Network Working Group
Request for Comments: 4295
Category: Standards Track
G. Keeni
Cyber Solutions Inc.
K. Koide
Tohoku University
K. Nagami
INTEC NetCore Inc.
S. Gundavelli
Cisco Systems Inc.
April 2006
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Mobile IPv6 Management Information Base

Status of This Memo

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

Copyright Notice

Copyright © The Internet Society (2006).

Abstract

This memo defines a portion of the Management Information Base (MIB), the Mobile-IPv6 MIB, for use with network management protocols in the Internet community. In particular, the Mobile-IPv6 MIB will be used to monitor and control the mobile node, home agent, and correspondent node functions of a Mobile IPv6 (MIPv6) entity.

Table of Contents

1. The Internet-Standard Management Framework
2. Overview
2.1. The Mobile IPv6 Protocol Entities
2.2. Terminology
3. Mobile IPv6 Monitoring and Control Requirements
4. MIB Design
5. The Mobile-IPv6 MIB
6. Security Considerations
7. IANA Considerations
8. References
8.1. Normative References
8.2. Informative References
9. Acknowledgements


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1 The Internet-Standard Management Framework

For a detailed overview of the documents that describe the current Internet-Standard Management Framework, please refer to section 7 of RFC 3410 [RFC3410].

Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. MIB objects are generally accessed through the Simple Network Management Protocol (SNMP).

Objects in the MIB are defined using the mechanisms defined in the Structure of Management Information (SMI). This memo specifies a MIB module that is compliant to the SMIv2, which is described in STD 58, RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580 [RFC2580].

2 Overview

2.1 The Mobile IPv6 Protocol Entities

Mobile IPv6 (MIPv6) [RFC3775] specifies a protocol that allows nodes to remain reachable while moving around in the IPv6 Internet. An entity that implements the MIPv6 protocol is a MIPv6 entity. There are three types of entities envisaged by the MIPv6 protocol.

mobile node (MN): A node that can change its point of attachment from one link to another, while still being reachable via its home address.

correspondent node (CN): A peer node with which a mobile node is communicating. The correspondent node may be either mobile or stationary. (Note that a correspondent node does not necessarily require MIPv6 support.)

home agent (HA): A router on a mobile node's home link with which the mobile node has registered its current care-of address. While the mobile node is away from home, the home agent intercepts packets on the home link destined to the mobile node's home address, encapsulates them, and routes them to the mobile node's registered care-of address.

This document defines a set of managed objects (MOs) that can be used to monitor and control MIPv6 entities.


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2.2 Terminology

The terminology used in this document is consistent with the definitions used in Mobile IPv6 protocol specification [RFC3775].

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in BCP 14, RFC 2119 [RFC2119].

3 Mobile IPv6 Monitoring and Control Requirements

For managing a MIPv6 entity it is necessary to monitor
the following:

The MIPv6 protocol document stipulates that several MIPv6-related parameters should be manually configurable. The MIPv6 MIB should define managed objects that can be used to configure the related parameters, for example:


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4 MIB Design

The basic principle has been to keep the MIB as simple as possible and at the same time to make it effective enough so that the essential needs of monitoring and control are met. It is envisaged that wherever possible existing MIBs will be used (e.g., IPSec MIB, Neighbor Discovery MIB, Tunnel MIB [RFC4087]) for monitor and control of MIPv6 entities.

It is assumed that the Mobile IPv6 Management Information Base (MOBILEIPV6-MIB) will always be implemented in conjunction with the IPv6-capable version of the IP-MIB [RFC4293]. The MOBILEIPV6-MIB uses the textual conventions defined in the INET-ADDRESS-MIB [RFC4001].

The Mobile-IPv6 MIB is composed of the following groups of definitions:

       - mip6Core: a generic group containing objects that are
         common to all the Mobile IPv6 entities.
       - mip6Ha: this group models the home agent service.  It is
         composed of objects specific to the services and associated
         advertisement parameters offered by the home agent on each
         of its links.  It also contains objects pertaining to the
         maintenance of the home agent list on each of the links on
         which the service is offered.
       - mip6Mn: this group models the mobile node service.  It is
         composed of objects specific to the Dynamic Home Agent
         discovery function and related parameters.  It also contains
         objects that record the movement of the mobile node.
       - mip6Cn: models the correspondent node and is primarily
         scoped to its participation in the Return Routability
         procedure for achieving Route Optimization triggered by
         the mobile node.
       - mip6Notifications: defines the set of notifications that
         will be used to asynchronously monitor the Mobile IPv6
         entities.

