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+Network Working Group                                           B. Jewell
+Request for Comments: 2787                 Copper Mountain Networks, Inc.
+Category: Standards Track                                       D. Chuang
+                                                    CoSine Communications
+                                                               March 2000
+
+
+                 Definitions of Managed Objects for the
+                   Virtual Router Redundancy Protocol
+
+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 (2000).  All Rights Reserved.
+
+Abstract
+
+   This specification defines an extension to the Management Information
+   Base (MIB) for use with SNMP-based network management.  In
+   particular, it defines objects for configuring, monitoring, and
+   controlling routers that employ the Virtual Router Redundancy
+   Protocol (VRRP) [17].
+
+   This memo specifies a MIB module in a manner that is compliant with
+   SMIv2 [5], and semantically identical to the SMIv1 definitions [2].
+
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+Jewell & Chuang             Standards Track                     [Page 1]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+Table of Contents
+
+   1  The SNMP Network Management Framework .................    2
+   2  Overview ..............................................    3
+   2.1  VRRP MIB Structure ..................................    3
+   2.2  Virtual Router Redundancy Protocol ..................    4
+   2.3  VRRP MIB Table Design ...............................    4
+   2.3.1  Relation to Interface Group .......................    5
+   2.4  VRRP Scenarios ......................................    5
+   2.4.1  Scenario #1 .......................................    5
+   2.4.2  Scenario #2 .......................................    8
+   3  Definitions ...........................................   11
+   4  Security Considerations ...............................   27
+   5  Acknowledgements ......................................   28
+   6  References ............................................   28
+   7  Authors' Addresses ....................................   30
+   8  Intellectual Property Statement........................   30
+   9  Full Copyright Statement...............................   31
+
+1.  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], STD
+     58, RFC 2579 [6] and STD 58, 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].
+
+
+
+
+
+Jewell & Chuang             Standards Track                     [Page 2]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
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+   o A set of fundamental applications described in RFC 2573 [14] and
+     the view-based access control mechanism described in RFC 2575 [15].
+
+   A more detailed introduction to the current SNMP Management Framework
+   can be found in RFC 2570 [16].
+
+   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.
+
+2.  Overview
+
+   This memo identifies the set of objects for configuring, monitoring,
+   and controlling the Virtual Router Redundancy Protocol (VRRP), as
+   defined in RFC 2338 [17].
+
+   VRRP specifies an election protocol that will allow one or more
+   associated IP addresses to be assumed by another router in the event
+   of a failure of the IP address(es) owner. Thus, IP traffic from a
+   host using a failed router as a default gateway is transparently
+   fowarded by the VRRP router that has assumed control.  VRRP provides
+   redundancy in routed networks without requiring configuration of
+   dynamic routing or router discovery protocols on every end-host.
+
+   Since the VRRP protocol is intended for use with IPv4 routers only,
+   this MIB uses the SYNTAX for IP addresses which is specific to IPv4.
+   Thus, changes will be required for this MIB to interoperate in an
+   IPv6 environment.
+
+2.1.  VRRP MIB Structure
+
+   The VRRP MIB contains three conformance groups:
+
+   - vrrpOperations Group: Objects related to VRRP router's
+     configuration and control.
+
+   - vrrpStatistics Group: Objects containing information useful in
+     monitoring the operation of VRRP routers.
+
+
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+Jewell & Chuang             Standards Track                     [Page 3]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
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+   - vrrpNotifications Group: Consists of objects and definitions for
+     use in SNMP notifications sent by VRRP routers.
+
+   Tables in the MIB include the following:
+
+   (1) The vrrpOperTable, which contains objects that define the
+       operational characteristics of a VRRP router. Rows in this table
+       correspond to instances of virtual routers.
+
+   (2) The vrrpAssoIpAddrTable, which contains the addresses of the
+        virtual router(s) that a given VRRP router is backing up.
+
+   (3) The vrrpRouterStatsTable which contains the operating statistics
+       for a VRRP router.
+
+2.2.  Virtual Router Redundancy Protocol
+
+   This MIB is based on the following characteristics of VRRP as defined
+   in the VRRP specification [17].
+
+   - A "VRRP router" is one that is configured to run the VRRP protocol
+     in conjunction with one or more other VRRP routers attached to a
+     LAN.
+
+   - A VRRP router can be running one or more instances of a virtual
+     router.
+
+   - A "virtual router" is an abstraction which consists of two or more
+     physical routers associated by a Virtual Router Identifier (VRID).
+
+   - An instance of a virtual router (on a physical VRRP router), can be
+     uniquely identified by a combination of the 'ifIndex' [18] and
+     "Virtual Router Identifier" (VRID).
+
+   - For each VRID there is a set of one or more "associated IP
+     addresses" that are backed-up by the virtual router.
+
+2.3.  VRRP MIB Table Design
+
+   The tables in the VRRP MIB are structured with the assumption that a
+   VRRP network management application would likely be designed to
+   display information or provide configuration about a VRRP router on a
+   "per-virtual-router basis". Thus, the tables defined in the MIB
+   consist of conceptual rows which are grouped in a manner to present a
+   view of individual virtual routers with a minimal number of SNMP
+   operations.
+
+
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+
+Jewell & Chuang             Standards Track                     [Page 4]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+2.3.1.  Relation to Interface Group (RFC 2233) [18].
+
+   Since a router can be participating in VRRP on one or more physical
+   interfaces, "ifIndex" is used as an index into the tables defined in
+   the VRRP MIB.
+
+2.4.  VRRP Scenarios
+
+   The following section provides examples of how some of the objects in
+   this MIB are instantiated for two different VRRP scenarios.
+
+   KEY:
+   ----
+
+   The labels in the following tables and diagrams correspond to the
+   actual MIB objects as follows:
+
+      if      = vrrpOperIfIndex
+      VrId    = vrrpOperVrId
+      State   = vrrpOperState
+      Prior   = vrrpOperPriority
+      AddrCnt = vrrpOperIpAddrCount
+      IpAddr  = vrrpOperMasterIpAddr
+      RowStat = vrrpOperRowStatus
+
+2.4.1.  VRRP Scenario #1
+
+   The following figure shows a simple network with two VRRP routers
+   configured with two virtual routers. This sample topology is taken
+   from the VRRP specification [17]. Addresses in '()' indicate the IP
+   address of the default gateway for a given host, H1 - H4. In the
+   diagram, "Interface" is used in the context defined in IF-MIB [18].
