<pre>Network Working Group                       D. Cong &amp; M. Hamlen, Editors
Request for Comments: 2006                                      Motorola
Category: Standards Track                             C. Perkins, Editor
                                                                     IBM
                                                            October 1996


       <span class="h1">The Definitions of Managed Objects for IP Mobility Support</span>
                              <span class="h1">using SMIv2</span>

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.

Abstract

   This memo defines the Management Information Base (MIB) for use with
   network management protocols in TCP/IP-based internets.  In
   particular, it describes managed objects used for managing the Mobile
   Node, Foreign Agent and Home Agent of the Mobile IP Protocol.

Table of Contents

   <a href="#section-1">1</a>. The Network Management Framework ......................    <a href="#page-2">2</a>
   <a href="#section-2">2</a>. Objects ...............................................    <a href="#page-2">2</a>
   <a href="#section-2.1">2.1</a> Object Definitions ...................................    <a href="#page-2">2</a>
   <a href="#section-3">3</a>. Overview ..............................................    <a href="#page-2">2</a>
   <a href="#section-3.1">3.1</a> Object Selection Criteria ............................    <a href="#page-2">2</a>
   <a href="#section-3.2">3.2</a> Structure of the Mobile IP ...........................    <a href="#page-3">3</a>
   <a href="#section-3.3">3.3</a> MIB Groups ...........................................    <a href="#page-4">4</a>
   <a href="#section-4">4</a>. Definitions ...........................................    <a href="#page-5">5</a>
   <a href="#section-5">5</a>. Acknowledgements ......................................   <a href="#page-49">49</a>
   <a href="#section-6">6</a>. Security Considerations ...............................   <a href="#page-49">49</a>
   <a href="#section-7">7</a>. References ............................................   <a href="#page-50">50</a>
   <a href="#section-8">8</a>. Chair's Address .......................................   <a href="#page-51">51</a>
   <a href="#section-9">9</a>. Editors' Addresses ....................................   <a href="#page-52">52</a>











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<span class="h2"><a class="selflink" id="section-1" href="#section-1">1</a>.  The SNMP Network Management Framework</span>

   The Internet-standard Network Management Framework presently consists
   of three major components.  They are:

      The SMI, described in <a href="./rfc1902">RFC 1902</a> [<a href="#ref-1" title="&quot;Structure of Management Information for version 2 of the Simple Network Management Protocol (SNMPv2)&quot;">1</a>] - the mechanisms used for
      describing and naming objects for the purpose of management.

      The MIB-II, STD 17, <a href="./rfc1213">RFC 1213</a> [<a href="#ref-2" title="&quot;Management Information Base for Network Management of TCP/IP-based internets: MIB-II&quot;">2</a>] - the core set of managed objects
      for the Internet suite of protocols.

      The protocol, <a href="./rfc1157">RFC 1157</a> [<a href="#ref-3" title="&quot;Simple Network Management Protocol&quot;">3</a>] and/or <a href="./rfc1905">RFC 1905</a> [<a href="#ref-4" title="&quot;Protocol Operations for version 2 of the Simple Network Management Protocol (SNMPv2)&quot;">4</a>], - the protocol for
      accessing managed objects.

   The Framework permits new objects to be defined for the purpose of
   experimentation and evaluation.

<span class="h2"><a class="selflink" id="section-2" href="#section-2">2</a>.  Objects</span>

<span class="h3"><a class="selflink" id="section-2.1" href="#section-2.1">2.1</a>.  Object Definitions</span>

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  Objects in the MIB are
   defined using the subset of Abstract Syntax Notation One (ASN.1)
   defined in the SMI.  In particular, each object type is named by an
   OBJECT IDENTIFIER, an administratively assigned name.  The object
   type together with an object instance serves to uniquely identify a
   specific instantiation of the object.  For human convenience, we
   often use a textual string, termed the descriptor, to refer to the
   object type.

<span class="h2"><a class="selflink" id="section-3" href="#section-3">3</a>.  Overview</span>

<span class="h3"><a class="selflink" id="section-3.1" href="#section-3.1">3.1</a>.  Object Selection Criteria</span>

   To be consistent with IAB directives and good engineering practice,
   the authors have applied some criteria to select managed objects for
   the Mobile IP Protocol.

   (1)  Partition management functionality among the Mobile Node, Home
   Agent, and Foreign Agent according to the partitioning seen in
   the Mobile IP Protocol.

   (2)  Require that objects be essential for either fault or
   configuration management.

   (3)  Limit the total number of objects.




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   (4)  Exclude objects which are simply derivable from others in this or
   other MIBs.

<span class="h3"><a class="selflink" id="section-3.2" href="#section-3.2">3.2</a>.  Structure of the Mobile IP</span>

   This section describes the basic model of Mobile IP used in
   developing the Mobile IP MIB. This information should be useful to
   the implementor in understanding some of the basic design decisions
   of the MIB.

   The Mobile IP Protocol introduces these new funtional entities:

   Mobile Node

      A host or router that changes its point of attachment from one
      network or subnetwork to another.  A mobile node may change its
      location without losing connectivity and without changing its IP
      address; it may continue to communicate with other Internet nodes
      at any location using its (constant) IP address, assuming link-
      layer connectivity to a point of attachment is available.

   Home Agent

      A router on a mobile node's home network which tunnels packets for
      delivery to the mobile node when it is away from home, and
      maintains current location information for the mobile node.

   Foreign Agent

      A router on a mobile node's visited network which provides routing
      services to the mobile node while registered.  The foreign agent
      detunnels and delivers packets to the mobile node that were
      tunneled by the mobile node's home agent. For datagrams sent by a
      mobile node, the foreign agent may serve as a default router for
      registered mobile nodes.

   This document specifies the objects used in managing these entities;
   namely, the Mobile Node, the Home Agent, and the Foreign Agent.













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<span class="h3"><a class="selflink" id="section-3.3" href="#section-3.3">3.3</a>.  MIB Groups</span>

   Objects in this MIB are arranged into groups.  Each group is
   organized as a set of related objects.  The overall structure and the
   relationship between groups and the Mobile IP entities are shown
   below:

        Groups            Mobile Node  Foreign Agent  Home Agent
   mipSystemGroup            X               X             X
   mipSecAssociationGroup    X               X             X
   mipSecViolationGroup      X               X             X
   mnSystemGroup             X
   mnDiscoveryGroup          X
   mnRegistrationGroup       X
   maAdvertisementGroup                      X             X
   faSystemGroup                             X
   faAdvertisementGroup                      X
   faRegistrationGroup                       X
   haRegistrationGroup                                     X
   haRegNodeCountersGroup                                  X































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<span class="h2"><a class="selflink" id="section-4" href="#section-4">4</a>.  Definitions</span>

    MIP-MIB DEFINITIONS ::= BEGIN

    IMPORTS
        Counter32, Gauge32, Integer32, IpAddress, experimental,
        MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE
                                        FROM SNMPv2-SMI
        RowStatus, TruthValue, TimeStamp,
        TEXTUAL-CONVENTION
                                        FROM SNMPv2-TC
        MODULE-COMPLIANCE, OBJECT-GROUP
                                        FROM SNMPv2-CONF;

    mipMIB    MODULE-IDENTITY
        LAST-UPDATED    "9606040000Z"
        ORGANIZATION    "IETF Mobile IP Working Group"
        CONTACT-INFO
                "       David Cong
                Postal: Motorola
                        1301 E. Algonquin Rd.
                        Schaumburg, IL 60196
                Phone:  +1-847-576-1357
                Email:  cong@comm.mot.com"
        DESCRIPTION
                "The MIB Module for the Mobile IP."
        ::= { mib-2 44 }

    mipMIBObjects    OBJECT IDENTIFIER ::= { mipMIB 1 }

    -- Groups under mipMIBObjects

    mipSystem    OBJECT IDENTIFIER ::= { mipMIBObjects 1 }
    mipSecurity    OBJECT IDENTIFIER ::= { mipMIBObjects 2 }
    mipMN    OBJECT IDENTIFIER ::= { mipMIBObjects 3 }
    mipMA    OBJECT IDENTIFIER ::= { mipMIBObjects 4 }
    mipFA    OBJECT IDENTIFIER ::= { mipMIBObjects 5 }
    mipHA    OBJECT IDENTIFIER ::= { mipMIBObjects 6 }

    mnSystem    OBJECT IDENTIFIER ::= { mipMN 1 }
    mnDiscovery    OBJECT IDENTIFIER ::= { mipMN 2 }
    mnRegistration    OBJECT IDENTIFIER ::= { mipMN 3 }

    maAdvertisement    OBJECT IDENTIFIER ::= { mipMA 2 }

    faSystem   OBJECT IDENTIFIER ::= { mipFA 1 }
    faAdvertisement   OBJECT IDENTIFIER ::= { mipFA 2 }
    faRegistration    OBJECT IDENTIFIER ::= { mipFA 3 }



