecture Board Standards Track                    [Page 24]

RFC 1880                   Internet Standards              November 1995


BGP-4-IMP  BGP-4 Roadmap and Implementation         Elective       1656
--------   Postmaster Convention X.400 Operations   Elective       1648
TN3270-En  TN3270 Enhancements                      Elective       1647
PPP-BCP    PPP Bridging Control Protocol            Elective       1638
UPS-MIB    UPS Management Information Base          Elective       1628
AAL5-MTU   Default IP MTU for use over ATM AAL5     Elective       1626
PPP-SONET  PPP over SONET/SDH                       Elective       1619
PPP-ISDN   PPP over ISDN                            Elective       1618
DNS-R-MIB  DNS Resolver MIB Extensions              Elective       1612
DNS-S-MIB  DNS Server MIB Extensions                Elective       1611
FR-MIB     Frame Relay Service MIB                  Elective       1604
PPP-X25    PPP in X.25                              Elective       1598
OSPF-NSSA  The OSPF NSSA Option                     Elective       1587
OSPF-Multi Multicast Extensions to OSPF             Elective       1584
SONET-MIB  MIB SONET/SDH Interface Type             Elective       1595
RIP-DC     Extensions to RIP to Support Demand Cir. Elective       1582
--------   Evolution of the Interfaces Group of MIB-II Elective    1573
PPP-LCP    PPP LCP Extensions                       Elective       1570
X500-MIB   X.500 Directory Monitoring MIB           Elective       1567
MAIL-MIB   Mail Monitoring MIB                      Elective       1566
NSM-MIB    Network Services Monitoring MIB          Elective       1565
CIPX       Compressing IPX Headers Over WAM Media   Elective       1553
IPXCP      PPP Internetworking Packet Exchange Control Elective    1552
DHCP-BOOTP Interoperation Between DHCP and BOOTP    Elective       1534
DHCP-BOOTP DHCP Options and BOOTP Vendor Extensions Elective       1533
BOOTP      Clarifications and Extensions BOOTP      Elective       1532
DHCP       Dynamic Host Configuration Protocol      Elective       1541
SRB-MIB    Source Routing Bridge MIB                Elective       1525
CIDR-STRA  CIDR Address Assignment...               Elective       1519
CIDR-ARCH  CIDR Architecture...                     Elective       1518
CIDR-APP   CIDR Applicability Statement             Elective       1517
--------   802.3 MAU MIB                            Elective       1515
HOST-MIB   Host Resources MIB                       Elective       1514
--------   Token Ring Extensions to RMON MIB        Elective       1513
FDDI-MIB   FDDI Management Information Base         Elective       1512
KERBEROS   Kerberos Network Authentication Ser (V5) Elective       1510
GSSAPI     Generic Security Service API: C-bindings Elective       1509
GSSAPI     Generic Security Service Application...  Elective       1508
DASS       Distributed Authentication Security...   Elective       1507
--------   X.400 Use of Extended Character Sets     Elective       1502
HARPOON    Rules for Downgrading Messages...        Elective       1496
Mapping    MHS/RFC-822 Message Body Mapping         Elective       1495
Equiv      X.400/MIME Body Equivalences             Elective       1494
IDPR       Inter-Domain Policy Routing Protocol     Elective       1479
IDPR-ARCH  Architecture for IDPR                    Elective       1478
PPP/Bridge MIB Bridge PPP MIB                       Elective       1474
PPP/IP MIB  IP Network Control Protocol of PPP MIB  Elective       1473
PPP/SEC MIB Security Protocols of PPP MIB           Elective       1472



Internet Architecture Board Standards Track                    [Page 25]