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+Jewell & Chuang             Standards Track                     [Page 5]
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+RFC 2787              VRRP MIB Management Objects             March 2000
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+                   VRID=1       VRID=2
+                  +-----+      +-----+
+                  | MR1 |      | MR2 |
+                  |  &  |      |  &  |
+                  | BR2 |      | BR1 |
+                  +-----+      +-----+
+     IP A ---------->*            *<---------- IP B
+     Interface=I1    |            |            Interface=I2
+                     |            |
+                     |            |
+   ------------------+------------+-----+--------+--------+--------+--
+                                        ^        ^        ^        ^
+                                        |        |        |        |
+                                      (IP A)   (IP A)   (IP A)   (IP A)
+                                        |        |        |        |
+                                     +--+--+  +--+--+  +--+--+  +--+--+
+                                     |  H1 |  |  H2 |  |  H3 |  |  H4 |
+                                     +-----+  +-----+  +--+--+  +--+--+
+
+
+
+            -----   MIB Tables For VRRP Router "IP A":   -----
+
+   vrrpOperTable
+   -------------
+
+      | if | VrId | State | Prior | AddrCnt | IpAddr | ... | RowStat |
+      +----+------+-------+-------+---------+--------+-( )-+---------+
+      |    |      |       |       |         |        |     |         |
+      | I1 |  01  |   M   |  255  |   1     |   A    |     | active  |
+      |    |      |       |       |         |        |     |         |
+      +----+------+-------+-------+---------+--------+-( )-+---------+
+      |    |      |       |       |         |        |     |         |
+      | I1 |  02  |   B   | 1-254 |   1     |   B    |     | active  |
+      |    |      |       |       |         |        |     |         |
+      +----+------+-------+-------+---------+--------+-( )-+---------+
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+Jewell & Chuang             Standards Track                     [Page 6]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
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+   vrrpAssoIpAddrTable
+   -------------------
+
+      | if | VrId |  IP   | RowStat |
+      +----+------+-------+---------+
+      |    |      |       |         |
+      | I1 |  01  |   A   | active  |
+      |    |      |       |         |
+      +----+------+-------+---------+
+      |    |      |       |         |
+      | I1 |  02  |   B   | active  |
+      |    |      |       |         |
+      +----+------+-------+---------+
+
+
+
+            -----   MIB Tables For VRRP Router "IP B":   -----
+
+   vrrpOperTable
+   -------------
+
+      | if | VrId | State | Prior | AddrCnt | IpAddr | ... | RowStat |
+      +----+------+-------+-------+---------+--------+-( )-+---------+
+      |    |      |       |       |         |        |     |         |
+      | I2 |  01  |   B   | 1-254 |    1    |   A    |     | active  |
+      |    |      |       |       |         |        |     |         |
+      +----+------+-------+-------+---------+--------+-( )-+---------+
+      |    |      |       |       |         |        |     |         |
+      | I2 |  02  |   M   |  255  |    1    |   B    |     | active  |
+      |    |      |       |       |         |        |     |         |
+      +----+------+-------+-------+---------+--------+-( )-+---------+
+
+   vrrpAssoIpAddrTable
+   -------------------
+
+      | if | VrId |  IP   | RowStat |
+      +----+------+-------+---------+
+      |    |      |       |         |
+      | I2 |  01  |   A   | active  |
+      |    |      |       |         |
+      +----+------+-------+---------+
+      |    |      |       |         |
+      | I2 |  02  |   B   | active  |
+      |    |      |       |         |
+      +----+------+-------+---------+
+
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+Jewell & Chuang             Standards Track                     [Page 7]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+   NOTES:
+
+   1)  "I1" and "I2" are used to designate IF indices on each respective
+       router.
+
+   2)  For "State": M = Master; B = Backup.
+
+   3)  In the vrrpOperTable, a "priority" of 255 indicates that the
+       respective router owns the IP address, e.g., this IP address is
+       native to the router (i.e., "the IP Address Owner" [17]).
+
+2.4.2.  VRRP Scenario #2
+
+   The following figure shows a simple network with two virtual routers.
+   Here, a single interface has been configured with two IP addresses.
+   Again, addresses in () indicate the IP address of the default gateway
+   for a given host, H1 - H2.
+
+                   VRID=1       VRID=2
+                  +-----+      +-----+
+                  | MR1 |      | MR2 |
+                  |  &  |      |  &  |
+                  | BR2 |      | BR1 |
+                  +-----+      +-----+
+     IP A ---------->*            *<---------- IP B
+     IP C            |            |            Interface=I2
+     Interface=I1    |            |
+                     |            |
+                     |            |
+   ------------------+------------+-----+--------+
+                                        ^        ^
+                                        |        |
+                                      (IP A)   (IP B)
+                                        |        |
+                                     +--+--+  +--+--+
+                                     |  H1 |  |  H2 |
+                                     +-----+  +-----+
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+Jewell & Chuang             Standards Track                     [Page 8]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
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+            -----   MIB Tables For VRRP Router "IP A":   -----
+
+   vrrpOperTable
+   -------------
+
+      | if | VrId | State | Prior | AddrCnt | IpAddr | ... | RowStat |
+      +----+------+-------+-------+---------+--------+-( )-+---------+
+      |    |      |       |       |         |        |     |         |
+      | I1 |  01  |   M   |  255  |    2    |   A    |     | active  |
+      |    |      |       |       |         |        |     |         |
+      +----+------+-------+-------+---------+--------+-( )-+---------+
+      |    |      |       |       |         |        |     |         |
+      | I1 |  02  |   B   | 1-254 |    1    |   B    |     | active  |
+      |    |      |       |       |         |        |     |         |
+      +----+------+-------+-------+---------+--------+-( )-+---------+
+
+   vrrpAssoIpAddrTable
+   -------------------
+
+      | if | VrId |  IP   | RowStat |
+      +----+------+-------+---------+
+      |    |      |       |         |
+      | I1 |  01  |   A   | active  |
+      |    |      |       |         |
+      +----+------+-------+---------+
+      |    |      |       |         |
+      | I1 |  01  |   C   | active  |
+      |    |      |       |         |
+      +----+------+-------+---------+
+      |    |      |       |         |
+      | I1 |  02  |   B   | active  |