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    haRegistration    OBJECT IDENTIFIER ::= { mipHA 3 }

    -- Textual convention

    RegistrationFlags  ::= TEXTUAL-CONVENTION
        STATUS      current
        DESCRIPTION
                "This data type is used to define the registration
                flags for Mobile IP registration extension:
                   vjCompression
                       -- Request to use VJ compression
                   gre
                       -- Request to use GRE
                   minEnc
                       -- Request to use minimal encapsulation
                   decapsulationByMN
                       -- Decapsulation by mobile node
                   broadcastDatagram
                       -- Request to receive broadcasts
                   simultaneoursBindings
                       -- Request to retain prior binding(s)."
        SYNTAX      BITS {
                         vjCompression(0),
                         gre(1),
                         minEnc(2),
                         decapsulationbyMN(3),
                         broadcastDatagram(4),
                         simultaneousBindings(5)
                    }

    -- mipSystem Group

    mipEntities OBJECT-TYPE
        SYNTAX      BITS {
                         mobileNode(0),
                         foreignAgent(1),
                         homeAgent(2)
                    }
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "This object describes which Mobile IP entities are
                supported by this managed entity. The entity may
                support more than one Mobile IP entities. For example,
                the entity supports both Foreign Agent (FA) and Home
                Agent (HA). Therefore, bit 1 and bit 2 are set to 1
                for this object."
        ::= { mipSystem 1 }



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    mipEnable OBJECT-TYPE
        SYNTAX      INTEGER { enabled(1), disabled(2) }
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION
                "Indicates whether the Mobile IP protocol should be
                enabled for the managed entity. If it is disabled, the
                entity should disable both agent discovery and
                registration functions."
        ::= { mipSystem 2 }

    mipEncapsulationSupported   OBJECT-TYPE
        SYNTAX      BITS {
                         ipInIp(0),
                         gre(1),
                         minEnc(2),
                         other(3)
                    }
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Encapsulation methods supported by the Mobile IP
                entity. The entity may support multiple encapsulation
                methods or none of them:
                    ipInIp(0), -- IP Encapsulation within IP
                    gre(1),    -- Generic Routing Encapsulation,
                               -- refers to <a href="./rfc1701">RFC1701</a>
                    minEnc(2), -- Minimal Encapsulation within IP."
        ::= { mipSystem 3 }

    -- mipSecurity Group

    mipSecAssocTable OBJECT-TYPE
        SYNTAX      SEQUENCE OF MipSecAssocEntry
        MAX-ACCESS      not-accessible
        STATUS      current
        DESCRIPTION
                "A table containing Mobility Security Associations."
        ::= { mipSecurity 1 }

    mipSecAssocEntry OBJECT-TYPE
        SYNTAX      MipSecAssocEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "One particular Mobility Security Association."
        INDEX   { mipSecPeerAddress, mipSecSPI }
        ::= { mipSecAssocTable 1 }



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    MipSecAssocEntry ::=
        SEQUENCE {
            mipSecPeerAddress IpAddress,
            mipSecSPI Unsigned32,
            mipSecAlgorithmType INTEGER,
            mipSecAlgorithmMode INTEGER,
            mipSecKey OCTET STRING,
            mipSecReplayMethod INTEGER
        }

    mipSecPeerAddress  OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "The IP address of the peer entity with which this
                node shares the mobility security association."
        ::= { mipSecAssocEntry 1 }

    mipSecSPI OBJECT-TYPE
        SYNTAX      Unsigned32 (0..4294967295)
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "The SPI is the 4-byte opaque index within the
                Mobility Security Association which selects the
                specific security parameters to be used to
                authenticate the peer, i.e. the rest of the variables
                in this MipSecAssocEntry."
        ::= { mipSecAssocEntry 2 }

    mipSecAlgorithmType OBJECT-TYPE
        SYNTAX      INTEGER {
                            other(1),
                            md5(2)
                    }
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
                "Type of security algorithm."
        ::= { mipSecAssocEntry 3 }

    mipSecAlgorithmMode OBJECT-TYPE
        SYNTAX      INTEGER {
                            other(1),
                            prefixSuffix(2)
                    }
        MAX-ACCESS  read-create



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        STATUS      current
        DESCRIPTION
                "Security mode used by this algorithm."
        ::= { mipSecAssocEntry 4 }

    mipSecKey  OBJECT-TYPE
        SYNTAX      OCTET STRING (SIZE(16))
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
                "The shared secret key for the security
                associations. Reading this object will always return
                zero length value."
        ::= { mipSecAssocEntry 5 }

    mipSecReplayMethod OBJECT-TYPE
        SYNTAX      INTEGER {
                             other(1),
                             timestamps(2),
                             nonces(3)
                    }
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
                "The replay-protection method supported for this SPI
                within this Mobility Security Association."
        ::= { mipSecAssocEntry 6 }

    -- Mobile IP security violation total counter

    mipSecTotalViolations OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
               "Total number of security violations in the entity"
           ::= { mipSecurity 2 }

    -- Mobile IP security violation table

    mipSecViolationTable  OBJECT-TYPE
        SYNTAX      SEQUENCE OF MipSecViolationEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "A table containing information about security
                violations."
        ::= { mipSecurity 3 }



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    mipSecViolationEntry  OBJECT-TYPE
        SYNTAX      MipSecViolationEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "Information about one particular security violation."
        INDEX   { mipSecViolatorAddress }
        ::= { mipSecViolationTable 1 }

    MipSecViolationEntry ::=
        SEQUENCE {
            mipSecViolatorAddress IpAddress,
            mipSecViolationCounter Counter32,
            mipSecRecentViolationSPI Integer32,
            mipSecRecentViolationTime TimeStamp,
            mipSecRecentViolationIDLow Integer32,
            mipSecRecentViolationIDHigh Integer32,
            mipSecRecentViolationReason INTEGER
        }

    mipSecViolatorAddress  OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  accessible-for-notify
        STATUS      current
        DESCRIPTION
                "Violator's IP address. The violator is not necessary
                in the mipSecAssocTable."
        ::= { mipSecViolationEntry 1 }

    mipSecViolationCounter OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of security violations for this peer."
        ::= { mipSecViolationEntry 2 }

    mipSecRecentViolationSPI  OBJECT-TYPE
        SYNTAX      Integer32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "SPI of the most recent security violation for this
                peer. If the security violation is due to an
                identification mismatch, then this is the SPI from the
                Mobile-Home Authentication Extension.  If the security
                violation is due to an invalid authenticator, then
                this is the SPI from the offending authentication



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                extension.  In all other cases, it should be set to
                zero."
        ::= { mipSecViolationEntry 3 }

    mipSecRecentViolationTime OBJECT-TYPE
        SYNTAX      TimeStamp
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Time of the most recent security violation for this
                peer."
        ::= { mipSecViolationEntry 4 }

    mipSecRecentViolationIDLow  OBJECT-TYPE
        SYNTAX      Integer32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
               "Low-order 32 bits of identification used in request or
                reply of the most recent security violation for this
                peer."
        ::= { mipSecViolationEntry 5 }

    mipSecRecentViolationIDHigh  OBJECT-TYPE
        SYNTAX      Integer32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "High-order 32 bits of identification used in request
                or reply of the most recent security violation for
                this peer."
        ::= { mipSecViolationEntry 6 }

    mipSecRecentViolationReason   OBJECT-TYPE
        SYNTAX      INTEGER {
                            noMobilitySecurityAssociation(1),
                            badAuthenticator(2),
                            badIdentifier(3),
                            badSPI(4),
                            missingSecurityExtension(5),
                            other(6)
                    }
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Reason for the most recent security violation for
                this peer."
        ::= { mipSecViolationEntry 7 }