The tables contained in the above groups are as follows:

       mip6BindingCacheTable   : models the binding cache on the home
                                 agent and correspondent node.  It
                                 contains details of the Binding Update
                                 requests that have been received and
                                 accepted.
       mip6BindingHistoryTable : tracks the history of the binding
                                 cache.
       mip6NodeTrafficTable    : the mobile node-wise traffic counters.


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mip6MnHomeAddressTable : contains all the home addresses pertaining to the mobile node and the corresponding registration status.

       mip6MnBLTable           : models the Binding Update List on the
                                 mobile node.  It contains information
                                 about the registration requests sent
                                 by the mobile node and the
                                 corresponding results.
       mip6CnCounterTable      : contains the mobile node-wise
                                 registration statistics.
       mip6HaConfTable         : contains the configurable
                                 advertisement parameters for all the
                                 interfaces on which the home agent
                                 service is advertised.
       mip6HaCounterTable      : contains registration statistics
                                 for all mobile nodes registered
                                 with the home agent.
       mip6HaListTable         : contains the list of all routers
                                 that are acting as home agents on
                                 each of the interfaces on which
                                 the home agent service is offered
                                 by this router.
       mip6HaGlAddrTable       : contains the global addresses of
                                 the home agents.


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5 The Mobile-IPv6 MIB.

      MOBILEIPV6-MIB DEFINITIONS ::= BEGIN
       IMPORTS
         MODULE-IDENTITY, mib-2, Unsigned32, Integer32, Counter32,
         Gauge32, Counter64,
         OBJECT-TYPE, NOTIFICATION-TYPE
                    FROM SNMPv2-SMI
         TEXTUAL-CONVENTION,
         TruthValue, DateAndTime, TimeStamp
                    FROM SNMPv2-TC
         MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP
                    FROM SNMPv2-CONF
         InetAddressType, InetAddress
                    FROM INET-ADDRESS-MIB
         ipv6InterfaceIfIndex
                    FROM IP-MIB
         ;

mip6MIB MODULE-IDENTITY

          LAST-UPDATED "200602010000Z"        --  1st February 2006
          ORGANIZATION "IETF mip6 Working Group"
          CONTACT-INFO
         "                      Glenn Mansfield Keeni
                        Postal: Cyber Solutions Inc.
                                6-6-3, Minami Yoshinari
                                Aoba-ku, Sendai, Japan 989-3204.
                           Tel: +81-22-303-4012
                           Fax: +81-22-303-4015
                        E-mail: glenn@cysols.com

Kenichi Nagami
Postal: INTEC NetCore Inc.
1-3-3, Shin-suna
Koto-ku, Tokyo, 135-0075
Japan

Tel: +81-3-5665-5069
E-mail: nagami@inetcore.com

Kazuhide Koide
Postal: Tohoku University
2-1-1, Katahira
Aoba-ku, Sendai, 980-8577
Japan

Tel: +81-22-217-5454
E-mail: koide@shiratori.riec.tohoku.ac.jp


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Sri Gundavelli
Postal: Cisco Systems
170 W.Tasman Drive,
San Jose, CA 95134
USA

Tel: +1-408-527-6109
E-mail: sgundave@cisco.com

Support Group E-mail: mip6@ietf.org"

DESCRIPTION
"The MIB module for monitoring Mobile-IPv6 entities.

Copyright © The Internet Society 2006. This version of this MIB module is part of RFC 4295; see the RFC itself for full legal notices. "

             REVISION    "200602010000Z"      -- 1st February 2006
             DESCRIPTION "Initial version, published as RFC 4295."