RFC 1880                   Internet Standards              November 1995


PPP/LCP MIB Link Control Protocol of PPP MIB        Elective       1471
X25-MIB    Multiprotocol Interconnect on X.25 MIB   Elective       1461
SNMPv2     Coexistence between SNMPv1 and SNMPv2    Elective       1452
SNMPv2     Manager-to-Manager MIB                   Elective       1451
SNMPv2     Management Information Base for SNMPv2   Elective       1450
SNMPv2     Transport Mappings for SNMPv2            Elective       1449
SNMPv2     Protocol Operations for SNMPv2           Elective       1448
SNMPv2     Party MIB for SNMPv2                     Elective       1447
SNMPv2     Security Protocols for SNMPv2            Elective       1446
SNMPv2     Administrative Model for SNMPv2          Elective       1445
SNMPv2     Conformance Statements for SNMPv2        Elective       1444
SNMPv2     Textual Conventions for SNMPv2           Elective       1443
SNMPv2     SMI for SNMPv2                           Elective       1442
SNMPv2     Introduction to SNMPv2                   Elective       1441
PEM-KEY    PEM - Key Certification                  Elective       1424
PEM-ALG    PEM - Algorithms, Modes, and Identifiers Elective       1423
PEM-CKM    PEM - Certificate-Based Key Management   Elective       1422
PEM-ENC    PEM - Message Encryption and Auth        Elective       1421
SNMP-IPX   SNMP over IPX                            Elective       1420
SNMP-AT    SNMP over AppleTalk                      Elective       1419
SNMP-OSI   SNMP over OSI                            Elective       1418
FTP-FTAM   FTP-FTAM Gateway Specification           Elective       1415
IDENT-MIB  Identification MIB                       Elective       1414
IDENT      Identification Protocol                  Elective       1413
DS3/E3-MIB DS3/E3 Interface Type                    Elective       1407
DS1/E1-MIB DS1/E1 Interface Type                    Elective       1406
BGP-OSPF   BGP OSPF Interaction                     Elective       1403
--------   Route Advertisement In BGP2 And BGP3     Elective       1397
SNMP-X.25  SNMP MIB Extension for X.25 Packet Layer Elective       1382
SNMP-LAPB  SNMP MIB Extension for X.25 LAPB         Elective       1381
PPP-ATCP   PPP AppleTalk Control Protocol           Elective       1378
PPP-OSINLCP PPP OSI Network Layer Control Protocol  Elective       1377
TABLE-MIB  IP Forwarding Table MIB                  Elective       1354
SNMP-PARTY-MIB Administration of SNMP               Elective       1353
SNMP-SEC   SNMP Security Protocols                  Elective       1352
SNMP-ADMIN SNMP Administrative Model                Elective       1351
TOS        Type of Service in the Internet          Elective       1349
PPP-AUTH   PPP Authentication                       Elective       1334
PPP-LINK   PPP Link Quality Monitoring              Elective       1333
PPP-IPCP   PPP Control Protocol                     Elective       1332
-------    X.400 1988 to 1984 downgrading           Elective       1328
-------    Mapping between X.400(1988)              Elective       1327
TCP-EXT    TCP Extensions for High Performance      Elective       1323
FRAME-MIB  Management Information Base for Frame    Elective       1315
NETFAX     File Format for the Exchange of Images   Elective       1314
IARP       Inverse Address Resolution Protocol      Elective       1293
FDDI-MIB   FDDI-MIB                                 Elective       1285
-------    Encoding Network Addresses               Elective       1277



Internet Architecture Board Standards Track                    [Page 26]

RFC 1880                   Internet Standards              November 1995


-------    Replication and Distributed Operations   Elective       1276
-------    COSINE and Internet X.500 Schema         Elective       1274
BGP-MIB    Border Gateway Protocol MIB (Version 3)  Elective       1269
ICMP-ROUT  ICMP Router Discovery Messages           Elective       1256
IPSO       DoD Security Options for IP              Elective       1108
OSI-UDP    OSI TS on UDP                            Elective       1240
STD-MIBs   Reassignment of Exp MIBs to Std MIBs     Elective       1239
IPX-IP     Tunneling IPX Traffic through IP Nets    Elective       1234
GINT-MIB   Extensions to the Generic-Interface MIB  Elective       1229
IS-IS      OSI IS-IS for TCP/IP Dual Environments   Elective       1195
IP-CMPRS   Compressing TCP/IP Headers               Elective       1144
NNTP       Network News Transfer Protocol           Elective        977

[Note: an asterisk at the end of a line indicates a change from the
previous edition of this document.]