+      |    |      |       |         |
+      +----+------+-------+---------+
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+Jewell & Chuang             Standards Track                     [Page 9]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
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+            -----   MIB Tables For VRRP Router "IP B":   -----
+
+   vrrpOperTable
+   -------------
+
+      | if | VrId | State | Prior | AddrCnt | IpAddr | ... | RowStat |
+      +----+------+-------+-------+---------+--------+-( )-+---------+
+      |    |      |       |       |         |        |     |         |
+      | I2 |  01  |   B   | 1-254 |    2    |   A    |     | active  |
+      |    |      |       |       |         |        |     |         |
+      +----+------+-------+-------+---------+--------+-( )-+---------+
+      |    |      |       |       |         |        |     |         |
+      | I2 |  02  |   M   |  255  |    1    |   B    |     | active  |
+      |    |      |       |       |         |        |     |         |
+      +----+------+-------+-------+---------+--------+-( )-+---------+
+
+   vrrpAssoIpAddrTable
+   -------------------
+
+      | if | VrId |  IP   | RowStat |
+      +----+------+-------+---------+
+      |    |      |       |         |
+      | I2 |  01  |   A   | active  |
+      |    |      |       |         |
+      +----+------+-------+---------+
+      |    |      |       |         |
+      | I2 |  01  |   C   | active  |
+      |    |      |       |         |
+      +----+------+-------+---------+
+      |    |      |       |         |
+      | I2 |  02  |   B   | active  |
+      |    |      |       |         |
+      +----+------+-------+---------+
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+Jewell & Chuang             Standards Track                    [Page 10]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+3. Definitions
+
+VRRP-MIB DEFINITIONS ::= BEGIN
+
+ IMPORTS
+     MODULE-IDENTITY, OBJECT-TYPE,
+     NOTIFICATION-TYPE, Counter32,
+     Integer32, IpAddress, mib-2         FROM SNMPv2-SMI
+
+     TEXTUAL-CONVENTION, RowStatus,
+     MacAddress, TruthValue, TimeStamp   FROM SNMPv2-TC
+
+     MODULE-COMPLIANCE, OBJECT-GROUP,
+     NOTIFICATION-GROUP                  FROM SNMPv2-CONF
+     ifIndex                             FROM IF-MIB;
+
+
+ vrrpMIB  MODULE-IDENTITY
+     LAST-UPDATED "200003030000Z"
+     ORGANIZATION "IETF VRRP Working Group"
+     CONTACT-INFO
+            "Brian R. Jewell
+     Postal: Copper Mountain Networks, Inc.
+             2470 Embarcadero Way
+             Palo Alto, California 94303
+     Tel:    +1 650 687 3367
+     E-Mail: bjewell@coppermountain.com"
+
+     DESCRIPTION
+         "This MIB describes objects used for managing Virtual Router
+          Redundancy Protocol (VRRP) routers."
+     REVISION "200003030000Z"    -- 03 Mar 2000
+     DESCRIPTION "Initial version as published in RFC 2787."
+     ::= { mib-2 68 }
+
+-- *******************************************************************
+--  Textual Conventions
+-- *******************************************************************
+
+ VrId ::= TEXTUAL-CONVENTION
+     STATUS       current
+     DESCRIPTION
+         "A number which, along with an interface index (ifIndex),
+         serves to uniquely identify a virtual router on a given VRRP
+         router. A set of one or more associated addresses is assigned
+         to a VRID."
+     SYNTAX      Integer32 (1..255)
+
+
+
+
+Jewell & Chuang             Standards Track                    [Page 11]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+-- *******************************************************************
+--  VRRP MIB Groups
+-- *******************************************************************
+
+ vrrpOperations      OBJECT IDENTIFIER ::= { vrrpMIB 1 }
+ vrrpStatistics      OBJECT IDENTIFIER ::= { vrrpMIB 2 }
+ vrrpConformance     OBJECT IDENTIFIER ::= { vrrpMIB 3 }
+
+
+-- *******************************************************************
+--  Start of MIB objects
+-- *******************************************************************
+
+ vrrpNodeVersion  OBJECT-TYPE
+     SYNTAX       Integer32
+     MAX-ACCESS   read-only
+     STATUS       current
+     DESCRIPTION
+        "This value identifies the particular version of the VRRP
+         supported by this node."
+     ::= { vrrpOperations 1 }
+
+ vrrpNotificationCntl  OBJECT-TYPE
+     SYNTAX       INTEGER {
+         enabled     (1),
+         disabled    (2)
+     }
+     MAX-ACCESS   read-write
+     STATUS       current
+     DESCRIPTION
+        "Indicates whether the VRRP-enabled router will generate
+         SNMP traps for events defined in this MIB. 'Enabled'
+         results in SNMP traps; 'disabled', no traps are sent."
+     DEFVAL { enabled }
+     ::= { vrrpOperations 2 }
+
+-- *******************************************************************
+--  VRRP Operations Table
+-- *******************************************************************
+
+ vrrpOperTable OBJECT-TYPE
+     SYNTAX       SEQUENCE OF VrrpOperEntry
+     MAX-ACCESS   not-accessible
+     STATUS       current
+     DESCRIPTION
+         "Operations table for a VRRP router which consists of a
+          sequence (i.e., one or more conceptual rows) of
+          'vrrpOperEntry' items."
+
+
+
+Jewell & Chuang             Standards Track                    [Page 12]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
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+     ::= { vrrpOperations 3 }
+
+ vrrpOperEntry OBJECT-TYPE
+     SYNTAX       VrrpOperEntry
+     MAX-ACCESS   not-accessible
+     STATUS       current
+     DESCRIPTION
+         "An entry in the vrrpOperTable containing the operational
+          characteristics of a virtual router. On a VRRP router,
+          a given virtual router is identified by a combination
+          of the IF index and VRID.
+
+          Rows in the table cannot be modified unless the value
+          of `vrrpOperAdminState' is `disabled' and the
+          `vrrpOperState' has transitioned to `initialize'."
+
+     INDEX    { ifIndex, vrrpOperVrId }
+     ::= { vrrpOperTable 1 }
+
+ VrrpOperEntry ::=
+     SEQUENCE {
+         vrrpOperVrId
+             VrId,
+         vrrpOperVirtualMacAddr
+             MacAddress,
+         vrrpOperState
+             INTEGER,
+         vrrpOperAdminState
+             INTEGER,
+         vrrpOperPriority
+             Integer32,
+         vrrpOperIpAddrCount
+             Integer32,
+         vrrpOperMasterIpAddr
+             IpAddress,
+         vrrpOperPrimaryIpAddr
+             IpAddress,
+         vrrpOperAuthType
+             INTEGER,
+         vrrpOperAuthKey
+             OCTET STRING,
+         vrrpOperAdvertisementInterval
+             Integer32,
+         vrrpOperPreemptMode
+             TruthValue,
+         vrrpOperVirtualRouterUpTime
+             TimeStamp,
+         vrrpOperProtocol
+
+
+
+Jewell & Chuang             Standards Track                    [Page 13]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+             INTEGER,
+         vrrpOperRowStatus
+             RowStatus
+ }
+
+ vrrpOperVrId OBJECT-TYPE
+     SYNTAX       VrId
+     MAX-ACCESS   not-accessible
+     STATUS       current
+     DESCRIPTION
+         "This object contains the Virtual Router Identifier (VRID)."