                  ::= { mib-2 133 }

       -- The major groups

       mip6Notifications        OBJECT IDENTIFIER ::= { mip6MIB 0 }
       mip6Objects              OBJECT IDENTIFIER ::= { mip6MIB 1 }
       mip6Conformance          OBJECT IDENTIFIER ::= { mip6MIB 2 }
       mip6Core                 OBJECT IDENTIFIER ::= { mip6Objects 1 }
       mip6Mn                   OBJECT IDENTIFIER ::= { mip6Objects 2 }
       mip6Cn                   OBJECT IDENTIFIER ::= { mip6Objects 3 }
       mip6Ha                   OBJECT IDENTIFIER ::= { mip6Objects 4 }

       -- The sub groups

       mip6System               OBJECT IDENTIFIER ::= { mip6Core 1 }
       mip6Bindings             OBJECT IDENTIFIER ::= { mip6Core 2 }
       mip6Stats                OBJECT IDENTIFIER ::= { mip6Core 3 }

       mip6MnSystem             OBJECT IDENTIFIER ::= { mip6Mn 1 }
       mip6MnConf               OBJECT IDENTIFIER ::= { mip6Mn 2 }
       mip6MnRegistration       OBJECT IDENTIFIER ::= { mip6Mn 3 }

       mip6CnSystem             OBJECT IDENTIFIER ::= { mip6Cn 1 }


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       mip6CnStats              OBJECT IDENTIFIER ::= { mip6Cn 2 }

       mip6HaAdvertisement      OBJECT IDENTIFIER ::= { mip6Ha 1 }
       mip6HaStats              OBJECT IDENTIFIER ::= { mip6Ha 2 }

      -- Textual Conventions
       Mip6BURequestRejectionCode ::= TEXTUAL-CONVENTION
              STATUS        current
              DESCRIPTION
                      "The value of the status field in the Binding
                       Acknowledgment message when the Binding Update
                       was rejected.
                      "
              REFERENCE
                      "RFC 3775 : Section 6.1.8"
              SYNTAX  INTEGER {
                      reasonUnspecified               (1),  --(Code 128)
                      admProhibited                   (2),  --(Code 129)
                      insufficientResource            (3),  --(Code 130)
                      homeRegistrationNotSupported    (4),  --(Code 131)
                      notHomeSubnet                   (5),  --(Code 132)
                      notHomeAgentForThisMobileNode   (6),  --(Code 133)
                      duplicateAddressDetectionFailed (7),  --(Code 134)
                      sequenceNumberOutOfWindow       (8),  --(Code 135)
                      expiredHomeNonceIndex           (9),  --(Code 136)
                      expiredCareofNonceIndex         (10), --(Code 137)
                      expiredNonces                   (11), --(Code 138)
                      registrationTypeChangeDisallowed(12)  --(Code 139)
                     }


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mip6Capabilities OBJECT-TYPE

           SYNTAX      BITS {
                            mobileNode         (0),
                            homeAgent          (1),
                            correspondentNode  (2)
                       }
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "This object indicates the Mobile IPv6 functions that
                    are supported by this managed entity.  Multiple
                    Mobile IPv6 functions may be supported by a single
                    entity.
                   "
           REFERENCE
                   "RFC 3775 : Section 3.2, 4.1"
           ::= { mip6System 1 }

mip6Status OBJECT-TYPE

           SYNTAX      INTEGER { enabled(1), disabled(2) }
           MAX-ACCESS  read-write
           STATUS      current
           DESCRIPTION
                   "This object indicates whether the Mobile IPv6
                    function is enabled for the managed entity.  If it
                    is enabled, the agent discovery and registration
                    functions will be operational.
                    Changing the status from enabled(1) to disabled(2)
                    will terminate the agent discovery and registration
                    functions.  On the other hand, changing the status
                    from disabled(2) to enabled(1) will start the agent
                    discovery and registration functions.

The value of this object SHOULD remain unchanged across reboots of the managed entity.
"

           ::= { mip6System 2 }

       -- mip6BindingCache


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mip6BindingCacheTable OBJECT-TYPE

           SYNTAX      SEQUENCE OF Mip6BindingCacheEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                   "This table models the Binding Cache on the
                    managed entity.  The cache is maintained by home
                    agents and correspondent nodes.  It contains
                    both correspondent registration entries and home
                    registration entries.

