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Versions: (draft-nelson-rfc2618bis) 00 01 02 03 04 RFC 4668

Network Working Group                                          D. Nelson
Internet-Draft                                        Enterasys Networks
Obsoletes: RFC 2618 (if approved)                       October 18, 2005
Expires: April 21, 2006


                     RADIUS Auth Client MIB (IPv6)
                  draft-ietf-radext-rfc2618bis-01.txt

Status of this Memo

   By submitting this Internet-Draft, each author represents that any
   applicable patent or other IPR claims of which he or she is aware
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   This Internet-Draft will expire on April 21, 2006.

Copyright Notice

   Copyright (C) The Internet Society (2005).

Abstract

   This memo obsoletes RFC 2618 by deprecating the MIB table containing
   IPv4-only address formats and defining a new table to add support for
   version neutral IP address formats.  The remaining MIB objects from
   RFC 2618 are carried forward into this document.







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Table of Contents

   1.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   3.  The Internet-Standard Management Framework . . . . . . . . . .  3
   4.  Scope of Changes . . . . . . . . . . . . . . . . . . . . . . .  3
   5.  Structure of the MIB Module  . . . . . . . . . . . . . . . . .  4
   6.  Deprecated Objects . . . . . . . . . . . . . . . . . . . . . .  4
   7.  Definitions  . . . . . . . . . . . . . . . . . . . . . . . . .  5
   8.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 17
   9.  Security Considerations  . . . . . . . . . . . . . . . . . . . 17
   10. References . . . . . . . . . . . . . . . . . . . . . . . . . . 18
     10.1.  Normative References  . . . . . . . . . . . . . . . . . . 18
     10.2.  Informative References  . . . . . . . . . . . . . . . . . 19
   Appendix A.  Acknowledgments . . . . . . . . . . . . . . . . . . . 19
   Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 20
   Intellectual Property and Copyright Statements . . . . . . . . . . 21


































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1.  Terminology

   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 RFC 2119 [RFC2119].

   This document uses terminology from RFC 2865 [RFC2865].


2.  Introduction

   This memo defines a portion of the Management Information Base (MIB)
   for use with network management protocols in the Internet community.
   The objects defined within this memo relate to the Remote
   Authentication Dial-In User Service (RADIUS) Authentication Client as
   defined in RFC 2865 [RFC2865].


3.  The Internet-Standard Management Framework

   For a detailed overview of the documents that describe the current
   Internet-Standard Management Framework, please refer to section 7 of
   RFC 3410 [RFC3410].

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  MIB objects are generally
   accessed through the Simple Network Management Protocol (SNMP).
   Objects in the MIB are defined using the mechanisms defined in the
   Structure of Management Information (SMI).  This memo specifies a MIB
   module that is compliant to the SMIv2, which is described in STD 58,
   RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
   [RFC2580].


4.  Scope of Changes

   This document obsoletes RFC 2618 [RFC2618], RADIUS Authentication
   Client MIB, by deprecating the radiusAuthServerTable table and adding
   a new table, radiusAuthServerExtTable, containing
   radiusAuthServerInetAddressType, radiusAuthServerInetAddress, and
   radiusAuthClientServerInetPortNumber.  The purpose of these added MIB
   objects is to support version neutral IP addressing formats.  The
   existing table containing radiusAuthServerAddress and
   radiusAuthClientServerPortNumber is deprecated.  The remaining MIB
   objects are carried forward from RFC 2618 into this document.

   RFC 4001 [RFC4001], which defines the SMI Textual Conventions for
   IPv6 addresses, contains the following recommendation.



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   'In particular, when revising a MIB module that contains IPv4
   specific tables, it is suggested to define new tables using the
   textual conventions defined in this memo [RFC 4001] that support all
   versions of IP.  The status of the new tables SHOULD be "current",
   whereas the status of the old IP version specific tables SHOULD be
   changed to "deprecated".  The other approach, of having multiple
   similar tables for different IP versions, is strongly discouraged.'