+     ::= { vrrpOperEntry 1 }
+
+ vrrpOperVirtualMacAddr OBJECT-TYPE
+     SYNTAX       MacAddress
+     MAX-ACCESS   read-only
+     STATUS       current
+     DESCRIPTION
+         "The virtual MAC address of the virtual router. Although this
+         object can be derived from the 'vrrpOperVrId' object, it is
+         defined so that it is easily obtainable by a management
+         application and can be included in VRRP-related SNMP traps."
+     ::= { vrrpOperEntry 2 }
+
+ vrrpOperState OBJECT-TYPE
+     SYNTAX       INTEGER {
+         initialize(1),
+         backup(2),
+         master(3)
+     }
+     MAX-ACCESS   read-only
+     STATUS       current
+
+     DESCRIPTION
+         "The current state of the virtual router. This object has
+         three defined values:
+
+           - `initialize', which indicates that all the
+             virtual router is waiting for a startup event.
+
+           - `backup', which indicates the virtual router is
+             monitoring the availability of the master router.
+
+           - `master', which indicates that the virtual router
+             is forwarding packets for IP addresses that are
+             associated with this router.
+
+         Setting the `vrrpOperAdminState' object (below) initiates
+
+
+
+Jewell & Chuang             Standards Track                    [Page 14]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+         transitions in the value of this object."
+     ::= { vrrpOperEntry 3 }
+
+ vrrpOperAdminState OBJECT-TYPE
+     SYNTAX       INTEGER {
+         up(1),
+         down(2)
+     }
+     MAX-ACCESS   read-create
+     STATUS       current
+     DESCRIPTION
+         "This object will enable/disable the virtual router
+         function. Setting the value to `up', will transition
+         the state of the virtual router from `initialize' to `backup'
+         or `master', depending on the value of `vrrpOperPriority'.
+         Setting the value to `down', will transition  the
+         router from `master' or `backup' to `initialize'. State
+         transitions may not be immediate; they sometimes depend on
+         other factors, such as the interface (IF) state.
+
+         The `vrrpOperAdminState' object must be set to `down' prior
+         to modifying the other read-create objects in the conceptual
+         row. The value of the `vrrpOperRowStatus' object (below)
+         must be `active', signifying that the conceptual row
+         is valid (i.e., the objects are correctly set),
+         in order for this object to be set to `up'."
+     DEFVAL    { down }
+     ::= { vrrpOperEntry 4 }
+
+ vrrpOperPriority OBJECT-TYPE
+     SYNTAX       Integer32 (0..255)
+     MAX-ACCESS   read-create
+     STATUS       current
+     DESCRIPTION
+         "This object specifies the priority to be used for the
+         virtual router master election process. Higher values imply
+         higher priority.
+
+         A priority of '0', although not settable, is sent by
+         the master router to indicate that this router has ceased
+         to participate in VRRP and a backup virtual router should
+         transition  to become a new master.
+
+         A priority of 255 is used for the router that owns the
+         associated IP address(es)."
+     DEFVAL       { 100 }
+     ::= { vrrpOperEntry 5 }
+
+
+
+
+Jewell & Chuang             Standards Track                    [Page 15]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+ vrrpOperIpAddrCount OBJECT-TYPE
+     SYNTAX       Integer32 (0..255)
+     MAX-ACCESS   read-only
+     STATUS       current
+     DESCRIPTION
+         "The number of IP addresses that are associated with this
+         virtual router. This number is equal to the number of rows
+         in the vrrpAssoIpAddrTable that correspond to a given IF
+         index/VRID pair."
+     ::= { vrrpOperEntry 6 }
+
+ vrrpOperMasterIpAddr OBJECT-TYPE
+     SYNTAX       IpAddress
+     MAX-ACCESS   read-only
+     STATUS       current
+     DESCRIPTION
+         "The master router's real (primary) IP address. This is
+         the IP address listed as the source in VRRP advertisement
+         last received by this virtual router."
+     ::= { vrrpOperEntry 7 }
+
+ vrrpOperPrimaryIpAddr OBJECT-TYPE
+     SYNTAX       IpAddress
+     MAX-ACCESS   read-create
+     STATUS       current
+     DESCRIPTION
+         "In the case where there is more than one IP address for
+         a given `ifIndex', this object is used to specify the IP
+         address that will become the `vrrpOperMasterIpAddr', should
+         the virtual router transition from backup to master. If
+         this object is set to 0.0.0.0, the IP address which is
+         numerically lowest will be selected."
+     DEFVAL       { '00000000'H } -- 0.0.0.0
+     ::= { vrrpOperEntry 8 }
+
+ vrrpOperAuthType OBJECT-TYPE
+     SYNTAX       INTEGER {
+         noAuthentication(1),       -- VRRP protocol exchanges are not
+                                    -- authenticated.
+         simpleTextPassword(2),     -- Exchanges are authenticated by a
+                                    -- clear text password.
+         ipAuthenticationHeader(3)  -- Exchanges are authenticated using
+                                    -- the IP authentication header.
+     }
+     MAX-ACCESS   read-create
+     STATUS       current
+     DESCRIPTION
+
+
+
+
+Jewell & Chuang             Standards Track                    [Page 16]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+         "Authentication type used for VRRP protocol exchanges between
+         virtual routers. This value of this object is the same for a
+         given ifIndex.
+
+         New enumerations to this list can only be added via a new
+         RFC on the standards track."
+     DEFVAL       { noAuthentication }
+     ::= { vrrpOperEntry 9 }
+
+ vrrpOperAuthKey OBJECT-TYPE
+     SYNTAX       OCTET STRING (SIZE (0..16))
+     MAX-ACCESS   read-create
+     STATUS       current
+     DESCRIPTION
+         "The Authentication Key. This object is set according to
+         the value of the 'vrrpOperAuthType' object
+         ('simpleTextPassword' or 'ipAuthenticationHeader'). If the
+         length of the value is less than 16 octets, the agent will
+         left adjust and zero fill to 16 octets. The value of this
+         object is the same for a given ifIndex.
+
+         When read, vrrpOperAuthKey always returns an Octet String
+         of length zero."