Entries in this table are not required to survive a reboot of the managed entity.
"
REFERENCE
"RFC 3775 : Section 4.5, 9.1, 10.1"

           ::= { mip6Bindings 1 }

mip6BindingCacheEntry OBJECT-TYPE

           SYNTAX      Mip6BindingCacheEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                   "This entry represents a conceptual row in the
                    binding cache table.  It represents a single Binding
                    Update.

Implementors need to be aware that if the total number of octets in mip6BindingHomeAddress exceeds 113, then OIDs of column
instances in this row will have more than 128 sub-identifiers and cannot be accessed using SNMPv1, SNMPv2c, or SNMPv3.
"
INDEX { mip6BindingHomeAddressType, mip6BindingHomeAddress }

           ::= { mip6BindingCacheTable 1 }


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        Mip6BindingCacheEntry ::=
           SEQUENCE {
            mip6BindingHomeAddressType   InetAddressType,
            mip6BindingHomeAddress       InetAddress,
            mip6BindingCOAType           InetAddressType,
            mip6BindingCOA               InetAddress,
            mip6BindingTimeRegistered    DateAndTime,
            mip6BindingTimeGranted       Gauge32,
            mip6BindingTimeRemaining     Gauge32,
            mip6BindingHomeRegn          TruthValue,
            mip6BindingMaxSeq            Unsigned32,
            mip6BindingUsageTS           DateAndTime,
            mip6BindingUsageCount        Gauge32,
            mip6BindingAdminStatus       INTEGER
           }

mip6BindingHomeAddressType OBJECT-TYPE

           SYNTAX      InetAddressType
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                   "The InetAddressType of the mip6BindingHomeAddress
                    that follows.
                   "
           ::= { mip6BindingCacheEntry 1 }

mip6BindingHomeAddress OBJECT-TYPE

           SYNTAX      InetAddress
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                   "The home address of the mobile node corresponding
                    to the Binding Cache entry.  This field is used as
                    the key for searching the mobile node's current
                    care-of address in the Binding Cache.

The type of the address represented by this object is specified by the corresponding
mip6BindingHomeAddressType object.
"
REFERENCE
"RFC 3775 : Section 9.1"

           ::= { mip6BindingCacheEntry 2 }


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       mip6BindingCOAType   OBJECT-TYPE
           SYNTAX      InetAddressType
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The InetAddressType of the mip6BindingCOA that
                    follows.
                   "
           ::= { mip6BindingCacheEntry 3 }

       mip6BindingCOA   OBJECT-TYPE
           SYNTAX      InetAddress
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The care-of address of the mobile node indicated by
                    the home address field (mip6BindingHomeAddress) in
                    this Binding Cache entry.

The type of the address represented by this object is specified by the corresponding mip6BindingCOAType object.
"
REFERENCE
"RFC 3775 : Section 9.1"

           ::= { mip6BindingCacheEntry 4 }

mip6BindingTimeRegistered OBJECT-TYPE

           SYNTAX      DateAndTime
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The timestamp when this Binding Cache entry was
                    created.
                   "
           ::= { mip6BindingCacheEntry 5 }

mip6BindingTimeGranted OBJECT-TYPE

           SYNTAX      Gauge32
           UNITS       "seconds"
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The lifetime in seconds granted to the mobile node
                    for this registration.
                   "
           ::= { mip6BindingCacheEntry 6 }


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mip6BindingTimeRemaining OBJECT-TYPE

           SYNTAX      Gauge32
           UNITS       "seconds"
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The lifetime in seconds remaining for this
                    registration.
                   "
           REFERENCE
                   "RFC 3775 : Section 9.1"
           ::= { mip6BindingCacheEntry 7 }

mip6BindingHomeRegn OBJECT-TYPE

           SYNTAX      TruthValue
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "This object indicates whether or not this Binding
                    Cache entry is a home registration entry (applicable
                    only on nodes that support home agent
                    functionality).
                   "
           REFERENCE
                   "RFC 3775 : Section 9.1"
           ::= { mip6BindingCacheEntry 8 }

mip6BindingMaxSeq OBJECT-TYPE

           SYNTAX      Unsigned32 (0..65536)
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The maximum value of the Sequence Number field
                    received in previous Binding Updates for this home
                    address (mip6BindingHomeAddress).
                   "
           REFERENCE
                   "RFC 3775 : Section 9.1, 9.5.1"
           ::= { mip6BindingCacheEntry 9 }