5.  Structure of the MIB Module

   The RADIUS authentication protocol, described in RFC 2865 [RFC2865],
   distinguishes between the client function and the server function.
   In RADIUS authentication, clients send Access-Requests, and servers
   reply with Access-Accepts, Access-Rejects, and Access-Challenges.
   Typically NAS devices implement the client function, and thus would
   be expected to implement the RADIUS authentication client MIB, while
   RADIUS authentication servers implement the server function, and thus
   would be expected to implement the RADIUS authentication server MIB.

   However, it is possible for a RADIUS authentication entity to perform
   both client and server functions.  For example, a RADIUS proxy may
   act as a server to one or more RADIUS authentication clients, while
   simultaneously acting as an authentication client to one or more
   authentication servers.  In such situations, it is expected that
   RADIUS entities combining client and server functionality will
   support both the client and server MIBs.

   This MIB module contains two scalars as well as a single table, the
   RADIUS Authentication Server Table, which contains one row for each
   RADIUS authentication server with which the client shares a secret.
   Each entry in the RADIUS Authentication Server Table includes sixteen
   columns presenting a view of the activity of the RADIUS
   authentication client.


6.  Deprecated Objects

   The deprecated table in this MIB is carried forward from RFC 2618
   [RFC2618].  There are two conditions under which it MAY be desirable
   for managed entities to continue to support the deprecated table:

   1.  The managed entity only supports IPv4 address formats.
   2.  The managed entity supports both IPv4 and IPv6 address formats,
       and the deprecated table is supported for backwards compatibility
       with older management stations.  This option SHOULD only be used
       when the IP addresses in the new table are in IPv4 format and can
       accurately be represented in both the new table and the



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       deprecated table.

   Managed entities SHOULD NOT instantiate the deprecated table
   containing IPv4-only address objects when the RADIUS server address
   represented in the table row is not an IPv4 address.  Managed
   entities SHOULD NOT return inaccurate values of IP address or SNMP
   object access errors for IPv4-only address objects in otherwise
   populated tables.


7.  Definitions

   RADIUS-AUTH-CLIENT-MIB DEFINITIONS ::= BEGIN

   IMPORTS
          MODULE-IDENTITY, OBJECT-TYPE, OBJECT-IDENTITY,
          Counter32, Integer32, Gauge32,
          IpAddress, TimeTicks, mib-2      FROM SNMPv2-SMI
          SnmpAdminString                  FROM SNMP-FRAMEWORK-MIB
          InetAddressType, InetAddress,
          InetPortNumber                   FROM INET-ADDRESS-MIB
          MODULE-COMPLIANCE, OBJECT-GROUP  FROM SNMPv2-CONF;


   radiusAuthClientMIB MODULE-IDENTITY
          LAST-UPDATED "200510170000Z" -- 17 Oct 2005
          ORGANIZATION "IETF RADIUS Extensions Working Group."
          CONTACT-INFO
                 " Bernard Aboba
                   Microsoft
                   One Microsoft Way
                   Redmond, WA  98052
                   US
                   Phone: +1 425 936 6605
                   EMail: bernarda@microsoft.com"
          DESCRIPTION
                "The MIB module for entities implementing the client
                 side of the Remote Authentication Dial-In User Service
                 (RADIUS) authentication protocol."
          REVISION "200510170000Z"  -- 17 Oct 2005
          DESCRIPTION "Revised version as published in RFC xxxx. This
          version obsoletes that of RFC 2618 by deprecating the MIB
          table containing IPv4-only address formats and defining a
          new table to add support for version neutral IP address
          formats. The remaining MIB objects from RFC 2618 are carried
          forward into this version."
          REVISION "9906110000Z"    -- 11 Jun 1999
          DESCRIPTION "Initial version as published in RFC 2618"



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   -- RFC Editor: replace xxxx with actual RFC number at the time of
   -- publication, and remove this note.