Applicability Statements:

   OSPF - RFC 1370 is an applicability statement for OSPF.
































Internet Architecture Board Standards Track                    [Page 27]

RFC 1880                   Internet Standards              November 1995


6.6.  Telnet Options

For convenience, all the Telnet Options are collected here with both
their state and status.

Protocol   Name                           Number  State Status  RFC STD
========   =====================================  ===== ====== ==== ===
TOPT-BIN   Binary Transmission                 0  Std   Rec     856  27
TOPT-ECHO  Echo                                1  Std   Rec     857  28
TOPT-RECN  Reconnection                        2  Prop  Ele     ...
TOPT-SUPP  Suppress Go Ahead                   3  Std   Rec     858  29
TOPT-APRX  Approx Message Size Negotiation     4  Prop  Ele     ...
TOPT-STAT  Status                              5  Std   Rec     859  30
TOPT-TIM   Timing Mark                         6  Std   Rec     860  31
TOPT-REM   Remote Controlled Trans and Echo    7  Prop  Ele     726
TOPT-OLW   Output Line Width                   8  Prop  Ele     ...
TOPT-OPS   Output Page Size                    9  Prop  Ele     ...
TOPT-OCRD  Output Carriage-Return Disposition 10  Prop  Ele     652
TOPT-OHT   Output Horizontal Tabstops         11  Prop  Ele     653
TOPT-OHTD  Output Horizontal Tab Disposition  12  Prop  Ele     654
TOPT-OFD   Output Formfeed Disposition        13  Prop  Ele     655
TOPT-OVT   Output Vertical Tabstops           14  Prop  Ele     656
TOPT-OVTD  Output Vertical Tab Disposition    15  Prop  Ele     657
TOPT-OLD   Output Linefeed Disposition        16  Prop  Ele     658
TOPT-EXT   Extended ASCII                     17  Prop  Ele     698
TOPT-LOGO  Logout                             18  Prop  Ele     727
TOPT-BYTE  Byte Macro                         19  Prop  Ele     735
TOPT-DATA  Data Entry Terminal                20  Prop  Ele    1043
TOPT-SUP   SUPDUP                             21  Prop  Ele     736
TOPT-SUPO  SUPDUP Output                      22  Prop  Ele     749
TOPT-SNDL  Send Location                      23  Prop  Ele     779
TOPT-TERM  Terminal Type                      24  Prop  Ele    1091
TOPT-EOR   End of Record                      25  Prop  Ele     885
TOPT-TACACS  TACACS User Identification       26  Prop  Ele     927
TOPT-OM    Output Marking                     27  Prop  Ele     933
TOPT-TLN   Terminal Location Number           28  Prop  Ele     946
TOPT-3270  Telnet 3270 Regime                 29  Prop  Ele    1041
TOPT-X.3   X.3 PAD                            30  Prop  Ele    1053
TOPT-NAWS  Negotiate About Window Size        31  Prop  Ele    1073
TOPT-TS    Terminal Speed                     32  Prop  Ele    1079
TOPT-RFC   Remote Flow Control                33  Prop  Ele    1372
TOPT-LINE  Linemode                           34  Draft Ele    1184
TOPT-XDL   X Display Location                 35  Prop  Ele    1096
TOPT-ENVIR Telnet Environment Option          36  Hist  Not    1408
TOPT-AUTH  Telnet Authentication Option       37  Exp   Ele    1416
TOPT-ENVIR Telnet Environment Option          39  Prop  Ele    1572
TOPT-EXTOP Extended-Options-List             255  Std   Rec     861  32




Internet Architecture Board Standards Track                    [Page 28]

RFC 1880                   Internet Standards              November 1995


[Note: an asterisk at the end of a line indicates a change from the
previous edition of this document.]