+     ::= { vrrpOperEntry 10 }
+
+ vrrpOperAdvertisementInterval OBJECT-TYPE
+     SYNTAX       Integer32 (1..255)
+     UNITS        "seconds"
+     MAX-ACCESS   read-create
+     STATUS       current
+     DESCRIPTION
+         "The time interval, in seconds, between sending
+         advertisement messages. Only the master router sends
+         VRRP advertisements."
+     DEFVAL       { 1 }
+     ::= { vrrpOperEntry 11 }
+
+ vrrpOperPreemptMode OBJECT-TYPE
+     SYNTAX       TruthValue
+     MAX-ACCESS   read-create
+     STATUS       current
+     DESCRIPTION
+         "Controls whether a higher priority virtual router will
+         preempt a lower priority master."
+     DEFVAL       { true }
+     ::= { vrrpOperEntry 12 }
+
+ vrrpOperVirtualRouterUpTime OBJECT-TYPE
+
+
+
+Jewell & Chuang             Standards Track                    [Page 17]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+     SYNTAX       TimeStamp
+     MAX-ACCESS   read-only
+     STATUS       current
+     DESCRIPTION
+         "This is the value of the `sysUpTime' object when this
+         virtual router (i.e., the `vrrpOperState') transitioned
+         out of `initialized'."
+     ::= { vrrpOperEntry 13 }
+
+ vrrpOperProtocol OBJECT-TYPE
+     SYNTAX   INTEGER {
+         ip (1),
+         bridge (2),
+         decnet (3),
+         other (4)
+     }
+     MAX-ACCESS read-create
+     STATUS     current
+     DESCRIPTION
+         "The particular protocol being controlled by this Virtual
+         Router.
+
+         New enumerations to this list can only be added via a new
+         RFC on the standards track."
+     DEFVAL { ip }
+     ::= { vrrpOperEntry 14 }
+
+ vrrpOperRowStatus OBJECT-TYPE
+     SYNTAX       RowStatus
+     MAX-ACCESS   read-create
+     STATUS       current
+     DESCRIPTION
+         "The row status variable, used in accordance to installation
+         and removal conventions for conceptual rows. The rowstatus of
+         a currently active row in the vrrpOperTable is constrained
+         by the operational state of the corresponding virtual router.
+         When `vrrpOperRowStatus' is set to active(1), no other
+         objects in the conceptual row, with the exception of
+         `vrrpOperAdminState', can be modified. Prior to setting the
+         `vrrpOperRowStatus' object from `active' to a different value,
+         the `vrrpOperAdminState' object must be set to `down' and the
+         `vrrpOperState' object be transitioned to `initialize'.
+
+         To create a row in this table, a manager sets this object
+         to either createAndGo(4) or createAndWait(5). Until instances
+         of all corresponding columns are appropriately configured,
+         the value of the corresponding instance of the `vrrpOperRowStatus'
+         column will be read as notReady(3).
+
+
+
+Jewell & Chuang             Standards Track                    [Page 18]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+         In particular, a newly created row cannot be made active(1)
+         until (minimally) the corresponding instance of
+         `vrrpOperVrId' has been set and there is at least one active
+         row in the `vrrpAssoIpAddrTable' defining an associated
+         IP address for the virtual router."
+     ::= { vrrpOperEntry 15 }
+
+
+-- *******************************************************************
+--  VRRP Associated IP Address Table
+-- *******************************************************************
+
+ vrrpAssoIpAddrTable OBJECT-TYPE
+     SYNTAX       SEQUENCE OF VrrpAssoIpAddrEntry
+     MAX-ACCESS   not-accessible
+     STATUS       current
+     DESCRIPTION
+         "The table of addresses associated with this virtual router."
+     ::= { vrrpOperations 4 }
+
+ vrrpAssoIpAddrEntry OBJECT-TYPE
+     SYNTAX       VrrpAssoIpAddrEntry
+     MAX-ACCESS   not-accessible
+     STATUS       current
+     DESCRIPTION
+         "An entry in the table contains an IP address that is
+         associated with a virtual router. The number of rows for
+         a given ifIndex and VrId will equal the number of IP
+         addresses associated (e.g., backed up) by the virtual
+         router (equivalent to 'vrrpOperIpAddrCount').
+
+         Rows in the table cannot be modified unless the value
+         of `vrrpOperAdminState' is `disabled' and the
+         `vrrpOperState' has transitioned to `initialize'."
+
+     INDEX    { ifIndex, vrrpOperVrId, vrrpAssoIpAddr }
+     ::= { vrrpAssoIpAddrTable 1 }
+
+ VrrpAssoIpAddrEntry ::=
+     SEQUENCE {
+         vrrpAssoIpAddr
+             IpAddress,
+         vrrpAssoIpAddrRowStatus
+             RowStatus
+ }
+
+ vrrpAssoIpAddr OBJECT-TYPE
+     SYNTAX       IpAddress
+
+
+
+Jewell & Chuang             Standards Track                    [Page 19]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+     MAX-ACCESS   not-accessible
+     STATUS       current
+     DESCRIPTION
+         "The assigned IP addresses that a virtual router is
+         responsible for backing up."
+     ::= { vrrpAssoIpAddrEntry 1 }
+
+ vrrpAssoIpAddrRowStatus OBJECT-TYPE
+     SYNTAX       RowStatus
+     MAX-ACCESS   read-create
+     STATUS       current
+     DESCRIPTION
+         "The row status variable, used according to installation
+         and removal conventions for conceptual rows. Setting this
+         object to active(1) or createAndGo(4) results in the
+         addition of an associated address for a virtual router.
+         Destroying the entry or setting it to notInService(2)
+         removes the associated address from the virtual router.
+         The use of other values is implementation-dependent."
+     ::= { vrrpAssoIpAddrEntry 2 }
+
+
+-- *******************************************************************
+--  VRRP Router Statistics
+-- *******************************************************************
+
+ vrrpRouterChecksumErrors OBJECT-TYPE
+     SYNTAX       Counter32
+     MAX-ACCESS   read-only
+     STATUS       current
+     DESCRIPTION
+         "The total number of VRRP packets received with an invalid
+         VRRP checksum value."
+     ::= { vrrpStatistics 1 }
+
+ vrrpRouterVersionErrors OBJECT-TYPE
+     SYNTAX       Counter32
+     MAX-ACCESS   read-only
+     STATUS       current
+     DESCRIPTION
+         "The total number of VRRP packets received with an unknown
+         or unsupported version number."