          ::= { radiusAuthentication 2 }

   radiusMIB OBJECT-IDENTITY
          STATUS  current
          DESCRIPTION
                "The OID assigned to RADIUS MIB work by the IANA."
           ::= { mib-2 67 }

   radiusAuthentication  OBJECT IDENTIFIER ::= {radiusMIB 1}

   radiusAuthClientMIBObjects  OBJECT IDENTIFIER
           ::= { radiusAuthClientMIB 1 }

   radiusAuthClient  OBJECT IDENTIFIER
           ::= { radiusAuthClientMIBObjects 1 }

   radiusAuthClientInvalidServerAddresses OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only
         STATUS current
         DESCRIPTION
               "The number of RADIUS Access-Response packets
                received from unknown addresses."
         ::= { radiusAuthClient 1 }

   radiusAuthClientIdentifier OBJECT-TYPE
         SYNTAX SnmpAdminString
         MAX-ACCESS read-only
         STATUS current
         DESCRIPTION
                "The NAS-Identifier of the RADIUS authentication client.
                 This is not necessarily the same as sysName in MIB II."
         ::= { radiusAuthClient 2 }

   radiusAuthServerTable OBJECT-TYPE
         SYNTAX     SEQUENCE OF RadiusAuthServerEntry
         MAX-ACCESS not-accessible
         STATUS     deprecated
         DESCRIPTION
               "The (conceptual) table listing the RADIUS authentication
                servers with which the client shares a secret."
         ::= { radiusAuthClient 3 }

   radiusAuthServerEntry OBJECT-TYPE
         SYNTAX     RadiusAuthServerEntry



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         MAX-ACCESS not-accessible
         STATUS     deprecated
         DESCRIPTION
               "An entry (conceptual row) representing a RADIUS
                authentication server with which the client shares
                a secret."
         INDEX      { radiusAuthServerIndex }
         ::= { radiusAuthServerTable 1 }

   RadiusAuthServerEntry ::= SEQUENCE {
         radiusAuthServerIndex                           Integer32,
         radiusAuthServerAddress                         IpAddress,
         radiusAuthClientServerPortNumber                Integer32,
         radiusAuthClientRoundTripTime                   TimeTicks,
         radiusAuthClientAccessRequests                  Counter32,
         radiusAuthClientAccessRetransmissions           Counter32,
         radiusAuthClientAccessAccepts                   Counter32,
         radiusAuthClientAccessRejects                   Counter32,
         radiusAuthClientAccessChallenges                Counter32,
         radiusAuthClientMalformedAccessResponses        Counter32,
         radiusAuthClientBadAuthenticators               Counter32,
         radiusAuthClientPendingRequests                   Gauge32,
         radiusAuthClientTimeouts                        Counter32,
         radiusAuthClientUnknownTypes                    Counter32,
         radiusAuthClientPacketsDropped                  Counter32
   }

   radiusAuthServerIndex OBJECT-TYPE
         SYNTAX     Integer32 (1..2147483647)
         MAX-ACCESS not-accessible
         STATUS     deprecated
         DESCRIPTION
                "A number uniquely identifying each RADIUS
                Authentication server with which this client
                communicates."
         ::= { radiusAuthServerEntry 1 }

   radiusAuthServerAddress OBJECT-TYPE
         SYNTAX     IpAddress
         MAX-ACCESS read-only
         STATUS     deprecated
         DESCRIPTION
               "The IP address of the RADIUS authentication server
                referred to in this table entry."
         ::= { radiusAuthServerEntry 2 }

   radiusAuthClientServerPortNumber  OBJECT-TYPE
         SYNTAX Integer32 (0..65535)