6.7.  Experimental Protocols

All Experimental protocols have the Limited Use status.

Protocol   Name                                                     RFC
========   =====================================                   =====
UNARP      ARP Extension - UNARP                                   1868*
-------    Form-based File Upload in HTML                          1867*
-------    BGP/IDRP Route Server Alternative                       1863*
-------    IP Authentication using Keyed SHA                       1852*
ESP3DES    ESP Triple DES Transform                                1851*
-------    SMTP 521 Reply Code                                     1846*
-------    SMTP Serv. Ext. for Checkpoint/Restart                  1845*
-------    X.500 Mapping X.400 and RFC 822 Addresses               1838*
-------    Tables and Subtrees in the X.500 Directory              1837*
-------    O/R Address hierarchy in X.500                          1836*
-------    SMTP Serv. Ext. Large and Binary MIME Msgs.             1830*
ST2        Stream Protocol Version 2                               1819*
-------    Content-Disposition Header                              1806
-------    Schema Publishing in X.500 Directory                    1804
-------    X.400-MHS use X.500 to support X.400-MHS Routing        1801
-------    Class A Subnet Experiment                               1797
TCP/IPXMIB TCP/IPX Connection Mib Specification                    1792
-------    TCP And UDP Over IPX Networks With Fixed Path MTU       1791
ICMP-DM    ICMP Domain Name Messages                               1788
CLNP-MULT  Host Group Extensions for CLNP Multicasting             1768
OSPF-OVFL  OSPF Database Overflow                                  1765
RWP        Remote Write ProtocolL - Version 1.0                    1756
NARP       NBMA Address Resolution Protocol                        1735
DNS-DEBUG  Tools for DNS debugging                                 1713
DNS-ENCODE DNS Encoding of Geographical Location                   1712
TCP-POS    An Extension to TCP: Partial Order Service              1693
-------    DNS to Distribute RFC1327 Mail Address Mapping Tables   1664
T/TCP      TCP Extensions for Transactions                         1644
UTF-7      A Mail-Safe Transformation Format of Unicode            1642
MIME-UNI   Using Unicode with MIME                                 1641
FOOBAR     FTP Operation Over Big Address Records                  1639
X500-CHART Charting Networks in the X.500 Directory                1609
X500-DIR   Representing IP Information in the X.500 Directory      1608
SNMP-DPI   SNMP Distributed Protocol Interface                     1592
CLNP-TUBA  Use of ISO CLNP in TUBA Environments                    1561
REM-PRINT  TPC.INT Subdomain Remote Printing - Technical           1528
EHF-MAIL   Encoding Header Field for Internet Messages             1505
REM-PRT    An Experiment in Remote Printing                        1486
RAP        Internet Route Access Protocol                          1476



Internet Architecture Board Standards Track                    [Page 29]