+     ::= { vrrpStatistics 2 }
+
+ vrrpRouterVrIdErrors OBJECT-TYPE
+     SYNTAX       Counter32
+     MAX-ACCESS   read-only
+     STATUS       current
+
+
+
+Jewell & Chuang             Standards Track                    [Page 20]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+     DESCRIPTION
+         "The total number of VRRP packets received with an invalid
+         VRID for this virtual router."
+     ::= { vrrpStatistics 3 }
+
+-- *******************************************************************
+--  VRRP Router Statistics Table
+-- *******************************************************************
+
+ vrrpRouterStatsTable OBJECT-TYPE
+     SYNTAX       SEQUENCE OF VrrpRouterStatsEntry
+     MAX-ACCESS   not-accessible
+     STATUS       current
+     DESCRIPTION
+         "Table of virtual router statistics."
+     ::= { vrrpStatistics 4 }
+
+ vrrpRouterStatsEntry OBJECT-TYPE
+     SYNTAX       VrrpRouterStatsEntry
+     MAX-ACCESS   not-accessible
+     STATUS       current
+     DESCRIPTION
+         "An entry in the table, containing statistics information
+         about a given virtual router."
+     AUGMENTS    { vrrpOperEntry }
+     ::= { vrrpRouterStatsTable 1 }
+
+ VrrpRouterStatsEntry ::=
+     SEQUENCE {
+         vrrpStatsBecomeMaster
+             Counter32,
+         vrrpStatsAdvertiseRcvd
+             Counter32,
+         vrrpStatsAdvertiseIntervalErrors
+             Counter32,
+         vrrpStatsAuthFailures
+             Counter32,
+         vrrpStatsIpTtlErrors
+             Counter32,
+         vrrpStatsPriorityZeroPktsRcvd
+             Counter32,
+         vrrpStatsPriorityZeroPktsSent
+             Counter32,
+         vrrpStatsInvalidTypePktsRcvd
+             Counter32,
+         vrrpStatsAddressListErrors
+             Counter32,
+         vrrpStatsInvalidAuthType
+
+
+
+Jewell & Chuang             Standards Track                    [Page 21]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+             Counter32,
+         vrrpStatsAuthTypeMismatch
+             Counter32,
+         vrrpStatsPacketLengthErrors
+             Counter32
+     }
+
+ vrrpStatsBecomeMaster OBJECT-TYPE
+     SYNTAX       Counter32
+     MAX-ACCESS   read-only
+     STATUS       current
+     DESCRIPTION
+         "The total number of times that this virtual router's state
+         has transitioned to MASTER."
+     ::= { vrrpRouterStatsEntry 1 }
+
+ vrrpStatsAdvertiseRcvd OBJECT-TYPE
+     SYNTAX       Counter32
+     MAX-ACCESS   read-only
+     STATUS       current
+     DESCRIPTION
+         "The total number of VRRP advertisements received by this
+         virtual router."
+     ::= { vrrpRouterStatsEntry 2 }
+
+ vrrpStatsAdvertiseIntervalErrors OBJECT-TYPE
+     SYNTAX       Counter32
+     MAX-ACCESS   read-only
+     STATUS       current
+     DESCRIPTION
+         "The total number of VRRP advertisement packets received
+         for which the advertisement interval is different than the
+         one configured for the local virtual router."
+     ::= { vrrpRouterStatsEntry 3 }
+
+ vrrpStatsAuthFailures OBJECT-TYPE
+     SYNTAX       Counter32
+     MAX-ACCESS   read-only
+     STATUS       current
+     DESCRIPTION
+         "The total number of VRRP packets received that do not pass
+         the authentication check."
+     ::= { vrrpRouterStatsEntry 4 }
+
+ vrrpStatsIpTtlErrors OBJECT-TYPE
+     SYNTAX       Counter32
+     MAX-ACCESS   read-only
+     STATUS       current
+
+
+
+Jewell & Chuang             Standards Track                    [Page 22]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+     DESCRIPTION
+         "The total number of VRRP packets received by the virtual
+         router with IP TTL (Time-To-Live) not equal to 255."
+     ::= { vrrpRouterStatsEntry 5 }
+
+ vrrpStatsPriorityZeroPktsRcvd OBJECT-TYPE
+     SYNTAX       Counter32
+     MAX-ACCESS   read-only
+     STATUS       current
+     DESCRIPTION
+         "The total number of VRRP packets received by the virtual
+         router with a priority of '0'."
+     ::= { vrrpRouterStatsEntry 6 }
+
+ vrrpStatsPriorityZeroPktsSent OBJECT-TYPE
+     SYNTAX       Counter32
+     MAX-ACCESS   read-only
+     STATUS       current
+     DESCRIPTION
+         "The total number of VRRP packets sent by the virtual router
+         with a priority of '0'."
+     ::= { vrrpRouterStatsEntry 7 }
+
+ vrrpStatsInvalidTypePktsRcvd OBJECT-TYPE
+     SYNTAX       Counter32
+     MAX-ACCESS   read-only
+     STATUS       current
+     DESCRIPTION
+         "The number of VRRP packets received by the virtual router
+         with an invalid value in the 'type' field."
+     ::= { vrrpRouterStatsEntry 8 }
+
+ vrrpStatsAddressListErrors OBJECT-TYPE
+     SYNTAX       Counter32
+     MAX-ACCESS   read-only
+     STATUS       current
+     DESCRIPTION
+         "The total number of packets received for which the address
+         list does not match the locally configured list for the
+         virtual router."
+     ::= { vrrpRouterStatsEntry 9 }
+
+ vrrpStatsInvalidAuthType OBJECT-TYPE
+     SYNTAX       Counter32
+     MAX-ACCESS   read-only
+     STATUS       current
+     DESCRIPTION
+         "The total number of packets received with an unknown
+
+
+
+Jewell & Chuang             Standards Track                    [Page 23]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+         authentication type."
+     ::= { vrrpRouterStatsEntry 10 }
+
+ vrrpStatsAuthTypeMismatch OBJECT-TYPE
+     SYNTAX       Counter32
+     MAX-ACCESS   read-only
+     STATUS       current
+     DESCRIPTION
+         "The total number of packets received with 'Auth Type' not
+         equal to the locally configured authentication method
+         (`vrrpOperAuthType')."
+     ::= { vrrpRouterStatsEntry 11 }
+
+ vrrpStatsPacketLengthErrors OBJECT-TYPE
+     SYNTAX       Counter32
+     MAX-ACCESS   read-only
+     STATUS       current
+     DESCRIPTION
+         "The total number of packets received with a packet length
+         less than the length of the VRRP header."