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         MAX-ACCESS read-only
         STATUS deprecated
         DESCRIPTION
               "The UDP port the client is using to send requests to
                this server."
         ::= { radiusAuthServerEntry 3 }

   radiusAuthClientRoundTripTime  OBJECT-TYPE
         SYNTAX TimeTicks
         MAX-ACCESS read-only
         STATUS deprecated
         DESCRIPTION
               "The time interval (in hundredths of a second) between
                the most recent Access-Reply/Access-Challenge and the
                Access-Request that matched it from this RADIUS
                authentication server."
         ::= { radiusAuthServerEntry 4 }

   -- Request/Response statistics
   --
   -- TotalIncomingPackets = Accepts + Rejects + Challenges +
   -- UnknownTypes
   --
   -- TotalIncomingPackets - MalformedResponses -
   -- BadAuthenticators - UnknownTypes - PacketsDropped =
   -- Successfully received
   --
   -- AccessRequests + PendingRequests + ClientTimeouts =
   -- Successfully received
   --
   --

   radiusAuthClientAccessRequests OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only
         STATUS deprecated
         DESCRIPTION
               "The number of RADIUS Access-Request packets sent
                to this server. This does not include retransmissions."
         ::= { radiusAuthServerEntry 5 }

   radiusAuthClientAccessRetransmissions OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only
         STATUS deprecated
         DESCRIPTION
               "The number of RADIUS Access-Request packets
                retransmitted to this RADIUS authentication server."



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         ::= { radiusAuthServerEntry 6 }

   radiusAuthClientAccessAccepts OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only
         STATUS deprecated
         DESCRIPTION
               "The number of RADIUS Access-Accept packets
                (valid or invalid) received from this server."
         ::= { radiusAuthServerEntry 7 }

   radiusAuthClientAccessRejects OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only
         STATUS deprecated
         DESCRIPTION
               "The number of RADIUS Access-Reject packets
                (valid or invalid) received from this server."
         ::= { radiusAuthServerEntry  8 }

   radiusAuthClientAccessChallenges OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only
         STATUS deprecated
         DESCRIPTION
               "The number of RADIUS Access-Challenge packets
                (valid or invalid) received from this server."
         ::= { radiusAuthServerEntry 9 }

   -- "Access-Response" includes an Access-Accept, Access-Challenge
   -- or Access-Reject

   radiusAuthClientMalformedAccessResponses OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only
         STATUS deprecated
         DESCRIPTION
               "The number of malformed RADIUS Access-Response
                packets received from this server.
                Malformed packets include packets with
                an invalid length. Bad authenticators or
                Message Authenticator attributes or unknown types
                are not included as malformed access responses."
         ::= { radiusAuthServerEntry 10 }

   radiusAuthClientBadAuthenticators OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only



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         STATUS deprecated
         DESCRIPTION
               "The number of RADIUS Access-Response packets
                containing invalid authenticators or Message
                Authenticator attributes received from this server."
         ::= { radiusAuthServerEntry 11 }

   radiusAuthClientPendingRequests OBJECT-TYPE
         SYNTAX Gauge32
         MAX-ACCESS read-only
         STATUS deprecated
         DESCRIPTION
               "The number of RADIUS Access-Request packets
                destined for this server that have not yet timed out
                or received a response. This variable is incremented
                when an Access-Request is sent and decremented due to
                receipt of an Acess-Accept, Access-Reject or
                Access-Challenge, a timeout or retransmission."
         ::= { radiusAuthServerEntry 12 }

   radiusAuthClientTimeouts OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS deprecated
        DESCRIPTION
               "The number of authentication timeouts to this server.
                After a timeout the client may retry to the same
                server, send to a different server, or
                give up. A retry to the same server is counted as a
                retransmit as well as a timeout. A send to a different
                server is counted as a Request as well as a timeout."
         ::= { radiusAuthServerEntry  13 }

   radiusAuthClientUnknownTypes OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only
         STATUS deprecated
         DESCRIPTION
               "The number of RADIUS packets of unknown type which
                were received from this server on the authentication
                port."
         ::= { radiusAuthServerEntry  14 }

   radiusAuthClientPacketsDropped OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only
         STATUS deprecated
         DESCRIPTION