RFC 1880                   Internet Standards              November 1995


TP/IX      TP/IX: The Next Internet                                1475
X400       Routing Coordination for X.400 Services                 1465
DNS        Storing Arbitrary Attributes in DNS                     1464
IRCP       Internet Relay Chat Protocol                            1459
TOS-LS     Link Security TOS                                       1455
SIFT/UFT   Sender-Initiated/Unsolicited File Transfer              1440
DIR-ARP    Directed ARP                                            1433
TEL-SPX    Telnet Authentication: SPX                              1412
TEL-KER    Telnet Authentication: Kerberos V4                      1411
MAP-MAIL   X.400 Mapping and Mail-11                               1405
TRACE-IP   Traceroute Using an IP Option                           1393
DNS-IP     Experiment in DNS Based IP Routing                      1383
RMCP       Remote Mail Checking Protocol                           1339
TCP-HIPER  TCP Extensions for High Performance                     1323
MSP2       Message Send Protocol 2                                 1312
DSLCP      Dynamically Switched Link Control                       1307
--------   X.500 and Domains                                       1279
IN-ENCAP   Internet Encapsulation Protocol                         1241
CLNS-MIB   CLNS-MIB                                                1238
CFDP       Coherent File Distribution Protocol                     1235
SNMP-DPI   SNMP Distributed Program Interface                      1228
IP-AX.25   IP Encapsulation of AX.25 Frames                        1226
ALERTS     Managing Asynchronously Generated Alerts                1224
MPP        Message Posting Protocol                                1204
SNMP-BULK  Bulk Table Retrieval with the SNMP                      1187
DNS-RR     New DNS RR Definitions                                  1183
IMAP2      Interactive Mail Access Protocol                        1176
NTP-OSI    NTP over OSI Remote Operations                          1165
DMF-MAIL   Digest Message Format for Mail                          1153
RDP        Reliable Data Protocol                              908,1151
TCP-ACO    TCP Alternate Checksum Option                           1146
IP-DVMRP   IP Distance Vector Multicast Routing                    1075
VMTP       Versatile Message Transaction Protocol                  1045
COOKIE-JAR Authentication Scheme                                   1004
NETBLT     Bulk Data Transfer Protocol                              998
IRTP       Internet Reliable Transaction Protocol                   938
LDP        Loader Debugger Protocol                                 909
RLP        Resource Location Protocol                               887
NVP-II     Network Voice Protocol                              ISI-memo
PVP        Packet Video Protocol                               ISI-memo

[Note: an asterisk at the end of a line indicates a change from the
previous edition of this document.]








Internet Architecture Board Standards Track                    [Page 30]

RFC 1880                   Internet Standards              November 1995


6.8.  Informational Protocols

Information protocols have no status.

Protocol   Name                                                     RFC
=======    ====================================                    =====
SNPP       Simple Network Paging Protocol - Version 2              1861*
--------   ISO Transport Class 2 Non-use Explicit Flow Control     1859*
           over TCP RFC1006 extension
--------   IP in IP Tunneling                                      1853*
--------   PPP Network Control Protocol for LAN Extension          1841*
TESS       The Exponential Security System                         1824*
NFSV3      NFS Version 3 Protocol Specification                    1813
--------   A Format for Bibliographic Records                      1807
SDMD       IPv4 Option for Sender Directed MD Delivery             1770
SNTP       Simple Network Time Protocol                            1769
SNOOP      Snoop Version 2 Packet Capture File Format              1761
BINHEX     MIME Content Type for BinHex Encoded Files              1741
RWHOIS     Referral Whois Protocol                                 1714
DNS-NSAP   DNS NSAP Resource Records                               1706
RADIO-PAGE TPC.INT Subdomain: Radio Paging -- Technical Procedures 1703
GRE-IPv4   Generic Routing Encapsulation over IPv4                 1702
GRE        Generic Routing Encapsulatio                            1701
IPXWAN     Novell IPX Over Various WAN Media                       1634
ADSNA-IP   Advanced SNA/IP: A Simple SNA Transport Protocol        1538
AUBR       Appletalk Update-Based Routing Protocol...              1504
TACACS     Terminal Access Control Protocol                        1492
SUN-NFS    Network File System Protocol                            1094
SUN-RPC    Remote Procedure Call Protocol Version 2                1057
GOPHER     The Internet Gopher Protocol                            1436
-------    Data Link Switching: Switch-to-Switch Protocol          1434
LISTSERV   Listserv Distribute Protocol                            1429
-------    Replication Requirements                                1275
PCMAIL     Pcmail Transport Protocol                               1056
MTP        Multicast Transport Protocol                            1301
BSD Login  BSD Login                                               1282
DIXIE      DIXIE Protocol Specification                            1249
IP-X.121   IP to X.121 Address Mapping for DDN                     1236
OSI-HYPER  OSI and LLC1 on HYPERchannel                            1223
HAP2       Host Access Protocol                                    1221
SUBNETASGN On the Assignment of Subnet Numbers                     1219
SNMP-TRAPS Defining Traps for use with SNMP                        1215
DAS        Directory Assistance Service                            1202
MD4        MD4 Message Digest Algorithm                            1186
LPDP       Line Printer Daemon Protocol                            1179

