RFC 2274 (rfc2274) - Page 1 of 76

User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)

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Network Working Group                                      U. Blumenthal
Request for Comments: 2274                     IBM T. J. Watson Research
Obsoletes: 2264                                                B. Wijnen
Category: Standards Track                      IBM T. J. Watson Research
                                                            January 1998


          User-based Security Model (USM) for version 3 of the
              Simple Network Management Protocol (SNMPv3)

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 (1998).  All Rights Reserved.

IANA Note

   Due to a clerical error in the assignment of the snmpModules in this
   memo, this RFC provides the corrected number assignment for this
   protocol.  This memo obsoletes RFC 2264.

Abstract

   This document describes the User-based Security Model (USM) for SNMP
   version 3 for use in the SNMP architecture [RFC 2271].  It defines the
   Elements of Procedure for providing SNMP message level security.
   This document also includes a MIB for remotely monitoring/managing
   the configuration parameters for this Security Model.

Table of Contents

1.  Introduction                                                       3
1.1.  Threats                                                          4
1.2.  Goals and Constraints                                            5
1.3.  Security Services                                                6
1.4.  Module Organization                                              7
1.4.1.  Timeliness Module                                              7
1.4.2.  Authentication Protocol                                        8
1.4.3.  Privacy Protocol                                               8
1.5.  Protection against Message Replay, Delay and Redirection         8
1.5.1.  Authoritative SNMP engine                                      8



Blumenthal & Wijnen         Standards Track
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