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               "The number of RADIUS packets of which were
                received from this server on the authentication port
                and dropped for some other reason."
         ::= { radiusAuthServerEntry  15 }


   -- New MIB Objects in this revision

   radiusAuthServerExtTable OBJECT-TYPE
         SYNTAX     SEQUENCE OF RadiusAuthServerExtEntry
         MAX-ACCESS not-accessible
         STATUS     current
         DESCRIPTION
               "The (conceptual) table listing the RADIUS authentication
                servers with which the client shares a secret."
         ::= { radiusAuthClient 4 }

   radiusAuthServerExtEntry OBJECT-TYPE
         SYNTAX     RadiusAuthServerExtEntry
         MAX-ACCESS not-accessible
         STATUS     current
         DESCRIPTION
               "An entry (conceptual row) representing a RADIUS
                authentication server with which the client shares
                a secret."
         INDEX      { radiusAuthServerExtIndex }
         ::= { radiusAuthServerExtTable 1 }

   RadiusAuthServerExtEntry ::= SEQUENCE {
         radiusAuthServerExtIndex                     Integer32,
         radiusAuthServerInetAddressType              InetAddressType,
         radiusAuthServerInetAddress                  InetAddress,
         radiusAuthClientServerInetPortNumber         InetPortNumber,
         radiusAuthClientExtRoundTripTime             TimeTicks,
         radiusAuthClientExtAccessRequests            Counter32,
         radiusAuthClientExtAccessRetransmissions     Counter32,
         radiusAuthClientExtAccessAccepts             Counter32,
         radiusAuthClientExtAccessRejects             Counter32,
         radiusAuthClientExtAccessChallenges          Counter32,
         radiusAuthClientExtMalformedAccessResponses  Counter32,
         radiusAuthClientExtBadAuthenticators         Counter32,
         radiusAuthClientExtPendingRequests           Gauge32,
         radiusAuthClientExtTimeouts                  Counter32,
         radiusAuthClientExtUnknownTypes              Counter32,
         radiusAuthClientExtPacketsDropped            Counter32
   }

   radiusAuthServerExtIndex OBJECT-TYPE



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         SYNTAX     Integer32 (1..2147483647)
         MAX-ACCESS not-accessible
         STATUS     current
         DESCRIPTION
                "A number uniquely identifying each RADIUS
                Authentication server with which this client
                communicates."
         ::= { radiusAuthServerExtEntry 1 }


   radiusAuthServerInetAddressType OBJECT-TYPE
         SYNTAX     InetAddressType
         MAX-ACCESS read-only
         STATUS     current
         DESCRIPTION
               "The type of address format used for the
                radiusAuthServerInetAddress object."
         ::= { radiusAuthServerExtEntry 2 }

   radiusAuthServerInetAddress OBJECT-TYPE
         SYNTAX     InetAddress
         MAX-ACCESS read-only
         STATUS     current
         DESCRIPTION
               "The IP address of the RADIUS authentication
                server referred to in this table entry, using
                the version neutral IP adddess format."
         ::= { radiusAuthServerExtEntry 3 }

   radiusAuthClientServerInetPortNumber  OBJECT-TYPE
         SYNTAX InetPortNumber
         MAX-ACCESS read-only
         STATUS current
         DESCRIPTION
               "The UDP port the client is using to send requests
                to this server."
         ::= { radiusAuthServerExtEntry 4 }

   radiusAuthClientExtRoundTripTime  OBJECT-TYPE
         SYNTAX TimeTicks
         MAX-ACCESS read-only
         STATUS current
         DESCRIPTION
               "The time interval (in hundredths of a second) between
                the most recent Access-Reply/Access-Challenge and the
                Access-Request that matched it from this RADIUS
                authentication server."
         ::= { radiusAuthServerExtEntry 5 }