[Note: an asterisk at the end of a line indicates a change from the
previous edition of this document.]



Internet Architecture Board Standards Track                    [Page 31]

RFC 1880                   Internet Standards              November 1995


6.9.  Historic Protocols

All Historic protocols have Not Recommended status.

Protocol   Name                                                RFC  STD
========   =====================================              ===== ===
--------   Mapping full 822 to Restricted 822                 1137     *
BGP3       Border Gateway Protocol 3 (BGP-3)             1267,1268
--------   Gateway Requirements                      Req      1009   4
EGP        Exterior Gateway Protocol                 Rec       904  18
SNMP-MUX   SNMP MUX Protocol and MIB                          1227
OIM-MIB-II OSI Internet Management: MIB-II                    1214
IMAP3      Interactive Mail Access Protocol Version 3         1203
SUN-RPC    Remote Procedure Call Protocol Version 1           1050
802.4-MIP  IEEE 802.4 Token Bus MIB                           1230
CMOT       Common Management Information Services             1189
--------   Mail Privacy: Procedures                           1113
--------   Mail Privacy: Key Management                       1114
--------   Mail Privacy: Algorithms                           1115
NFILE      A File Access Protocol                             1037
HOSTNAME   HOSTNAME Protocol                                   953
SFTP       Simple File Transfer Protocol                       913
SUPDUP     SUPDUP Protocol                                     734
BGP        Border Gateway Protocol                       1163,1164
MIB-I      MIB-I                                              1156
SGMP       Simple Gateway Monitoring Protocol                 1028
HEMS       High Level Entity Management Protocol              1021
STATSRV    Statistics Server                                   996
POP2       Post Office Protocol, Version 2                     937
RATP       Reliable Asynchronous Transfer Protocol             916
HFEP       Host - Front End Protocol                           929
THINWIRE   Thinwire Protocol                                   914
HMP        Host Monitoring Protocol                            869
GGP        Gateway Gateway Protocol                            823
RTELNET    Remote Telnet Service                               818
CLOCK      DCNET Time Server Protocol                          778
MPM        Internet Message Protocol                           759
NETRJS     Remote Job Service                                  740
NETED      Network Standard Text Editor                        569
RJE        Remote Job Entry                                    407
XNET       Cross Net Debugger                              IEN-158
NAMESERVER Host Name Server Protocol                       IEN-116
MUX        Multiplexing Protocol                            IEN-90
GRAPHICS   Graphics Protocol                             NIC-24308

[Note: an asterisk at the end of a line indicates a change from the
previous edition of this document.]




Internet Architecture Board Standards Track                    [Page 32]

RFC 1880                   Internet Standards              November 1995


6.10.  Obsolete Protocols

Some of the protocols listed in this memo are described in RFCs that are
obsoleted by newer RFCs.  "Obsolete" or "obsoleted" is not an official
state or status of protocols.  This subsection is for information only.

While it may seem to be obviously wrong to have an obsoleted RFC in the
list of standards, there may be cases when an older standard is in the
process of being replaced.  This process may take a year or two.

For example, the Network Time Protocol (NTP) [RFC 1119] is in its
version 2 a full Standard, and in its version 3 is a Draft Standard [RFC
1305].  Once version 3 is a full Standard, version 2 will be made
Historic.