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    -- mipMN Group
    -- mipSystem Group

    mnState OBJECT-TYPE
        SYNTAX      INTEGER {
                            home(1),
                            registered(2),
                            pending(3),
                            isolated(4),
                            unknown(5)
                    }
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Indicates mobile node's state of Mobile IP:
                     home,
                         -- MN is connected to home network.
                     registered,
                         -- MN has registered on foreign network
                     pending,
                         -- MN has sent registration request and is
                            waiting for the reply
                     isolated,
                         -- MN is isolated from network
                     unknown
                         -- MN can not determine its state."
        ::= { mnSystem 1 }

    mnHomeAddress OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "An IP address that is assigned for an extended period
                of time to the mobile node. It remains unchanged
                regardless of the mobile node's current point of
                attachment."
        ::= { mnSystem 2 }

   -- Mobile node's home agent list

    mnHATable OBJECT-TYPE
        SYNTAX      SEQUENCE OF MnHAEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION



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                "A table containing all of the mobile node's potential
                home agents."
        ::= { mnSystem 3 }

    mnHAEntry OBJECT-TYPE
        SYNTAX MnHAEntry
        MAX-ACCESS not-accessible
        STATUS      current
        DESCRIPTION
                "Information for a particular Home Agent."
        INDEX { mnHAAddress }
        ::= { mnHATable 1 }

    MnHAEntry ::= SEQUENCE {
        mnHAAddress IpAddress,
        mnCurrentHA TruthValue,
        mnHAStatus  RowStatus
    }

    mnHAAddress OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "IP address of mobile node's Home Agent."
        ::= { mnHAEntry 1 }

    mnCurrentHA OBJECT-TYPE
        SYNTAX      TruthValue
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Whether this home agent is the current home agent for
                the mobile node. If it is true, the mobile node is
                registered with that home agent."
        ::= { mnHAEntry 2 }

    mnHAStatus  OBJECT-TYPE
        SYNTAX      RowStatus
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
                "The row status for this home agent entry. If the
                status is set to 'createAndGo' or 'active', then the
                mobile node can use mnHAAddress as a valid candidate
                for a home agent. If the status is set to 'destroy',
                then the mobile node should delete this row, and
                deregister from that home agent."



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        ::= { mnHAEntry 3 }

    mnFATable OBJECT-TYPE
        SYNTAX      SEQUENCE OF MnFAEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "A table containing all foreign agents that the mobile
                node knows about and their corresponding COA (care-of
                address). This COA is an address of a foreign agent
                with which the mobile node is registered. The table is
                updated when advertisements are received by the mobile
                node. If an advertisement expires, its entry(s) should
                be deleted from the table. One foreign agent can
                provide more than one COA in its advertisements."
        ::= { mnDiscovery 1 }

    mnFAEntry OBJECT-TYPE
        SYNTAX      MnFAEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "One pair of foreign agent IP address and COA for that
                foreign agent."
        INDEX { mnFAAddress, mnCOA }
        ::= { mnFATable 1 }

    MnFAEntry ::= SEQUENCE {
        mnFAAddress IpAddress,
        mnCOA IpAddress
    }

    mnFAAddress OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Foreign agent's IP address."
        ::= { mnFAEntry 1 }

    mnCOA   OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "A care-of address being offered by this foreign agent
                or a co-located care-of address which the mobile node
                has associated with one of its own network



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                interfaces."
        ::= { mnFAEntry 2 }

   -- Mobile node could store multiple agent advertisements, however,
   -- only the most recently received agent advertisement information
   -- is required to be made available to the manager station.

    mnRecentAdvReceived OBJECT IDENTIFIER ::= { mnDiscovery 2 }

    mnAdvSourceAddress OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The source IP address of the most recently received
                Agent Advertisement. This address could be the address
                of a home agent or a foreign agent."
        ::= { mnRecentAdvReceived 1 }

    mnAdvSequence OBJECT-TYPE
        SYNTAX      INTEGER (0..65535)
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The sequence number of the most recently received
                advertisement. The sequence number ranges from 0 to
                0xffff. After the sequence number attains the value
                0xffff, it will roll over to 256."
        ::= { mnRecentAdvReceived 2 }

    mnAdvFlags OBJECT-TYPE
        SYNTAX      BITS {
                         vjCompression(0),
                         gre(1),
                         minEnc(2),
                         foreignAgent(3),
                         homeAgent(4),
                         busy(5),
                         regRequired(6)
                    }
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The flags are contained in the 7th byte in the
                extension of the most recently received mobility agent
                advertisement:
                    vjCompression
                        -- Agent supports Van Jacobson compression



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                    gre
                        -- Agent offers Generice Routing Encapsulation
                    minEnc,
                        -- Agent offers Minimal Encapsulation
                    foreignAgent,
                        -- Agent is a Foreign Agent
                    homeAgent,
                        -- Agent is a Home Agent
                    busy,
                        -- Foreign Agent is busy
                    regRequired,
                        -- FA registration is required."
        ::= { mnRecentAdvReceived 3 }

    mnAdvMaxRegLifetime OBJECT-TYPE
        SYNTAX      INTEGER (0..65535)
        UNITS       "seconds"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The longest lifetime in seconds that the agent is
                willing to accept in any registration request."
        ::= { mnRecentAdvReceived 4 }

    mnAdvMaxAdvLifetime OBJECT-TYPE
        SYNTAX      INTEGER (0..65535)
        UNITS       "seconds"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The maximum length of time that the Advertisement is
                considered valid in the absence of further
                Advertisements."
        REFERENCE
                "AdvertisementLifeTime in <a href="./rfc1256">RFC1256</a>."
        ::= { mnRecentAdvReceived 5 }

    mnAdvTimeReceived OBJECT-TYPE
        SYNTAX      TimeStamp
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The time at which the most recently received
                advertisement was received."
        ::= { mnRecentAdvReceived 6 }

   -- Mobile Node Discovery Group Counter




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    mnSolicitationsSent OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Solicitation sent by the mobile
                node."
        ::= { mnDiscovery 3 }

    mnAdvertisementsReceived OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of advertisements received by the mobile
                node."
        ::= { mnDiscovery 4 }

    mnAdvsDroppedInvalidExtension OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of advertisements dropped by the mobile
                node due to both poorly formed extensions and
                unrecognized extensions with extension number in the
                range 0-127."
        ::= { mnDiscovery 5 }

    mnAdvsIgnoredUnknownExtension OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of unrecognized extensions in the range
                128-255 that were ignored by the mobile node."
        ::= { mnDiscovery 6 }

    mnMoveFromHAToFA OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Number of times that the mobile node has decided to
                move from its home network to a foreign network."
        ::= { mnDiscovery 7 }

    mnMoveFromFAToFA OBJECT-TYPE



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        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Number of times that the mobile node has decided to
                move from one foreign network to another foreign
                network."
        ::= { mnDiscovery 8 }

    mnMoveFromFAToHA OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Number of times that the mobile node has decided to
                move from a foreign network to its home network."
        ::= { mnDiscovery 9 }

    mnGratuitousARPsSend OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Gratuitous ARPs sent by mobile node
                in order to clear out any stale ARP entries in the ARP
                caches of nodes on the home network."
        ::= { mnDiscovery 10 }

    mnAgentRebootsDectected OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of agent reboots detected by the mobile
                node through sequence number of the advertisement."
        ::= { mnDiscovery 11 }

    -- Mobile Node Registration Group

    -- Registration table of mobile node

    mnRegistrationTable OBJECT-TYPE
        SYNTAX      SEQUENCE OF MnRegistrationEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "A table containing information about the mobile
                node's attempted registration(s).  The mobile node



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                updates this table based upon Registration Requests
                sent and Registration Replies received in response to
                these requests.  Certain variables within this table
                are also updated if when Registration Requests are
                retransmitted."
        ::= { mnRegistration 1 }

    mnRegistrationEntry OBJECT-TYPE
        SYNTAX      MnRegistrationEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "Information about one registration attempt."
        INDEX { mnRegAgentAddress, mnRegCOA}
        ::= { mnRegistrationTable 1 }