+     ::= { vrrpRouterStatsEntry 12 }
+
+-- *******************************************************************
+--   Trap Definitions
+-- *******************************************************************
+
+ vrrpNotifications   OBJECT IDENTIFIER ::= { vrrpMIB 0 }
+
+ vrrpTrapPacketSrc OBJECT-TYPE
+     SYNTAX       IpAddress
+     MAX-ACCESS   accessible-for-notify
+     STATUS       current
+     DESCRIPTION
+         "The IP address of an inbound VRRP packet. Used by
+          vrrpTrapAuthFailure trap."
+     ::= { vrrpOperations 5 }
+
+ vrrpTrapAuthErrorType OBJECT-TYPE
+     SYNTAX        INTEGER {
+         invalidAuthType (1),
+         authTypeMismatch (2),
+         authFailure (3)
+     }
+     MAX-ACCESS   accessible-for-notify
+     STATUS       current
+     DESCRIPTION
+         "Potential types of configuration conflicts.
+         Used by vrrpAuthFailure trap."
+
+
+
+Jewell & Chuang             Standards Track                    [Page 24]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+     ::= { vrrpOperations 6 }
+
+ vrrpTrapNewMaster NOTIFICATION-TYPE
+     OBJECTS      { vrrpOperMasterIpAddr
+                  }
+     STATUS       current
+     DESCRIPTION
+         "The newMaster trap indicates that the sending agent
+         has transitioned to 'Master' state."
+     ::= { vrrpNotifications 1 }
+
+ vrrpTrapAuthFailure NOTIFICATION-TYPE
+     OBJECTS      { vrrpTrapPacketSrc,
+                    vrrpTrapAuthErrorType
+                  }
+     STATUS       current
+     DESCRIPTION
+         "A vrrpAuthFailure trap signifies that a packet has
+         been received from a router whose authentication key
+         or authentication type conflicts with this router's
+         authentication key or authentication type. Implementation
+         of this trap is optional."
+     ::= { vrrpNotifications 2 }
+
+
+-- *******************************************************************
+--  Conformance Information
+-- *******************************************************************
+
+ vrrpMIBCompliances  OBJECT IDENTIFIER ::= { vrrpConformance 1 }
+ vrrpMIBGroups       OBJECT IDENTIFIER ::= { vrrpConformance 2 }
+
+-- ...................................................................
+-- Compliance Statements
+-- ...................................................................
+
+ vrrpMIBCompliance MODULE-COMPLIANCE
+     STATUS current
+     DESCRIPTION
+        "The core compliance statement for all VRRP implementations."
+     MODULE -- this module
+     MANDATORY-GROUPS  {
+         vrrpOperGroup,
+         vrrpStatsGroup
+     }
+     OBJECT        vrrpOperPriority
+     WRITE-SYNTAX  Integer32 (1..255)
+     DESCRIPTION  "SETable values are from 1 to 255."
+
+
+
+Jewell & Chuang             Standards Track                    [Page 25]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+     ::= { vrrpMIBCompliances 1 }
+
+-- ...................................................................
+-- Conformance Groups
+-- ...................................................................
+
+ vrrpOperGroup  OBJECT-GROUP
+     OBJECTS  {
+         vrrpNodeVersion,
+         vrrpNotificationCntl,
+         vrrpOperVirtualMacAddr,
+         vrrpOperState,
+         vrrpOperAdminState,
+         vrrpOperPriority,
+         vrrpOperIpAddrCount,
+         vrrpOperMasterIpAddr,
+         vrrpOperPrimaryIpAddr,
+         vrrpOperAuthType,
+         vrrpOperAuthKey,
+         vrrpOperAdvertisementInterval,
+         vrrpOperPreemptMode,
+         vrrpOperVirtualRouterUpTime,
+         vrrpOperProtocol,
+         vrrpOperRowStatus,
+         vrrpAssoIpAddrRowStatus
+         }
+     STATUS current
+     DESCRIPTION
+        "Conformance group for VRRP operations."
+     ::= { vrrpMIBGroups 1 }
+
+ vrrpStatsGroup  OBJECT-GROUP
+     OBJECTS  {
+         vrrpRouterChecksumErrors,
+         vrrpRouterVersionErrors,
+         vrrpRouterVrIdErrors,
+         vrrpStatsBecomeMaster,
+         vrrpStatsAdvertiseRcvd,
+         vrrpStatsAdvertiseIntervalErrors,
+         vrrpStatsAuthFailures,
+         vrrpStatsIpTtlErrors,
+         vrrpStatsPriorityZeroPktsRcvd,
+         vrrpStatsPriorityZeroPktsSent,
+         vrrpStatsInvalidTypePktsRcvd,
+         vrrpStatsAddressListErrors,
+         vrrpStatsInvalidAuthType,
+         vrrpStatsAuthTypeMismatch,
+         vrrpStatsPacketLengthErrors
+
+
+
+Jewell & Chuang             Standards Track                    [Page 26]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+         }
+     STATUS current
+     DESCRIPTION
+        "Conformance group for VRRP statistics."
+     ::= { vrrpMIBGroups 2 }
+
+ vrrpTrapGroup  OBJECT-GROUP
+     OBJECTS  {
+         vrrpTrapPacketSrc,
+         vrrpTrapAuthErrorType
+         }
+     STATUS current
+     DESCRIPTION
+        "Conformance group for objects contained in VRRP notifications."
+     ::= { vrrpMIBGroups 3 }
+
+ vrrpNotificationGroup NOTIFICATION-GROUP
+     NOTIFICATIONS {
+         vrrpTrapNewMaster,
+         vrrpTrapAuthFailure
+         }
+     STATUS current
+     DESCRIPTION
+        "The VRRP MIB Notification Group."
+     ::= { vrrpMIBGroups 4 }
+
+END
+
+4.  Security Considerations
+
+   There are a number of management objects defined in this MIB that
+   have a MAX-ACCESS clause of read-write or read-create. Such objects
+   may be considered sensitive or vulnerable to security attacks in some
+   networking environments. The support for SET operations in a non-
+   secure environment without proper protection can have a negative
+   effect on VRRP router operations.
+
+   A number of objects in the vrrpOperTable possess the read-create
+   attribute. Manipulation of these objects is capable of affecting the
+   operation of a virtual router.
+
+   Specific examples of this include, but are not limited to:
+
+   o The vrrpOperAdminState object which could be used to disable a
+     virtual router.
+
+   o The vrrpOperPrimaryIpAddr object which, if compromised, could allow
+     assignment of an invalid IP address to a master router.