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   -- Request/Response statistics
   --
   -- TotalIncomingPackets = Accepts + Rejects + Challenges +
   -- UnknownTypes
   --
   -- TotalIncomingPackets - MalformedResponses -
   -- BadAuthenticators - UnknownTypes - PacketsDropped =
   -- Successfully received
   --
   -- AccessRequests + PendingRequests + ClientTimeouts =
   -- Successfully received
   --
   --

   radiusAuthClientExtAccessRequests OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only
         STATUS current
         DESCRIPTION
               "The number of RADIUS Access-Request packets sent
                to this server. This does not include retransmissions."
         ::= { radiusAuthServerExtEntry 6 }

   radiusAuthClientExtAccessRetransmissions OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only
         STATUS current
         DESCRIPTION
               "The number of RADIUS Access-Request packets
                retransmitted to this RADIUS authentication server."
         ::= { radiusAuthServerExtEntry 7 }

   radiusAuthClientExtAccessAccepts OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only
         STATUS current
         DESCRIPTION
               "The number of RADIUS Access-Accept packets
                (valid or invalid) received from this server."
         ::= { radiusAuthServerExtEntry 8 }

   radiusAuthClientExtAccessRejects OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only
         STATUS current
         DESCRIPTION
               "The number of RADIUS Access-Reject packets
                (valid or invalid) received from this server."



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         ::= { radiusAuthServerExtEntry  9 }

   radiusAuthClientExtAccessChallenges OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only
         STATUS current
         DESCRIPTION
               "The number of RADIUS Access-Challenge packets
                (valid or invalid) received from this server."
         ::= { radiusAuthServerExtEntry 10 }

   -- "Access-Response" includes an Access-Accept, Access-Challenge
   -- or Access-Reject

   radiusAuthClientExtMalformedAccessResponses OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only
         STATUS current
         DESCRIPTION
               "The number of malformed RADIUS Access-Response
                packets received from this server.
                Malformed packets include packets with
                an invalid length. Bad authenticators or
                Message Authenticator attributes or unknown types
                are not included as malformed access responses."
         ::= { radiusAuthServerExtEntry 11 }

   radiusAuthClientExtBadAuthenticators OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only
         STATUS current
         DESCRIPTION
               "The number of RADIUS Access-Response packets
                containing invalid authenticators or Message
                Authenticator attributes received from this server."
         ::= { radiusAuthServerExtEntry 12 }

   radiusAuthClientExtPendingRequests OBJECT-TYPE
         SYNTAX Gauge32
         MAX-ACCESS read-only
         STATUS current
         DESCRIPTION
               "The number of RADIUS Access-Request packets
                destined for this server that have not yet timed out
                or received a response. This variable is incremented
                when an Access-Request is sent and decremented due to
                receipt of an Acess-Accept, Access-Reject or
                Access-Challenge, a timeout or retransmission."



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         ::= { radiusAuthServerExtEntry 13 }

   radiusAuthClientExtTimeouts OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
               "The number of authentication timeouts to this server.
                After a timeout the client may retry to the same
                server, send to a different server, or
                give up. A retry to the same server is counted as a
                retransmit as well as a timeout. A send to a different
                server is counted as a Request as well as a timeout."
         ::= { radiusAuthServerExtEntry  14 }

   radiusAuthClientExtUnknownTypes OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only
         STATUS current
         DESCRIPTION
               "The number of RADIUS packets of unknown type which
                were received from this server on the authentication
                port."
         ::= { radiusAuthServerExtEntry  15 }

   radiusAuthClientExtPacketsDropped OBJECT-TYPE
         SYNTAX Counter32
         MAX-ACCESS read-only
         STATUS current
         DESCRIPTION
               "The number of RADIUS packets of which were
                received from this server on the authentication port
                and dropped for some other reason."
         ::= { radiusAuthServerExtEntry  16 }