    MnRegistrationEntry ::= SEQUENCE {
        mnRegAgentAddress IpAddress,
        mnRegCOA IpAddress,
        mnRegFlags RegistrationFlags,
        mnRegIDLow Integer32,
        mnRegIDHigh Integer32,
        mnRegTimeRequested Integer32,
        mnRegTimeRemaining  Gauge32,
        mnRegTimeSent    TimeStamp,
        mnRegIsAccepted  TruthValue,
        mnCOAIsLocal     TruthValue
        }

    mnRegAgentAddress OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                 "IP address of the agent as used in the destination
                 IP address of the Registration Request.  The agent
                 may be a home agent or a foreign agent."
        ::= { mnRegistrationEntry 1 }

    mnRegCOA OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Care-of address for the registration."
        ::= { mnRegistrationEntry 2 }

    mnRegFlags OBJECT-TYPE



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        SYNTAX      RegistrationFlags
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Registration flags sent by the mobile node. It is the
                second byte in the Mobile IP Registratation Request
                message."
        ::= { mnRegistrationEntry 3 }

    mnRegIDLow OBJECT-TYPE
        SYNTAX      Integer32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Low-order 32 bits of the Identification used in that
                registration by the mobile node."
        ::= { mnRegistrationEntry 4 }

    mnRegIDHigh OBJECT-TYPE
        SYNTAX      Integer32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "High-order 32 bits of the Identification used in that
                registration by the mobile node."
        ::= { mnRegistrationEntry 5 }

    mnRegTimeRequested OBJECT-TYPE
        SYNTAX      Integer32
        UNITS       "seconds"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "If the registration is pending, then this is the
                lifetime requested by the mobile node (in seconds).
                If the registration has been accepted, then this is
                the lifetime actually granted by the home agent in the
                reply."
        ::= { mnRegistrationEntry 6 }

    mnRegTimeRemaining OBJECT-TYPE
        SYNTAX      Gauge32
        UNITS       "seconds"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The number of seconds remaining until this
                registration expires.  It has the same initial value



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                as mnRegTimeRequested and is only valid if
                mnRegIsAccepted is TRUE."
        ::= { mnRegistrationEntry 7 }

    mnRegTimeSent OBJECT-TYPE
        SYNTAX      TimeStamp
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The time when the last (re-)transmission occured."
        ::= { mnRegistrationEntry 8 }

    mnRegIsAccepted OBJECT-TYPE
        SYNTAX      TruthValue
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "true(1) if the mobile node has received a
                Registration Reply indicating that service has been
                accepted; false(2) otherwise.  false(2) implies that
                the registration is still pending."
        ::= { mnRegistrationEntry 9 }

    mnCOAIsLocal OBJECT-TYPE
        SYNTAX      TruthValue
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Whether the COA is local to (dynamically acquired by)
                the mobile node or not.  If it is false(2), the COA is
                an address of the foreign agent."
        ::= { mnRegistrationEntry 10 }

    -- Mobile Node Registration Group Counters

    mnRegRequestsSent OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of registration requests sent by the
                mobile node. This does not include deregistrations
                (those with Lifetime equal to zero)."
        ::= { mnRegistration 2 }

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



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        STATUS      current
        DESCRIPTION
                "Total number of deregistration requests sent by the
                mobile node (those with Lifetime equal to zero)."
        ::= { mnRegistration 3 }

    mnRegRepliesRecieved OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of registration replies received by the
                mobile node in which the Lifetime is greater than
                zero."
        ::= { mnRegistration 4 }

    mnDeRegRepliesRecieved OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of (de)registration replies received by
                the mobile node in which the Lifetime is equal to
                zero."
        ::= { mnRegistration 5 }

    mnRepliesInvalidHomeAddress OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of replies with invalid home address for
                the mobile node."
        ::= { mnRegistration 6 }

    mnRepliesUnknownHA OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of replies with unknown home agents
                (not in home agent table)."
        ::= { mnRegistration 7 }

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



<span class="grey">Cong, Hamlen &amp; Perkins      Standards Track                    [Page 22]</span></pre>
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        DESCRIPTION
                "Total number of replies with unknown foreign agents if
                replies relayed through foreign agent."
        ::= { mnRegistration 8 }

    mnRepliesInvalidID OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of replies with invalid Identification
                fields."
        ::= { mnRegistration 9 }

    mnRepliesDroppedInvalidExtension OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Replies dropped by the
                mobile node due to both poorly formed extensions and
                unrecognized extensions with extension number in the
                range 0-127."
        ::= { mnRegistration 10 }

    mnRepliesIgnoredUnknownExtension OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Replies that contained
                one or more unrecognized extensions in the range
                128-255 that were ignored by the mobile node."
        ::= { mnRegistration 11 }

    mnRepliesHAAuthenticationFailure OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of replies without a valid Home Agent to
                Mobile Node authenticator."
        ::= { mnRegistration 12 }

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



<span class="grey">Cong, Hamlen &amp; Perkins      Standards Track                    [Page 23]</span></pre>
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<span class="grey"><a href="./rfc2006">RFC 2006</a>          Mobile IP MIB Definition using SMIv2      October 1996</span>


        DESCRIPTION
                "Total number of replies without a valid Foreign Agent
                to Mobile Node authenticator."
        ::= { mnRegistration 13 }

    mnRegRequestsAccepted OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of registration requests accepted by the
                mobile node's home agent (Code 0 and Code 1)."
        ::= { mnRegistration 14 }

    mnRegRequestsDeniedByHA OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of registration requests denied by
                mobile node's home agent (Sum of Code 128 through
                Code 191)."
        ::= { mnRegistration 15 }

    mnRegRequestsDeniedByFA OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of registration requests denied by the
                foreign agent (Sum of Codes 64 through Code 127)."
        ::= { mnRegistration 16 }

    mnRegRequestsDeniedByHADueToID OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Request denied by home
                agent due to identification mismatch."
        ::= { mnRegistration 17 }

    mnRegRequestsWithDirectedBroadcast OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests sent by mobile



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                node with a directed broadcast address in the home
                agent field."
        ::= { mnRegistration 18 }

    -- MA Advertisement Group

    -- Mobility agent advertisement configuration table

    maAdvConfigTable OBJECT-TYPE
        SYNTAX      SEQUENCE OF MaAdvConfigEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "A table containing configurable advertisement
                parameters for all advertisement interfaces in
                the mobility agent."
        ::= { maAdvertisement 1 }

    maAdvConfigEntry OBJECT-TYPE
        SYNTAX      MaAdvConfigEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "Advertisement parameters for one advertisement
                interface."
        INDEX   { maInterfaceAddress }
        ::= { maAdvConfigTable 1 }

    MaAdvConfigEntry    ::= SEQUENCE {
          maInterfaceAddress IpAddress,
          maAdvMaxRegLifetime Integer32,
          maAdvPrefixLengthInclusion TruthValue,
          maAdvAddress IpAddress,
          maAdvMaxInterval Integer32,
          maAdvMinInterval Integer32,
          maAdvMaxAdvLifetime Integer32,
          maAdvResponseSolicitationOnly TruthValue,
          maAdvStatus RowStatus
        }

    maInterfaceAddress OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "IP address for advertisement interface."
        ::= { maAdvConfigEntry 1 }




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    maAdvMaxRegLifetime OBJECT-TYPE
        SYNTAX      Integer32 (0..65535)
        UNITS       "seconds"
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
                "The longest lifetime in seconds that mobility agent
                is willing to accept in any Registration Request."
        ::= { maAdvConfigEntry 2 }

    maAdvPrefixLengthInclusion OBJECT-TYPE
        SYNTAX      TruthValue
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
                "Whether the advertisement should include the Prefix-
                Lengths Extension. If it is true, all advertisements
                sent over this interface should include the
                Prefix-Lengths Extension."
        ::= { maAdvConfigEntry 3 }

    maAdvAddress OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
                "The IP destination address to be used for
                advertisements sent from the interface. The only
                permissible values are the all-systems multicast
                address (224.0.0.1) or the limited-broadcast address
                (255.255.255.255)."
        REFERENCE
                "AdvertisementAddress in <a href="./rfc1256">RFC1256</a>."
        ::= { maAdvConfigEntry 4 }

    maAdvMaxInterval OBJECT-TYPE
        SYNTAX      Integer32 (4..1800)
        UNITS       "seconds"
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
                "The maximum time in seconds between successive
                transmissions of Agent Advertisements from this
                interface."
        REFERENCE
                "MaxAdvertisementInterval in <a href="./rfc1256">RFC1256</a>."
        ::= { maAdvConfigEntry 5 }