+
+
+
+Jewell & Chuang             Standards Track                    [Page 27]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+   o The authentication type/key related objects which could potentially
+     render the VRRP security mechanisms ineffective.
+
+   Of additional concern is the ability to disable the transmission of
+   traps. This would nullify the capability of a virtual router to
+   provide notification in the event of an authentication failure.
+
+   SNMPv1 by itself is not a secure environment.  Even if the network
+   itself is secure (for example by using IPSec), even then, 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 RFC 2574 [RFC2574] and the View-
+   based Access Control Model RFC 2575 [RFC2575] is recommended.
+
+   It is then a customer/user responsibility to ensure that the SNMP
+   entity giving access to an instance of this MIB, is properly
+   configured to give access to the objects only to those principals
+   (users) that have legitimate rights to indeed GET or SET
+   (change/create/delete) them.
+
+5.  Acknowledgements
+
+   The authors would like to thank Danny Mitzel, Venkat Prasad, Al Pham,
+   Robert Hinden, Venkat Prasad, Barbera Denny, Fred Baker, Jeff Case,
+   Flavio Fernandes, Acee Lindem, Scott Barvick, and Bert Wijnen for
+   their comments and suggestions.
+
+6.  References
+
+    [1]  Harrington, D., Presuhn, R. and B. Wijnen, "An Architecture for
+         Describing SNMP Management Frameworks", RFC 2571, April 1999.
+
+    [2]  Rose, M. and K. McCloghrie, "Structure and Identification of
+         Management Information for TCP/IP-based Internets", STD 16, RFC
+         1155, May 1990.
+
+    [3]  Rose, M. and K. McCloghrie, "Concise MIB Definitions", STD 16,
+         RFC 1212, March 1991.
+
+    [4]  Rose, M., "A Convention for Defining Traps for use with the
+         SNMP", RFC 1215, March 1991.
+
+    [5]  McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
+         M. and S. Waldbusser, "Structure of Management Information
+         Version 2 (SMIv2)", STD 58, RFC 2578, April 1999.
+
+
+
+Jewell & Chuang             Standards Track                    [Page 28]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+    [6]  McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
+         M. and S. Waldbusser, "Textual Conventions for SMIv2", STD 58,
+         RFC 2579, April 1999.
+
+    [7]  McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
+         M. and S. Waldbusser, "Conformance Statements for SMIv2", STD
+         58, RFC 2580, April 1999.
+
+    [8]  Case, J., Fedor, M., Schoffstall, M. and J. Davin, "Simple
+         Network Management Protocol", STD 15, RFC 1157, May 1990.
+
+    [9]  Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
+         "Introduction to Community-based SNMPv2", RFC 1901, January
+         1996.
+
+    [10] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
+         "Transport Mappings for Version 2 of the Simple Network
+         Management Protocol (SNMPv2)", RFC 1906, January 1996.
+
+    [11] Case, J., Harrington D., Presuhn R. and B. Wijnen, "Message
+         Processing and Dispatching for the Simple Network Management
+         Protocol (SNMP)", RFC 2572, April 1999.
+
+    [12] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM)
+         for version 3 of the Simple Network Management Protocol
+         (SNMPv3)", RFC 2574, April 1999.
+
+    [13] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Protocol
+         Operations for Version 2 of the Simple Network Management
+         Protocol (SNMPv2)", RFC 1905, January 1996.
+
+    [14] Levi, D., Meyer, P. and B. Stewart, "SNMPv3 Applications", RFC
+         2573, April 1999.
+
+    [15] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access
+         Control Model (VACM) for the Simple Network Management Protocol
+         (SNMP)", RFC 2575, April 1999
+
+    [16] Case, J., Mundy, R., Partain, D. and B. Stewart, "Introduction
+         to Version 3 of the Internet-standard Network Management
+         Framework", RFC 2570, April 1999
+
+    [17] Knight, S., Weaver, D., Whipple, D., Hinden, R., Mitzel, D.,
+         Hunt, P., Higginson, P., Shand, M. and Lindem, A., "Virtual
+         Router Redundancy Protocol", RFC 2338, November 1997.
+
+    [18] McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB
+         using SMIv2", RFC 2233, November 1997.
+
+
+
+Jewell & Chuang             Standards Track                    [Page 29]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+7.  Authors' Addresses
+
+   Brian R. Jewell
+   Copper Mountain Networks, Inc.
+   2470 Embarcadero Way
+   Palo Alto, California 94303
+   US
+
+   Phone: +1 650 687 3367
+   EMail: bjewell@coppermountain.com
+
+
+   David Chuang
+   CoSine Communications
+   1200 Bridge Parkway
+   Redwood City, CA 94065
+   US
+
+   Phone: +1 650 628 4850
+   EMail: david_chuang@cosinecom.com
+
+8.  Intellectual Property Statement
+
+   The IETF takes no position regarding the validity or scope of any
+   intellectual property or other rights that might be claimed to
+   pertain to the implementation or use of the technology described in
+   this document or the extent to which any license under such rights
+   might or might not be available; neither does it represent that it
+   has made any effort to identify any such rights.  Information on the
+   IETF's procedures with respect to rights in standards-track and
+   standards- related documentation can be found in BCP-11.  Copies of
+   claims of rights made available for publication and any assurances of
+   licenses to be made available, or the result of an attempt made to
+   obtain a general license or permission for the use of such
+   proprietary rights by implementors or users of this specification can
+   be obtained from the IETF Secretariat.
+
+   The IETF invites any interested party to bring to its attention any
+   copyrights, patents or patent applications, or other proprietary
+   rights which may cover technology that may be required to practice
+   this standard.  Please address the information to the IETF Executive
+   Director.
+
+
+
+
+
+
+
+
+
+Jewell & Chuang             Standards Track                    [Page 30]
+
+RFC 2787              VRRP MIB Management Objects             March 2000
+
+
+9.  Full Copyright Statement
+
+   Copyright (C) The Internet Society (2000).  All Rights Reserved.
+
+   This document and translations of it may be copied and furnished to
+   others, and derivative works that comment on or otherwise explain it
+   or assist in its implementation may be prepared, copied, published
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+   kind, provided that the above copyright notice and this paragraph are
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+
+   The limited permissions granted above are perpetual and will not be
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+   This document and the information contained herein is provided on an
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+
+Acknowledgement
+
+   Funding for the RFC Editor function is currently provided by the
+   Internet Society.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Jewell & Chuang             Standards Track                    [Page 31]
+