Many obsoleted protocols are of little interest and are dropped from
this memo altogether.  Some obsoleted protocols have received enough
recognition that it seems appropriate to list them under their current
status and with the following reference to their current replacement.

RFC            RFC   Status     Title                               *
====           ====  =========  =================================== =
1661 obsoletes 1548  Draft /Ele The Point to Point Protocol (PPP)
1305 obsoletes 1119  Std  /Rec  Network Time Protocol (Version 2)
1533 obsoletes 1497  Draft/Rec  Bootstrap Protocol
1574 obsoletes 1139  Prop /Ele  Echo for ISO-8473
1573 obsoletes 1229  Prop /Ele  Extensions to the Generic-IF MIB
1559 obsoletes 1289  Prop /Ele  DECNET MIB
1541 obsoletes 1531  Prop /Ele  Dynamic Host Configuration Protocol
1592 obsoletes 1228  Exper/Lim  SNMP Distributed Program Interface
1528 obsoletes 1486  Exper/Lim  An Experiment in Remote Printing
1320 obsoletes 1186  Info /     MD4 Message Digest Algorithm
1057 obsoletes 1050  Hist /Not  Remote Procedure Call Version 1
1421 obsoletes 1113  Hist /Not  Mail Privacy: Procedures
1422 obsoletes 1114  Hist /Not  Mail Privacy: Key Management
1423 obsoletes 1115  Hist /Not  Mail Privacy: Algorithms
1267 obsoletes 1163  Hist /Not  Border Gateway Protocol
1268 obsoletes 1164  Hist /Not  Border Gateway Protocol

Thanks to Lynn Wheeler of Britton Lee for compiling the information in
this subsection.

[Note: an asterisk at the end of a line indicates a change from the
previous edition of this document.]







Internet Architecture Board Standards Track                    [Page 33]

RFC 1880                   Internet Standards              November 1995


7.  Contacts

7.1.  IAB, IETF, and IRTF Contacts

   7.1.1.  Internet Architecture Board (IAB) Contact

   Please send your comments about this list of protocols and especially
   about the Draft Standard Protocols to the Internet Architecture Board
   care of Abel Winerib, IAB Executive Director.

      Contacts:

         Abel Winerib
         Executive Director of the IAB
         Intel, JF2-64
         2111 NE 25th Avenue
         Hillsboro, OR 97124

         1-503-696-8972

         AWeinrib@ibeam.jf.intel.com


         Brian E. Carpenter
         Chair of the IAB
         CERN
         European Laboratory for Particle Physics
         1211 Geneva 23
         Switzerland

         +41 22 767-4967

         brian@dxcoms.cern.ch


   7.1.2.  Internet Engineering Task Force (IETF) Contact

      Contacts:

         Paul Mockapetris
         Chair of the IETF
         @home.net, Inc.
         101 University Avenue, Suite 240
         Palo Alto, CA 94301

         1-415-833-4950

         pvm@home.net



Internet Architecture Board Standards Track                    [Page 34]

RFC 1880                   Internet Standards              November 1995


         Steve Coya
         IESG Secretary
         Corporation for National Research Initiatives
         1895 Preston White Drive, Suite 100
         Reston, VA 22091

         1-703-620-8990

         scoya@CNRI.RESTON.VA.US

         Steve Coya
         Executive Director of the IETF
         Corporation for National Research Initiatives
         1895 Preston White Drive, Suite 100
         Reston, VA 22091

         1-703-620-8990

         scoya@CNRI.RESTON.VA.US


   7.1.3.  Internet Research Task Force (IRTF) Contact

      Contact:

         Abel Winerib
         Chair of the IRTF
         Intel, JF2-64
         2111 NE 25th Avenue
         Hillsboro, OR 97124

         1-503-696-8972

         AWeinrib@ibeam.jf.intel.com

















Internet Architecture Board Standards Track                    [Page 35]

RFC 1880                   Internet Standards              November 1995


7.2.  Internet Assigned Numbers Authority Contact

      Contact:

         Joyce K. Reynolds
         Internet Assigned Numbers Authority
         USC/Information Sciences Institute
         4676 Admiralty Way
         Marina del Rey, CA  90292-6695

         1-310-822-1511

         IANA@ISI.EDU

   The protocol standards are managed by the Internet Assigned Numbers
   Authority.