   -- conformance information

   radiusAuthClientMIBConformance OBJECT IDENTIFIER
           ::= { radiusAuthClientMIB 2 }

   radiusAuthClientMIBCompliances OBJECT IDENTIFIER
           ::= { radiusAuthClientMIBConformance 1 }

   radiusAuthClientMIBGroups OBJECT IDENTIFIER
           ::= { radiusAuthClientMIBConformance 2 }


   -- compliance statements



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   radiusAuthClientMIBCompliance MODULE-COMPLIANCE
        STATUS  deprecated
        DESCRIPTION
              "The compliance statement for authentication clients
               implementing the RADIUS Authentication Client MIB."
        MODULE  -- this module
               MANDATORY-GROUPS { radiusAuthClientMIBGroup }

        ::= { radiusAuthClientMIBCompliances 1 }

   radiusAuthClientExtMIBCompliance MODULE-COMPLIANCE
        STATUS  current
        DESCRIPTION
              "The compliance statement for authentication
               clients implementing the RADIUS Authentication
               Client IPv6 Extensions MIB."
        MODULE  -- this module
               MANDATORY-GROUPS { radiusAuthClientExtMIBGroup }

        ::= { radiusAuthClientMIBCompliances 2 }


   -- units of conformance

   radiusAuthClientMIBGroup OBJECT-GROUP
        OBJECTS { radiusAuthClientIdentifier,
                  radiusAuthClientInvalidServerAddresses,
                  radiusAuthServerAddress,
                  radiusAuthClientServerPortNumber,
                  radiusAuthClientRoundTripTime,
                  radiusAuthClientAccessRequests,
                  radiusAuthClientAccessRetransmissions,
                  radiusAuthClientAccessAccepts,
                  radiusAuthClientAccessRejects,
                  radiusAuthClientAccessChallenges,
                  radiusAuthClientMalformedAccessResponses,
                  radiusAuthClientBadAuthenticators,
                  radiusAuthClientPendingRequests,
                  radiusAuthClientTimeouts,
                  radiusAuthClientUnknownTypes,
                  radiusAuthClientPacketsDropped
               }
        STATUS  deprecated
        DESCRIPTION
              "The basic collection of objects providing management of
               RADIUS Authentication Clients."
        ::= { radiusAuthClientMIBGroups 1 }




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   radiusAuthClientExtMIBGroup OBJECT-GROUP
        OBJECTS { radiusAuthClientIdentifier,
                  radiusAuthClientInvalidServerAddresses,
                  radiusAuthServerInetAddressType,
                  radiusAuthServerInetAddress,
                  radiusAuthClientServerInetPortNumber,
                  radiusAuthClientExtRoundTripTime,
                  radiusAuthClientExtAccessRequests,
                  radiusAuthClientExtAccessRetransmissions,
                  radiusAuthClientExtAccessAccepts,
                  radiusAuthClientExtAccessRejects,
                  radiusAuthClientExtAccessChallenges,
                  radiusAuthClientExtMalformedAccessResponses,
                  radiusAuthClientExtBadAuthenticators,
                  radiusAuthClientExtPendingRequests,
                  radiusAuthClientExtTimeouts,
                  radiusAuthClientExtUnknownTypes,
                  radiusAuthClientExtPacketsDropped
               }
        STATUS  current
        DESCRIPTION
              "The collection of extended objects providing
               management of RADIUS Authentication Clients
               using version neutral IP address format."
        ::= { radiusAuthClientMIBGroups 2 }

   END


8.  IANA Considerations

   This document requires no new IANA assignments.


9.  Security Considerations

   There are no management objects defined in this MIB that have a MAX-
   ACCESS clause of read-write and/or read-create.  So, if this MIB is
   implemented correctly, then there is no risk that an intruder can
   alter or create any management objects of this MIB via direct SNMP
   SET operations.