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    maAdvMinInterval OBJECT-TYPE
        SYNTAX      Integer32 (3..1800)
        UNITS       "seconds"
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
                "The minimum time in seconds between successive
                transmissions of Agent Advertisements from this
                interface."
        REFERENCE
                "MinAdvertisementInterval in <a href="./rfc1256">RFC1256</a>."
        ::= { maAdvConfigEntry 6 }

    maAdvMaxAdvLifetime OBJECT-TYPE
        SYNTAX      Integer32 (4..9000)
        UNITS       "seconds"
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
                "The time (in seconds) to be placed in the Lifetime
                field of the <a href="./rfc1256">RFC 1256</a>-portion of the Agent
                Advertisements sent over this interface."
        REFERENCE
                "AdvertisementLifetime in <a href="./rfc1256">RFC1256</a>."
        ::= { maAdvConfigEntry 7 }

    maAdvResponseSolicitationOnly OBJECT-TYPE
        SYNTAX      TruthValue
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
                "The flag indicates whether the advertisement from
                that interface should be sent only in response to an
                Agent Solicitation message."
        DEFVAL      { false }
        ::= { maAdvConfigEntry 8 }

    maAdvStatus OBJECT-TYPE
        SYNTAX      RowStatus
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
                "The row status for the agent advertisement table. If
                this column status is 'active', the manager should not
                change any column in the row."
        ::= { maAdvConfigEntry 9 }

   -- MA Advertisement Group Counters



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<span class="grey"><a href="./rfc2006">RFC 2006</a>          Mobile IP MIB Definition using SMIv2      October 1996</span>


    maAdvertisementsSent OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of advertisements sent by the mobility
                agent."
        ::= { maAdvertisement 2 }

    maAdvsSentForSolicitation OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of advertisements sent by mobility agent
                in response to mobile node solicitations."
        ::= { maAdvertisement 3 }

    maSolicitationsReceived OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of solicitations received by the
                mobility agent."
        ::= { maAdvertisement 4 }

    -- Foreign Agent Group

    -- Foreign Agent System Group

    faCOATable OBJECT-TYPE
        SYNTAX      SEQUENCE OF FaCOAEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "A table containing all of the care-of addresses
                (COAs) supported by the foreign agent. New entries can
                be added to the table. The order of entries in the
                faCOATAble is also the order in which the COAs are
                listed in the Agent Advertisement."
           ::= { faSystem 1 }

    faCOAEntry OBJECT-TYPE
        SYNTAX      FaCOAEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION



<span class="grey">Cong, Hamlen &amp; Perkins      Standards Track                    [Page 28]</span></pre>
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                "Entry of COA"
        INDEX { faSupportedCOA }
        ::= { faCOATable 1 }

    FaCOAEntry     ::=
        SEQUENCE {
                 faSupportedCOA IpAddress,
                 faCOAStatus    RowStatus
        }

    faSupportedCOA OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "Care-of-address supported by this foreign agent."
        ::= { faCOAEntry 1 }

    faCOAStatus  OBJECT-TYPE
        SYNTAX      RowStatus
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
                "The row status for COA entry."
        ::= { faCOAEntry 2 }

    -- Foreign Agent Advertisement Group
    -- FA needs to implement MA Advertisement Group plus that group

    faIsBusy OBJECT-TYPE
        SYNTAX      TruthValue
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Whether or not the foreign agent is too busy to
                accept additional registrations. If true(1), the agent
                is busy and any Agent advertisements sent from this
                agent should have the 'B' bit set to 1."
        ::= { faAdvertisement 1 }

    faRegistrationRequired OBJECT-TYPE
        SYNTAX      TruthValue
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION
                "Whether or not this foreign agent requires
                registration even from those mobile nodes that have
                acquired their own, colocated care-of address.  If



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                true(1), registration is required and any Agent
                Advertisements sent from this agent should have the
                'R' bit set to 1."
        ::= { faAdvertisement 2 }

    -- Foreign Agent Registration Group

    -- Foreign Agent Visitors List

    faVisitorTable OBJECT-TYPE
        SYNTAX      SEQUENCE OF FaVisitorEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "A table containing the foreign agent's visitor list.
                The foreign agent updates this table in response to
                registration events from mobile nodes."
        ::= { faRegistration 1 }

    faVisitorEntry OBJECT-TYPE
        SYNTAX      FaVisitorEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "Information for one visitor."
        INDEX   { faVisitorIPAddress }
        ::= { faVisitorTable 1 }

    FaVisitorEntry     ::= SEQUENCE {
        faVisitorIPAddress IpAddress,
        faVisitorHomeAddress IpAddress,
        faVisitorHomeAgentAddress IpAddress,
        faVisitorTimeGranted Integer32,
        faVisitorTimeRemaining Gauge32,
        faVisitorRegFlags RegistrationFlags,
        faVisitorRegIDLow Integer32,
        faVisitorRegIDHigh Integer32,
        faVisitorRegIsAccepted TruthValue
        }

    faVisitorIPAddress OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Source IP address of visitor's Registration Request."
        ::= { faVisitorEntry 1 }




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    faVisitorHomeAddress OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Home (IP) address of visiting mobile node."
        ::= { faVisitorEntry 2 }

    faVisitorHomeAgentAddress OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Home agent IP address for that visiting mobile node."
        ::= { faVisitorEntry 3 }

    faVisitorTimeGranted OBJECT-TYPE
        SYNTAX      Integer32
        UNITS       "seconds"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The lifetime in seconds granted to the mobile node
                for this registration.  Only valid if
                faVisitorRegIsAccepted is true(1)."
        ::= { faVisitorEntry 4 }

    faVisitorTimeRemaining OBJECT-TYPE
        SYNTAX      Gauge32
        UNITS       "seconds"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The number of seconds remaining until the
                registration is expired. It has the same initial value
                as faVisitorTimeGranted, and is counted down by the
                foreign agent."
        ::= { faVisitorEntry 5 }

    faVisitorRegFlags OBJECT-TYPE
        SYNTAX      RegistrationFlags
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Registration flags sent by mobile node."
        ::= { faVisitorEntry 6 }

    faVisitorRegIDLow OBJECT-TYPE



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        SYNTAX      Integer32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Low 32 bits of Identification used in that
                registration by the mobile node."
        ::= { faVisitorEntry 7 }

    faVisitorRegIDHigh OBJECT-TYPE
        SYNTAX      Integer32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "High 32 bits of Identification used in that
                registration by the mobile node."
        ::= { faVisitorEntry 8 }

    faVisitorRegIsAccepted OBJECT-TYPE
        SYNTAX      TruthValue
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Whether the registration has been accepted or not. If
                it is false(2), this registration is still pending for
                reply."
        ::= { faVisitorEntry 9 }

   -- Foreign Agent Registration Group Counters

    faRegRequestsReceived OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of valid Registration Requests
                received."
        ::= { faRegistration 2 }

    faRegRequestsRelayed OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests relayed to home
                agent by foreign agent."
        ::= { faRegistration 3 }

    faReasonUnspecified OBJECT-TYPE



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        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests denied by
                foreign agent -- reason unspecified (Code 64)."
        ::= { faRegistration 4 }

    faAdmProhibited OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests denied by
                foreign agent -- administratively prohibited (Code
                65)."
        ::= { faRegistration 5 }

    faInsufficientResource OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests denied by
                foreign agent -- insufficient resources (Code 66)."
        ::= { faRegistration 6 }

    faMNAuthenticationFailure OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests denied by
                foreign agent -- mobile node failed authentication
                (Code 67)."
        ::= { faRegistration 7 }

    faRegLifetimeTooLong OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests denied by
                foreign agent -- requested lifetime too long (Code
                69)."
        ::= { faRegistration 8 }

    faPoorlyFormedRequests OBJECT-TYPE



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        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests denied by
                foreign agent -- poorly formed request (Code 70)."
        ::= { faRegistration 9 }

    faEncapsulationUnavailable OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests denied by
                foreign agent -- requested encapsulation unavailable
                (Code 72)."
        ::= { faRegistration 10 }

    faVJCompressionUnavailable OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests denied by
                foreign agent -- requested Van Jacobson header
                compression unavailable (Code 73)."
        ::= { faRegistration 11 }

    faHAUnreachable OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests denied by
                foreign agent -- home agent unreachable (Codes
                80-95)."
        ::= { faRegistration 12 }

    faRegRepliesRecieved OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of well-formed Registration Replies
                received by foreign agent."
        ::= { faRegistration 13 }

    faRegRepliesRelayed OBJECT-TYPE



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        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of valid Registration Replies relayed to
                the mobile node by foreign agent."
        ::= { faRegistration 14 }

    faHAAuthenticationFailure OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Replies denied by
                foreign agent -- home agent failed authentication
                (Code 68)."
        ::= { faRegistration 15 }

    faPoorlyFormedReplies OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Replies denied by
                foreign agent -- poorly formed reply (Code 71)."
        ::= { faRegistration 16 }