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mip6BindingUsageTS OBJECT-TYPE

           SYNTAX      DateAndTime
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The timestamp when this entry was last looked up.
                   "
           REFERENCE
                   "RFC 3775 : Section 9.1"
           ::= { mip6BindingCacheEntry 10 }

mip6BindingUsageCount OBJECT-TYPE

           SYNTAX      Gauge32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The number of times this entry was looked up.
                   "
           REFERENCE
                   "RFC 3775 : Section 9.1"
           ::= { mip6BindingCacheEntry 11 }

mip6BindingAdminStatus OBJECT-TYPE

           SYNTAX      INTEGER {
                           active     (1),
                           inactive   (2)
                       }
           MAX-ACCESS  read-write
           STATUS      current
           DESCRIPTION
                   "This is an administrative object used to control
                    the status of a binding cache entry.  By default
                    the value will be 'active'(1).
                    A value of 'inactive'(2) will indicate that the
                    validity of the entry is suspended.  It does not
                    exist in the binding cache for all practical
                    purposes.
                    The state can be changed from 'active' to
                    'inactive' by operator intervention.
                    Causing the state to change to 'inactive' results
                    in the entry being deleted from the cache.
                    Attempts to change the status from 'inactive'
                    to 'active' will be rejected.
                   "
           REFERENCE
                   "RFC 3775 : Section 9.1"
           ::= { mip6BindingCacheEntry 12 }


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       -- mip6BindingHistory
       -- Once the lifetime expires an entry will be removed from the
       -- Binding Cache.
       -- For monitoring purposes it will be useful to have access to
       -- the history of the Binding Cache.  BindingHistoryTable serves
       -- this purpose.  It records the history of the Bindings.
       -- The size of the table will be left to implementors.

mip6BindingHistoryTable OBJECT-TYPE

           SYNTAX      SEQUENCE OF Mip6BindingHistoryEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                   "A table containing a record of the bindings.
                   "
           ::= { mip6Bindings 2 }

mip6BindingHistoryEntry OBJECT-TYPE

           SYNTAX      Mip6BindingHistoryEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                   "The record of a binding.

Implementors need to be aware that if the total number of octets in mip6BindingHstHomeAddress exceeds 112, then OIDs of column
instances in this row will have more than 128 sub-identifiers and cannot be accessed using SNMPv1, SNMPv2c, or SNMPv3.
"

           INDEX   { mip6BindingHstHomeAddressType,
                     mip6BindingHstHomeAddress ,
                     mip6BindingHstIndex}
           ::= { mip6BindingHistoryTable 1 }


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        Mip6BindingHistoryEntry ::=
           SEQUENCE {
            mip6BindingHstHomeAddressType   InetAddressType,
            mip6BindingHstHomeAddress       InetAddress,
            mip6BindingHstIndex             Unsigned32,
            mip6BindingHstCOAType           InetAddressType,
            mip6BindingHstCOA               InetAddress,
            mip6BindingHstTimeRegistered    DateAndTime,
            mip6BindingHstTimeExpired       DateAndTime,
            mip6BindingHstHomeRegn          TruthValue,
            mip6BindingHstUsageTS           DateAndTime,
            mip6BindingHstUsageCount        Gauge32
           }

mip6BindingHstHomeAddressType OBJECT-TYPE

           SYNTAX      InetAddressType
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                   "The InetAddressType of the
                    mip6BindingHstHomeAddress that follows.
                   "
           ::= { mip6BindingHistoryEntry 1 }

mip6BindingHstHomeAddress OBJECT-TYPE

           SYNTAX      InetAddress
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                   "Mobile node's home address.