   Please refer to the document "Assigned Numbers" (RFC-1700) for
   further information about the status of protocol documents.  There
   are two documents that summarize the requirements for host and
   gateways in the Internet, "Host Requirements" (RFC-1122 and RFC-1123)
   and "Requirements for IP Version 4 Routers" (RFC-1812).

      How to obtain the most recent edition of this "Internet Official
      Protocol Standards" memo:

         The file "in-notes/std/std1.txt" may be copied via FTP from the
         FTP.ISI.EDU computer using the FTP username "anonymous" and FTP
         password "guest".






















Internet Architecture Board Standards Track                    [Page 36]

RFC 1880                   Internet Standards              November 1995


7.3.  Request for Comments Editor Contact

      Contact:

         Jon Postel
         RFC Editor
         USC/Information Sciences Institute
         4676 Admiralty Way
         Marina del Rey, CA  90292-6695

         1-310-822-1511

         RFC-Editor@ISI.EDU

   Documents may be submitted via electronic mail to the RFC Editor for
   consideration for publication as RFC.  If you are not familiar with
   the format or style requirements please request the "Instructions for
   RFC Authors".  In general, the style of any recent RFC may be used as
   a guide.

7.4.  The Network Information Center and
      Requests for Comments Distribution Contact

      RFC's may be obtained from DS.INTERNIC.NET via FTP, WAIS, and
      electronic mail.  Through FTP, RFC's are stored as rfc/rfcnnnn.txt
      or rfc/rfcnnnn.ps where 'nnnn' is the RFC number.  Login as
      "anonymous" and provide your e-mail address as the password.
      Through WAIS, you may use either your local WAIS client or telnet
      to DS.INTERNIC.NET and login as "wais" (no password required) to
      access a WAIS client.  Help information and a tutorial for using
      WAIS are available online.  The WAIS database to search is "rfcs".

      Directory and Database Services also provides a mail server
      interface.  Send a mail message to mailserv@ds.internic.net and
      include any of the following commands in the message body:

         document-by-name rfcnnnn      where 'nnnn' is the RFC number
                                       The text version is sent.

         file /ftp/rfc/rfcnnnn.yyy     where 'nnnn' is the RFC number.
                                       and 'yyy' is 'txt' or 'ps'.

         help                          to get information on how to use
                                       the mailserver.

      The InterNIC directory and database services collection of
      resource listings, internet documents such as RFCs, FYIs, STDs,
      and Internet Drafts, and publicly accessible databases are also



Internet Architecture Board Standards Track                    [Page 37]

RFC 1880                   Internet Standards              November 1995


      now available via Gopher.  All our collections are WAIS indexed
      and can be searched from the Gopher menu.

      To access the InterNIC Gopher Servers, please connect to
      "internic.net" port 70.

      Contact: admin@ds.internic.net

7.5.  Sources for Requests for Comments

   Details on many sources of RFCs via FTP or EMAIL may be obtained by
   sending an EMAIL message to "rfc-info@ISI.EDU" with the message body
   "help: ways_to_get_rfcs".  For example:

           To: rfc-info@ISI.EDU
           Subject: getting rfcs

           help: ways_to_get_rfcs

8.  Security Considerations

   Security issues are not addressed in this memo.

9.  Author's Address

   Jon Postel
   USC/Information Sciences Institute
   4676 Admiralty Way
   Marina del Rey, CA 90292

   Phone: 310-822-1511
   Fax:   310-823-6714

   Email: Postel@ISI.EDU

















Internet Architecture Board Standards Track                    [Page 38]


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