    -- Home Agent Group

    -- Home Agent Registration Group

    -- Home agent mobility binding list

    haMobilityBindingTable  OBJECT-TYPE
        SYNTAX      SEQUENCE OF HaMobilityBindingEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "A table containing the home agent's mobility binding
                list.  The home agent updates this table in response
                to registration events from mobile nodes."
        ::= { haRegistration 1 }

    haMobilityBindingEntry OBJECT-TYPE
        SYNTAX      HaMobilityBindingEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION



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                "An entry on the mobility binding list."
        INDEX   { haMobilityBindingMN, haMobilityBindingCOA }
        ::= { haMobilityBindingTable 1 }

    HaMobilityBindingEntry ::= SEQUENCE {
         haMobilityBindingMN    IpAddress,
         haMobilityBindingCOA   IpAddress,
         haMobilityBindingSourceAddress    IpAddress,
         haMobilityBindingRegFlags    RegistrationFlags,
         haMobilityBindingRegIDLow Integer32,
         haMobilityBindingRegIDHigh Integer32,
         haMobilityBindingTimeGranted Integer32,
         haMobilityBindingTimeRemaining Gauge32
         }

    haMobilityBindingMN    OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Mobile node's home (IP) address."
        ::= { haMobilityBindingEntry 1 }

    haMobilityBindingCOA   OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Mobile node's care-of-address. One mobile node can
                have multiple bindings with different
                care-of-addresses."
        ::= { haMobilityBindingEntry 2 }

    haMobilityBindingSourceAddress    OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "IP source address of the Registration Request as
                received by the home agent.  Will be either a mobile
                node's co-located care-of address or an address of the
                foreign agent."
        ::= { haMobilityBindingEntry 3 }

    haMobilityBindingRegFlags OBJECT-TYPE
        SYNTAX      RegistrationFlags
        MAX-ACCESS  read-only
        STATUS      current



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        DESCRIPTION
                "Registration flags sent by mobile node."
        ::= { haMobilityBindingEntry 4 }

    haMobilityBindingRegIDLow OBJECT-TYPE
        SYNTAX      Integer32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Low 32 bits of Identification used in that binding by
                the mobile node."
        ::= { haMobilityBindingEntry 5 }

    haMobilityBindingRegIDHigh OBJECT-TYPE
        SYNTAX      Integer32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
               "High 32 bits of Identification used in that binding by
                the mobile node."
        ::= { haMobilityBindingEntry 6 }

    haMobilityBindingTimeGranted OBJECT-TYPE
        SYNTAX      Integer32
        UNITS       "seconds"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The lifetime in seconds granted to the mobile node
                for this registration."
        ::= { haMobilityBindingEntry 7 }

    haMobilityBindingTimeRemaining OBJECT-TYPE
        SYNTAX      Gauge32
        UNITS       "seconds"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The number of seconds remaining until the
                registration is expired. It has the same initial value
                as haMobilityBindingTimeGranted, and is counted down
                by the home agent."
        ::= { haMobilityBindingEntry 8 }

   -- Home Agent Registration Group Counters

   -- Home agent registration Counters per node




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    haCounterTable OBJECT-TYPE
        SYNTAX      SEQUENCE OF HaCounterEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "A table containing registration statistics for all
                mobile nodes authorized to use this home agent."
        ::= { haRegistration 2 }

    haCounterEntry  OBJECT-TYPE
        SYNTAX      HaCounterEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "Registration statistics for one mobile node."
        INDEX   { haMobilityBindingMN }
        ::= { haCounterTable 1 }

    HaCounterEntry      ::= SEQUENCE {
        haServiceRequestsAccepted Counter32,
        haServiceRequestsDenied Counter32,
        haOverallServiceTime Gauge32,
        haRecentServiceAcceptedTime TimeStamp,
        haRecentServiceDeniedTime TimeStamp,
        haRecentServiceDeniedCode INTEGER
        }

    haServiceRequestsAccepted OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of service requests for the mobile node
                accepted by the home agent (Code 0 + Code 1)."
        ::= { haCounterEntry 2 }

    haServiceRequestsDenied   OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of service requests for the mobile node
                denied by the home agent (sum of all registrations
                denied with Code 128 through Code 159)."
        ::= { haCounterEntry 3 }

    haOverallServiceTime   OBJECT-TYPE
        SYNTAX      Gauge32



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        UNITS       "seconds"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Overall service time (in seconds) that has
                accumulated for the mobile node since the home agent
                last rebooted."
        ::= { haCounterEntry 4 }

    haRecentServiceAcceptedTime  OBJECT-TYPE
        SYNTAX      TimeStamp
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The time at which the most recent Registration
                Request was accepted by the home agent for this mobile
                node."
        ::= { haCounterEntry 5 }

    haRecentServiceDeniedTime  OBJECT-TYPE
        SYNTAX      TimeStamp
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The time at which the most recent Registration
                Request was denied by the home agent for this mobile
                node."
        ::= { haCounterEntry 6 }

    haRecentServiceDeniedCode  OBJECT-TYPE
        SYNTAX      INTEGER {
                            reasonUnspecified(128),
                            admProhibited(129),
                            insufficientResource(130),
                            mnAuthenticationFailure(131),
                            faAuthenticationFailure(132),
                            idMismatch(133),
                            poorlyFormedRequest(134),
                            tooManyBindings(135),
                            unknownHA(136)
                    }
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The Code indicating the reason why the most recent
                Registration Request for this mobile node was rejected
                by the home agent."
        ::= { haCounterEntry 7 }



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   -- Home agent registration Counters for all mobile nodes.

    haRegistrationAccepted   OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests accepted by
                home agent (Code 0)."
        ::= { haRegistration 3 }

    haMultiBindingUnsupported OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests accepted by
                home agent -- simultaneous mobility bindings
                unsupported (Code 1)."
        ::= { haRegistration 4 }

    haReasonUnspecified   OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests denied by home
                agent -- reason unspecified (Code 128)."
        ::= { haRegistration 5 }

    haAdmProhibited   OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests denied by home
                agent -- administratively prohibited (Code 129)."
        ::= { haRegistration 6 }

    haInsufficientResource  OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests denied by home
                agent -- insufficient resources (Code 130)."
        ::= { haRegistration 7 }




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    haMNAuthenticationFailure OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests denied by home
                agent -- mobile node failed authentication (Code
                131)."
        ::= { haRegistration 8 }

    haFAAuthenticationFailure OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests denied by home
                agent -- foreign agent failed authentication (Code
                132)."
        ::= { haRegistration 9 }

    haIDMismatch OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests denied by home
                agent -- Identification mismatch (Code 133)."
        ::= { haRegistration 10 }

    haPoorlyFormedRequest OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests denied by home
                agent -- poorly formed request (Code 134)."
        ::= { haRegistration 11 }

    haTooManyBindings    OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests denied by home
                agent -- too many simultaneous mobility bindings (Code
                135)."
        ::= { haRegistration 12 }




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    haUnknownHA   OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests denied by home
                agent -- unknown home agent address (Code 136)."
        ::= { haRegistration 13 }

    haGratuitiousARPsSent OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of gratuition ARPs sent by the home
                agent on behalf of mobile nodes."
        ::= { haRegistration 14 }

    haProxyARPsSent   OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of proxy ARPs sent by the home agent on
                behalf of mobile nodes."
        ::= { haRegistration 15 }

    haRegRequestsReceived OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests received by
                home agent."
        ::= { haRegistration 16 }

    haDeRegRequestsReceived OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Requests received by the
                home agent with a Lifetime of zero (requests to
                deregister)."
        ::= { haRegistration 17 }

    haRegRepliesSent  OBJECT-TYPE
        SYNTAX      Counter32



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        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Replies sent by the home
                agent."
        ::= { haRegistration 18 }

    haDeRegRepliesSent OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "Total number of Registration Replies sent by the home
                agent in response to requests to deregister."
        ::= { haRegistration 19 }

    mipMIBNotificationPrefix    OBJECT IDENTIFIER ::= { mipMIB 2 }

    mipMIBNotifications  OBJECT IDENTIFIER ::=
                         { mipMIBNotificationPrefix 0 }

    mipAuthFailure NOTIFICATION-TYPE
        OBJECTS   {    mipSecViolatorAddress,
                       mipSecRecentViolationSPI,
                       mipSecRecentViolationIDLow,
                       mipSecRecentViolationIDHigh,
                       mipSecRecentViolationReason
                  }