   There are a number of managed objects in this MIB that may contain
   sensitive information.  These are:







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   radiusAuthServerIPAddress This can be used to determine the address
      of the RADIUS authentication server with which the client is
      communicating.  This information could be useful in mounting an
      attack on the authentication server.

   radiusAuthServerInetAddress This can be used to determine the address
      of the RADIUS authentication server with which the client is
      communicating.  This information could be useful in mounting an
      attack on the authentication server.

   radiusAuthClientServerInetPortNumber This can be used to determine
      the port number on which the RADIUS authentication client is
      sending.  This information could be useful in impersonating the
      client in order to send data to the authentication server.

   It is thus important to control even GET access to these objects and
   possibly to even encrypt the values of these object when sending them
   over the network via SNMP.  Not all versions of SNMP provide features
   for such a secure environment.

   SNMP versions prior to SNMPv3 do not provide a secure environment.
   Even if the network itself is secure (for example by using IPSec),
   there is no control as to who on the secure network is allowed to
   access and GET/SET (read/change/create/delete) the objects in this
   MIB.

   It is recommended that the implementers consider the security
   features as provided by the SNMPv3 framework.  Specifically, the use
   of the User-based Security Model [RFC2574] and the View-based Access
   Control Model [RFC2575] is recommended.  Using these security
   features, customer/users can give access to the objects only to those
   principals (users) that have legitimate rights to GET or SET (change/
   create/delete) them.


10.  References

10.1.  Normative References

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

   [RFC2574]  Blumenthal, U. and B. Wijnen, "User-based Security Model
              (USM) for version 3 of the Simple Network Management
              Protocol (SNMPv3)", RFC 2574, April 1999.

   [RFC2575]  Wijnen, B., Presuhn, R., and K. McCloghrie, "View-based
              Access Control Model (VACM) for the Simple Network



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              Management Protocol (SNMP)", RFC 2575, April 1999.

   [RFC2578]  McCloghrie, K., Ed., Perkins, D., Ed., and J.
              Schoenwaelder, Ed., "Structure of Management Information
              Version 2 (SMIv2)", STD 58, RFC 2578, April 1999.

   [RFC2579]  McCloghrie, K., Ed., Perkins, D., Ed., and J.
              Schoenwaelder, Ed., "Textual Conventions for SMIv2",
              STD 58, RFC 2579, April 1999.

   [RFC2580]  McCloghrie, K., Perkins, D., and J. Schoenwaelder,
              "Conformance Statements for SMIv2", STD 58, RFC 2580,
              April 1999.

   [RFC3410]  Case, J., Mundy, R., Partain, D., and B. Stewart,
              "Introduction and Applicability Statements for Internet-
              Standard Management Framework", RFC 3410, December 2002.

   [RFC3418]  Presuhn, R., "Management Information Base (MIB) for the
              Simple Network Management Protocol (SNMP)", STD 62,
              RFC 3418, December 2002.

   [RFC4001]  Daniele, M., Haberman, B., Routhier, S., and J.
              Schoenwaelder, "Textual Conventions for Internet Network
              Addresses", RFC 4001, February 2005.

10.2.  Informative References

   [RFC2618]  Aboba, B. and G. Zorn, "RADIUS Authentication Client MIB",
              RFC 2618, June 1999.

   [RFC2865]  Rigney, C., Willens, S., Rubens, A., and W. Simpson,
              "Remote Authentication Dial In User Service (RADIUS)",
              RFC 2865, June 2000.


Appendix A.  Acknowledgments

   The Authors of the original MIB are Bernard Aboba and Glen Zorn.

   Many thanks to all reviewers, especially to Dave Harrington, Dan
   Romascanu, C.M. Heard, Bruno Pape and Greg Weber.









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Author's Address

   David B. Nelson
   Enterasys Networks
   50 Minuteman Road
   Andover, MA  01810
   USA

   Email: dnelson@enterasys.com










































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