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Network Working Group                                             G. Zorn
Request for Comments: 2619                                       B. Aboba
Category: Standards Track                                       Microsoft
                                                                June 1999


                    RADIUS Authentication Server MIB

Status of this Memo

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

Copyright Notice

   Copyright (C) The Internet Society (1999).  All Rights Reserved.

Abstract

   This memo defines a set of extensions which instrument RADIUS
   authentication server functions. These extensions represent a portion
   of the Management Information Base (MIB) for use with network
   management protocols in the Internet community.  Using these
   extensions IP-based management stations can manage RADIUS
   authentication servers.

1.  Introduction

   This memo defines a portion of the Management Information Base (MIB)
   for use with network management protocols in the Internet community.
   In particular, it describes managed objects used for managing RADIUS
   authentication servers.

   RADIUS authentication servers are today widely deployed by dialup
   Internet Service Providers, in order to provide authentication
   services.  As a result, the effective management of RADIUS
   authentication servers is of considerable importance.











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RFC 2619            RADIUS Authentication Server MIB           June 1999


2.  The SNMP Management Framework

   The SNMP Management Framework presently consists of five major
   components:

    o   An overall architecture, described in RFC 2571 [1].

    o   Mechanisms for describing and naming objects and events for the
        purpose of management.  The first version of this Structure of
        Management Information (SMI) is called SMIv1 and described in
        STD 16, RFC 1155 [2], STD 16, RFC 1212 [3] and RFC 1215 [4].
        The second version, called SMIv2, is described in STD 58, RFC
        2578 [5], RFC 2579 [6] and RFC 2580 [7].

    o   Message protocols for transferring management information. The
        first version of the SNMP message protocol is called SNMPv1 and
        described in STD 15, RFC 1157 [8]. A second version of the
        SNMP message protocol, which is not an Internet standards
        track protocol, is called SNMPv2c and described in RFC 1901
        [9] and RFC 1906 [10].  The third version of the message
        protocol is called SNMPv3 and described in RFC 1906 [10], RFC
        2572 [11] and RFC 2574 [12].

    o   Protocol operations for accessing management information. The
        first set of protocol operations and associated PDU formats is
        described in STD 15, RFC 1157 [8]. A second set of protocol
        operations and associated PDU formats is described in RFC 1905
        [13].

    o   A set of fundamental applications described in RFC 2573 [14] and
        the view-based access control mechanism described in RFC 2575
        [15].

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  Objects in the MIB are
   defined using the mechanisms defined in the SMI.

   This memo specifies a MIB module that is compliant to the SMIv2.  A
   MIB conforming to the SMIv1 can be produced through the appropriate
   translations.  The resulting translated MIB must be semantically
   equivalent, except where objects or events are omitted because no
   translation is possible (use of Counter64).  Some machine readable
   information in SMIv2 will be converted into textual descriptions in
   SMIv1 during the translation process.  However, this loss of machine
   readable information is not considered to change the semantics of the
   MIB.





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RFC 2619            RADIUS Authentication Server MIB           June 1999


3.  Overview

   The RADIUS authentication protocol, described in [16], 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.

3.1.  Selected objects

   This MIB module contains fourteen scalars as well as a single table:

   (1)  the RADIUS Authentication Client Table contains one row for
        each RADIUS authentication client that the server shares a
        secret with.

   Each entry in the RADIUS Authentication Client Table includes twelve
   columns presenting a view of the activity of the RADIUS
   authentication server.

4.  Definitions

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

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

radiusAuthServMIB MODULE-IDENTITY
       LAST-UPDATED "9906110000Z"
       ORGANIZATION "IETF RADIUS Working Group."
       CONTACT-INFO
              " Bernard Aboba
                Microsoft



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RFC 2619            RADIUS Authentication Server MIB           June 1999


                One Microsoft Way
                Redmond, WA  98052
                US

                Phone: [phone]
                EMail: [e-mail]"
       DESCRIPTION
             "The MIB module for entities implementing the server
              side of the Remote Access Dialin User Service (RADIUS)
              authentication protocol."
       REVISION "9906110000Z"    --  11 Jun 1999
       DESCRIPTION "Initial version as published in RFC 2619"
       ::= { radiusAuthentication 1 }

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

radiusAuthentication  OBJECT IDENTIFIER ::= {radiusMIB 1}

radiusAuthServMIBObjects     OBJECT IDENTIFIER ::=
                                                 { radiusAuthServMIB 1 }

radiusAuthServ      OBJECT IDENTIFIER ::= { radiusAuthServMIBObjects 1 }

radiusAuthServIdent OBJECT-TYPE
       SYNTAX      SnmpAdminString
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
             "The implementation identification string for the
              RADIUS authentication server software in use on the
              system, for example; `FNS-2.1'"
       ::= {radiusAuthServ 1}

radiusAuthServUpTime OBJECT-TYPE
       SYNTAX      TimeTicks
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
             "If the server has a persistent state (e.g., a process),
              this value will be the time elapsed (in hundredths of a
              seco) since the server process was started.
              For software without persistent state, this value will
              be zero."
       ::= {radiusAuthServ 2}



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RFC 2619            RADIUS Authentication Server MIB           June 1999


radiusAuthServResetTime OBJECT-TYPE
       SYNTAX      TimeTicks
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
             "If the server has a persistent state (e.g., a process)
              and supports a `reset' operation (e.g., can be told to
              re-read configuration files), this value will be the
              time elapsed (in hundredths of a second) since the
              server was `reset.'  For software that does not
              have persistence or does not support a `reset' operation,
              this value will be zero."
       ::= {radiusAuthServ 3}

radiusAuthServConfigReset OBJECT-TYPE
       SYNTAX INTEGER { other(1),
                        reset(2),
                        initializing(3),
                        running(4)}
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
              "Status/action object to reinitialize any persistent
               server state.  When set to reset(2), any persistent
               server state (such as a process) is reinitialized as if
               the server had just been started.  This value will
               never be returned by a read operation.  When read, one of
               the following values will be returned:
                   other(1) - server in some unknown state;
                   initializing(3) - server (re)initializing;
                   running(4) - server currently running."
       ::= {radiusAuthServ 4}

-- New Stats proposed by Dale E. Reed Jr ([e-mail])

radiusAuthServTotalAccessRequests OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
               "The number of packets received on the
                authentication port."
        ::= { radiusAuthServ 5}

radiusAuthServTotalInvalidRequests OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current



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RFC 2619            RADIUS Authentication Server MIB           June 1999


        DESCRIPTION
              "The number of RADIUS Access-Request packets
               received from unknown addresses."
        ::= { radiusAuthServ 6 }

radiusAuthServTotalDupAccessRequests OBJECT-TYPE
       SYNTAX Counter32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
             "The number of duplicate RADIUS Access-Request
              packets received."
       ::= { radiusAuthServ 7 }