        STATUS    current
        DESCRIPTION
                "The mipAuthFailure indicates that the Mobile IP
                entity has an authentication failure when it validates
                the mobile Registration Request or Reply.
                Implementation of this trap is optional."
        ::= { mipMIBNotifications 1 }


    mipMIBConformance OBJECT IDENTIFIER ::= { mipMIB 3 }

    mipGroups     OBJECT IDENTIFIER ::= { mipMIBConformance 1 }
    mipCompliances    OBJECT IDENTIFIER ::= { mipMIBConformance 2 }

    -- compliance statements

    mipCompliance    MODULE-COMPLIANCE
        STATUS    current
        DESCRIPTION



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                "The compliance statement for SNMPv2 entities which
                implement the Mobile IP MIB."
        MODULE
            MANDATORY-GROUPS { mipSystemGroup }

            GROUP    mipSecAssociationGroup
            DESCRIPTION
                "This group is mandatory for Mobile IP entities (MN,
                FA, and HA) which support security associations.
                Mobile Nodes and Home Agents must implement this
                group. Foreign Agents must implement this group if
                they maintain any security associations."

            GROUP    mipSecViolationGroup
            DESCRIPTION
                "This group is mandatory for Mobile IP entities (MN,
                FA, and HA) that can log security violations."

            GROUP     mnSystemGroup
            DESCRIPTION
                "This group is mandatory for mobile node."

            GROUP     mnDiscoveryGroup
            DESCRIPTION
                "This group is mandatory for mobile nodes which
                implement the Agent Discovery function."

            GROUP     mnRegistrationGroup
            DESCRIPTION
                "This group is mandatory for mobile nodes."

            GROUP    maAdvertisementGroup
            DESCRIPTION
                "This group is mandatory for the mobility agents (HA
                and FA) since they must implement Agent
                Advertisement."

            GROUP     faSystemGroup
            DESCRIPTION
                "This group is mandatory for foreign agents."

            GROUP     faAdvertisementGroup
            DESCRIPTION
                "This group is mandatory for foreign agents."

            GROUP     faRegistrationGroup
            DESCRIPTION
                "This group is mandatory for foreign agents."



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            GROUP    haRegistrationGroup
            DESCRIPTION
                "This group is mandatory for home agents."

            GROUP    haRegNodeCountersGroup
            DESCRIPTION
                "This group is mandatory for home agents which log
                registration counters for each individual mobile
                node."

            GROUP    mipSecNotificationsGroup
            DESCRIPTION
                "This group is mandatory for Mobile IP entities (MN,
                FA, and HA) that can report the security violations."

       ::= { mipCompliances 1 }

    -- Units of conformance

    mipSystemGroup     OBJECT-GROUP
        OBJECTS    { mipEntities, mipEnable, mipEncapsulationSupported }
        STATUS     current
        DESCRIPTION
                "A collection of objects providing the basic Mobile IP
                entity's management information."
        ::= { mipGroups 1 }

    mipSecAssociationGroup OBJECT-GROUP
        OBJECTS   { mipSecAlgorithmType, mipSecAlgorithmMode,
                    mipSecKey, mipSecReplayMethod }
        STATUS    current
        DESCRIPTION
                "A collection of objects providing the management
                information for security associations of Mobile IP
                entities."
        ::= { mipGroups 2 }

    mipSecViolationGroup     OBJECT-GROUP
        OBJECTS   { mipSecTotalViolations,
                    mipSecViolationCounter, mipSecRecentViolationSPI,
                    mipSecRecentViolationTime,
                    mipSecRecentViolationIDLow,
                    mipSecRecentViolationIDHigh,
                    mipSecRecentViolationReason }
        STATUS    current
        DESCRIPTION
                "A collection of objects providing the management



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                information for security violation logging of Mobile
                IP entities."
        ::= { mipGroups 3 }

    mnSystemGroup    OBJECT-GROUP
        OBJECTS   { mnState, mnCurrentHA, mnHomeAddress,
                    mnHAStatus }
        STATUS    current
        DESCRIPTION
                "A collection of objects providing the basic
                management information for mobile nodes."
        ::= { mipGroups 4 }

    mnDiscoveryGroup    OBJECT-GROUP
        OBJECTS   { mnFAAddress, mnCOA, mnAdvSourceAddress,
                    mnAdvSequence, mnAdvFlags, mnAdvMaxRegLifetime,
                    mnAdvMaxAdvLifetime, mnAdvTimeReceived,
                    mnSolicitationsSent, mnAdvertisementsReceived,
                    mnAdvsDroppedInvalidExtension,
                    mnAdvsIgnoredUnknownExtension, mnMoveFromHAToFA,
                    mnMoveFromFAToFA, mnMoveFromFAToHA,
                    mnGratuitousARPsSend, mnAgentRebootsDectected }
        STATUS    current
        DESCRIPTION
                "A collection of objects providing management
                information for the Agent Discovery function within a
                mobile node."
        ::= { mipGroups 5 }

    mnRegistrationGroup    OBJECT-GROUP
        OBJECTS   { mnRegAgentAddress, mnRegCOA, mnRegFlags, mnRegIDLow,
                    mnRegIDHigh, mnRegTimeRequested, mnRegTimeRemaining,
                    mnRegTimeSent, mnRegIsAccepted, mnCOAIsLocal,
                    mnRegRequestsSent, mnRegRepliesRecieved,
                    mnDeRegRequestsSent, mnDeRegRepliesRecieved,
                    mnRepliesInvalidHomeAddress, mnRepliesUnknownHA,
                    mnRepliesUnknownFA, mnRepliesInvalidID,
                    mnRepliesDroppedInvalidExtension,
                    mnRepliesIgnoredUnknownExtension,
                    mnRepliesHAAuthenticationFailure,
                    mnRepliesFAAuthenticationFailure,
                    mnRegRequestsAccepted, mnRegRequestsDeniedByHA,
                    mnRegRequestsDeniedByFA,
                    mnRegRequestsDeniedByHADueToID,
                    mnRegRequestsWithDirectedBroadcast }
        STATUS    current
        DESCRIPTION
                "A collection of objects providing management



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                information for the registration function within a
                mobile node."
        ::= { mipGroups 6 }

    maAdvertisementGroup    OBJECT-GROUP
        OBJECTS   { maAdvMaxRegLifetime,
                    maAdvPrefixLengthInclusion, maAdvAddress,
                    maAdvMaxInterval, maAdvMinInterval,
                    maAdvMaxAdvLifetime,
                    maAdvResponseSolicitationOnly, maAdvStatus,
                    maAdvertisementsSent, maAdvsSentForSolicitation,
                    maSolicitationsReceived }
        STATUS    current
        DESCRIPTION
                "A collection of objects providing management
                information for the Agent Advertisement function
                within mobility agents."
        ::= { mipGroups 7 }

    faSystemGroup       OBJECT-GROUP
        OBJECTS   { faCOAStatus}
        STATUS      current
        DESCRIPTION
                "A collection of objects providing the basic
                management information for foreign agents."
        ::= { mipGroups 8 }

    faAdvertisementGroup OBJECT-GROUP
        OBJECTS   { faIsBusy, faRegistrationRequired }
        STATUS      current
        DESCRIPTION
                "A collection of objects providing supplemental
                management information for the Agent Advertisement
                function within a foreign agent."
        ::= { mipGroups 9 }

    faRegistrationGroup    OBJECT-GROUP
        OBJECTS   {  faVisitorIPAddress, faVisitorHomeAddress,
                     faVisitorHomeAgentAddress, faVisitorTimeGranted,
                     faVisitorTimeRemaining, faVisitorRegFlags,
                     faVisitorRegIDLow, faVisitorRegIDHigh,
                     faVisitorRegIsAccepted, faRegRequestsReceived,
                     faRegRequestsRelayed, faReasonUnspecified,
                     faAdmProhibited, faInsufficientResource,
                     faMNAuthenticationFailure, faRegLifetimeTooLong,
                     faPoorlyFormedRequests,
                     faEncapsulationUnavailable,
                     faVJCompressionUnavailable, faHAUnreachable,



