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Network Working Group G. ZornRequest for Comments: 2621 B. AbobaCategory: Informational Microsoft June 1999 RADIUS Accounting Server MIBStatus of this Memo This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind. 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 accounting 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 accounting 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 accounting servers. RADIUS accounting servers are today widely deployed by dialup Internet Service Providers, in order to provide accounting services. As a result, the effective management of RADIUS accounting servers is of considerable importance.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 inZorn & Aboba Informational [Page 1]RFC 2621 RADIUS Accounting Server MIB June 1999 STD 15, 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.3. Overview The RADIUS accounting protocol, described in [16], distinguishes between the client function and the server function. In RADIUS accounting, clients send Accounting-Requests, and servers reply with Accounting-Responses. Typically NAS devices implement the client function, and thus would be expected to implement the RADIUS accounting client MIB, while RADIUS accounting servers implement the server function, and thus would be expected to implement the RADIUS accounting server MIB.Zorn & Aboba Informational [Page 2]RFC 2621 RADIUS Accounting Server MIB June 1999 However, it is possible for a RADIUS accounting entity to perform both client and server functions. For example, a RADIUS proxy may act as a server to one or more RADIUS accounting clients, while simultaneously acting as an accounting client to one or more accounting 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 thirteen scalars as well as a single table: (1) the RADIUS Accounting Client Table contains one row for each RADIUS accounting client that the server shares a secret with. Each entry in the RADIUS Accounting Client Table includes eleven columns presenting a view of the activity of the RADIUS accounting server.4. DefinitionsRADIUS-ACC-SERVER-MIB DEFINITIONS ::= BEGINIMPORTS 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;radiusAccServMIB MODULE-IDENTITY LAST-UPDATED "9906110000Z" -- 11 Jun 1999 ORGANIZATION "IETF RADIUS 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 server side of the Remote Access Dialin User Service (RADIUS) accounting protocol." REVISION "9906110000Z" -- 11 Jun 1999 DESCRIPTION "Initial version as published in RFC 2621"Zorn & Aboba Informational [Page 3]RFC 2621 RADIUS Accounting Server MIB June 1999 ::= { radiusAccounting 1 }radiusMIB OBJECT-IDENTITY STATUS current DESCRIPTION "The OID assigned to RADIUS MIB work by the IANA." ::= { mib-2 67 }radiusAccounting OBJECT IDENTIFIER ::= {radiusMIB 2}radiusAccServMIBObjects OBJECT IDENTIFIER ::= { radiusAccServMIB 1 }radiusAccServ OBJECT IDENTIFIER ::= { radiusAccServMIBObjects 1 }radiusAccServIdent OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-only STATUS current DESCRIPTION "The implementation identification string for the RADIUS accounting server software in use on the system, for example; `FNS-2.1'" ::= {radiusAccServ 1}radiusAccServUpTime 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 second) since the server process was started. For software without persistent state, this value will be zero." ::= {radiusAccServ 2}radiusAccServResetTime 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,Zorn & Aboba Informational [Page 4]RFC 2621 RADIUS Accounting Server MIB June 1999 this value will be zero." ::= {radiusAccServ 3}radiusAccServConfigReset 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." ::= {radiusAccServ 4}-- New Stats proposed by Dale E. Reed Jr (daler@iea.com)radiusAccServTotalRequests OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of packets received on the accounting port." ::= { radiusAccServ 5 }radiusAccServTotalInvalidRequests OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of RADIUS Accounting-Request packets received from unknown addresses." ::= { radiusAccServ 6 }radiusAccServTotalDupRequests OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of duplicate RADIUS Accounting-RequestZorn & Aboba Informational [Page 5]RFC 2621 RADIUS Accounting Server MIB June 1999 packets received." ::= { radiusAccServ 7 }radiusAccServTotalResponses OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of RADIUS Accounting-Response packets sent." ::= { radiusAccServ 8 }radiusAccServTotalMalformedRequests OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of malformed RADIUS Accounting-Request packets received. Bad authenticators or unknown types are not included as malformed Access-Requests." ::= { radiusAccServ 9 }radiusAccServTotalBadAuthenticators OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of RADIUS Accounting-Request packets which contained invalid Signature attributes." ::= { radiusAccServ 10 }radiusAccServTotalPacketsDropped OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of incoming packets silently discarded for a reason other than malformed, bad authenticators, or unknown types." ::= { radiusAccServ 11 }radiusAccServTotalNoRecords OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of RADIUS Accounting-Request packets which were received and responded to but not recorded."Zorn & Aboba Informational [Page 6]RFC 2621 RADIUS Accounting Server MIB June 1999 ::= { radiusAccServ 12 }radiusAccServTotalUnknownTypes OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of RADIUS packets of unknowntype which were received." ::= { radiusAccServ 13 }-- End of newradiusAccClientTable OBJECT-TYPE SYNTAX SEQUENCE OF RadiusAccClientEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table listing the RADIUS accounting clients with which the server shares a secret." ::= { radiusAccServ 14 }radiusAccClientEntry OBJECT-TYPE SYNTAX RadiusAccClientEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry (conceptual row) representing a RADIUS accounting client with which the server shares a secret." INDEX { radiusAccClientIndex } ::= { radiusAccClientTable 1 }RadiusAccClientEntry ::= SEQUENCE { radiusAccClientIndex Integer32, radiusAccClientAddress IpAddress, radiusAccClientID SnmpAdminString, radiusAccServPacketsDropped Counter32, radiusAccServRequests Counter32, radiusAccServDupRequests Counter32, radiusAccServResponses Counter32, radiusAccServBadAuthenticators Counter32, radiusAccServMalformedRequests Counter32, radiusAccServNoRecords Counter32, radiusAccServUnknownTypes Counter32}radiusAccClientIndex OBJECT-TYPE SYNTAX Integer32 (1..2147483647)Zorn & Aboba Informational [Page 7]RFC 2621 RADIUS Accounting Server MIB June 1999 MAX-ACCESS not-accessible STATUS current DESCRIPTION "A number uniquely identifying each RADIUS accounting client with which this server communicates." ::= { radiusAccClientEntry 1 }radiusAccClientAddress OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The NAS-IP-Address of the RADIUS accounting client referred to in this table entry." ::= { radiusAccClientEntry 2 }radiusAccClientID OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-only STATUS current DESCRIPTION "The NAS-Identifier of the RADIUS accounting client referred to in this table entry. This is not necessarily the same as sysName in MIB II."
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