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                     faRegRepliesRecieved, faRegRepliesRelayed,
                     faHAAuthenticationFailure, faPoorlyFormedReplies }
        STATUS    current
        DESCRIPTION
                "A collection of objects providing management
                information for the registration function within a
                foreign agent."
        ::= { mipGroups 10 }

    haRegistrationGroup    OBJECT-GROUP
        OBJECTS   { haMobilityBindingMN, haMobilityBindingCOA,
                    haMobilityBindingSourceAddress,
                    haMobilityBindingRegFlags,
                    haMobilityBindingRegIDLow,
                    haMobilityBindingRegIDHigh,
                    haMobilityBindingTimeGranted,
                    haMobilityBindingTimeRemaining,
                    haRegistrationAccepted, haMultiBindingUnsupported,
                    haReasonUnspecified, haAdmProhibited,
                    haInsufficientResource, haMNAuthenticationFailure,
                    haFAAuthenticationFailure, haIDMismatch,
                    haPoorlyFormedRequest, haTooManyBindings,
                    haUnknownHA, haGratuitiousARPsSent,
                    haProxyARPsSent, haRegRequestsReceived,
                    haDeRegRequestsReceived, haRegRepliesSent,
                    haDeRegRepliesSent }
        STATUS    current
        DESCRIPTION
                "A collection of objects providing management
                information for the registration function within a
                home agent."
        ::= { mipGroups 11 }

    haRegNodeCountersGroup  OBJECT-GROUP
        OBJECTS   { haServiceRequestsAccepted,
                    haServiceRequestsDenied, haOverallServiceTime,
                    haRecentServiceAcceptedTime,
                    haRecentServiceDeniedTime,
                    haRecentServiceDeniedCode }
        STATUS      current
        DESCRIPTION
                "A collection of objects providing management
                information for counters related to the registration
                function within a home agent."
        ::= { mipGroups 12 }

    mipSecNotifcationsGroup NOTIFICATION-GROUP
        NOTIFICATIONS { mipAuthFailure }



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        STATUS      current
        DESCRIPTION
                "The notification related to security violations."
        ::= { mipGroups 13 }

END

<span class="h2"><a class="selflink" id="section-5" href="#section-5">5</a>.  Acknowledgments</span>

   This document was produced by the Mobile IP working group. The
   editors wish to thank Bob Stewart (Cisco Systems), for his help in
   converting from SNMPv1 to SNMPv2. We also want to thank Jim Solomon,
   for his encouragement, patience, and help. Thanks to Fredrick Tarberg
   and Fredrik Broman (KTH) for their initial efforts in defining a
   Mobile IP MIB.  Thanks to Frank Kastenholz (FTP Software) for his
   comments on the initial MIB from KTH. Thanks to Gerald Maguire (KTH)
   for his comments on the first version of this MIB. Thanks to Mike
   Roels (Motorola) for his help in testing this MIB.

<span class="h2"><a class="selflink" id="section-6" href="#section-6">6</a>.  Security Considerations</span>

   The Mobile IP MIB affords the network operator the ability to
   configure and control the Mobile IP links of a particular system,
   including the Mobile IP authentication protocols, and shared secret
   key. This represents a security risk.

   These risks are addressed in the following manners:

   (1)  All variables which represent a significant security risk are
        placed in separate MIB Groups. By providing Agent Capability
        Statements, the implementor of the MIB may elect not to
        implement these groups.

   (2)  The MIB allows the manager station to create the security
        association for Mobile IP entities. However, the agent should
        always return 0 length octet string when the manager station
        retrieves the shared security key in the mipSecAssocTable. In
        this way, the Mobile IP entities can prevent the key leaking
        from SNMP GET, GET-NEXT, or GET-BULK requests.

   (3)  The MIB defines a trap for Mobile IP entities to send a
        notification to the manager station if there is a security
        violation. In this way, the operator can notice the source of
        an intruder.

   (4)  The MIB also defines a table to log the security violations
        in the Mobile IP entities. The manager station can retrieve
        this log to analyze the security violation instances in the



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        system.

   Thus, in order to preserve the integrity, security and privacy of the
   Mobile IP security features, an implementation SHOULD allow access to
   this MIB only via SNMPv2 and with other security enhancement such as
   SNMPv2Sec. The other way to access this information is in concert
   with the IP security protocols (IP Authentication Header and IP
   Encapsulating Security Payload).

<span class="h3"><a class="selflink" id="section-7.0" href="#section-7.0">7.0</a>  References</span>

   [<a id="ref-1">1</a>]  SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and
        S. Waldbusser, "Structure of Management Information for version
        2 of the Simple Network Management Protocol (SNMPv2)", <a href="./rfc1902">RFC 1902</a>,
        January 1996.

   [<a id="ref-2">2</a>]  McCloghrie, K., and M. Rose, Editors, "Management Information
        Base for Network Management of TCP/IP-based internets: MIB-II",
        STD 17, <a href="./rfc1213">RFC 1213</a>, March 1991.

   [<a id="ref-3">3</a>]  Case, J., Fedor, M., Schoffstall, M., and J. Davin, "Simple
        Network Management Protocol", <a href="./rfc1157">RFC 1157</a>, May 1990.

   [<a id="ref-4">4</a>]  SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and
        S. Waldbusser, "Protocol Operations for version 2 of the Simple
        Network Management Protocol (SNMPv2)", <a href="./rfc1905">RFC 1905</a>, January 1996.

   [<a id="ref-5">5</a>]  SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and
        S. Waldbusser, "Management Information Base for version 2 of the
        Simple Network Management Protocol (SNMPv2)", <a href="./rfc1907">RFC 1907</a>, January
        1996.

   [<a id="ref-6">6</a>]  SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and
        S. Waldbusser, "Textual Conventions for version 2 of the Simple
        Network Management Protocol (SNMPv2)", <a href="./rfc1903">RFC 1903</a>, January 1996.

   [<a id="ref-7">7</a>]  Solomon J., "Mobile IP Protocol Applicability Statement",
        <a href="./rfc2005">RFC 2005</a>, October 1996.

   [<a id="ref-8">8</a>]  Perkins C., "IP Mobility Support", <a href="./rfc2002">RFC 2002</a>, Octoer 1996.

   [<a id="ref-9">9</a>]  Perkins C., "IP Encapsulation within IP", <a href="./rfc2003">RFC 2003</a>,
        October 1996.

   [<a id="ref-10">10</a>] Perkins C., "Minimal Encapsulation within IP", <a href="./rfc2004">RFC 2004</a>,
        October 1996.





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   [<a id="ref-11">11</a>] Hanks S. et. al., "Generic Routing Encapsulation (GRE)",
        <a href="./rfc1701">RFC 1701</a>, October 1994.

   [<a id="ref-12">12</a>] Deering, S., "ICMP Router Discovery Messages", <a href="./rfc1256">RFC 1256</a>,
        September 1991.

   [<a id="ref-13">13</a>] Atkinson, R., "IP Authentication Header", <a href="./rfc1826">RFC 1826</a>, August
        1995.

   [<a id="ref-14">14</a>] Atkinson, R., "IP Encapsulating Security Payload (ESP)", <a href="./rfc1827">RFC</a>
        <a href="./rfc1827">1827</a>, August 1995.

<span class="h2"><a class="selflink" id="section-8" href="#section-8">8</a>.  Chair's Address</span>

   The working group can be contacted via the current chair:

   Jim Solomon
   Motorola, Inc.
   1301 E. Algonquin Rd.
   Schaumburg, IL  60196

   Work:   +1-847-576-2753
   Fax:    +1-847-576-3240
   EMail: solomon@comm.mot.com



























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<span class="h2"><a class="selflink" id="section-9" href="#section-9">9</a>.  Editors' Addresses</span>

   Questions about this memo can also be directed to:

   David Cong
   Room 3149
   Motorola
   1301 East Algonquin Rd.
   Schaumburg, IL 60196

   Work:       +1-847-576-1357
   Fax:        +1-847-538-3472
   EMail:     cong@comm.mot.com


   Mark Hamlen
   Room 4413
   Motorola
   1301 East Algonquin Rd.
   Schaumburg, IL 60196

   Work:       +1-847-576-0346
   Fax:        +1-847-538-6150
   EMail:     hamlen@comm.mot.com


   Charles Perkins
   Room J1-A25
   T. J. Watson Research Center
   IBM Corporation
   30 Saw Mill River Rd.
   Hawthorne, NY  10532

   Work:   +1-914-784-7350
   Fax:    +1-914-784-7007
   EMail: perk@watson.ibm.com















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