The type of the address represented by this object is specified by the corresponding
mip6BindingHstHomeAddressType object.
"

           ::= { mip6BindingHistoryEntry 2 }

mip6BindingHstIndex OBJECT-TYPE

           SYNTAX      Unsigned32 (1..4294967295)
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                   "The index to uniquely identify this record along
                    with the mobile node's HomeAddress type and
                    HomeAddress.  It should be monotonically increasing.
                    It may wrap after reaching its max value."
           ::= { mip6BindingHistoryEntry 3 }


Page 17

       mip6BindingHstCOAType   OBJECT-TYPE
           SYNTAX      InetAddressType
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The InetAddressType of the mip6BindingHstCOA that
                    follows.
                   "
           ::= { mip6BindingHistoryEntry 4 }

       mip6BindingHstCOA   OBJECT-TYPE
           SYNTAX      InetAddress
           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.
                    The type of the address represented by this object
                    is specified by the corresponding
                    mip6BindingHstCOAType object.
                   "
           ::= { mip6BindingHistoryEntry 5 }

mip6BindingHstTimeRegistered OBJECT-TYPE

           SYNTAX      DateAndTime
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The timestamp when this Binding Cache entry was
                    created.
                   "
           ::= { mip6BindingHistoryEntry 6 }

mip6BindingHstTimeExpired OBJECT-TYPE

           SYNTAX      DateAndTime
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The timestamp when this Binding Cache entry expired.
                   "
           ::= { mip6BindingHistoryEntry 7 }


Page 18

mip6BindingHstHomeRegn OBJECT-TYPE

           SYNTAX      TruthValue
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "This object indicates whether or not this Binding
                    Cache entry is a home registration entry (applicable
                    only on nodes that support home agent
                    functionality).
                   "
           ::= { mip6BindingHistoryEntry 8 }

mip6BindingHstUsageTS OBJECT-TYPE

           SYNTAX      DateAndTime
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The timestamp when this entry was last looked up.
                   "
           ::= { mip6BindingHistoryEntry 9 }

mip6BindingHstUsageCount OBJECT-TYPE

           SYNTAX      Gauge32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The number of times this entry was looked up.
                   "
           ::= { mip6BindingHistoryEntry 10 }

       -- mip6TrafficCounters

       -- MIPv6 Traffic will be characterized by
       -- IPv6 datagrams which satisfy at least one of the following
       -- conditions
       --   - the datagrams are tunneled to the mobile node by the HA
       --   - the datagrams are reverse tunneled by the MN to the HA
       --   - the datagrams have the Routing header type 2 set.
       --   - the datagrams have the Home Address option set in the
       --     Destination Option extension header
       --   - the datagrams have the mobility header

        mip6TotalTraffic OBJECT IDENTIFIER ::= { mip6Stats 1 }
       --  REFERENCE
       --             "RFC 3775 : Section 4.1, 6.3, 6.4"


Page 19

mip6InOctets OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                  "The total number of octets in the MIPv6 datagrams
                   received by the MIPv6 entity.  This will include
                   datagrams with the Mobility Header, the Home Address
                   option in the Destination Option extension header
                   (Next Header value = 60), or the type 2 Routing
                   Header.  It will also include the IPv6 datagrams that
                   are reverse tunneled to a home agent from a mobile
                   node's home address.
                   Discontinuities in the value of this counter can
                   occur at re-initialization of the management system,
                   and at other times as indicated by the value of
                   mip6CounterDiscontinuityTime.
                  "
           REFERENCE
                      "RFC 3775 : Section 6.1, 6.3, 6.4, 10.4.5"
           ::= { mip6TotalTraffic 1 }

mip6HCInOctets OBJECT-TYPE

           SYNTAX      Counter64
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                  "The total number of octets in the MIPv6 datagrams
                   received by the MIPv6 entity.  This will include
                   datagrams with the Mobility Header, the Home Address
                   option in the Destination Option extension header
                   (Next Header value = 60), or the type 2 Routing
                   Header.  It will also include the IPv6 datagrams that
                   are reverse tunneled to a home agent from a mobile
                   node's home address.
                   This object is a 64-bit version of mip6InOctets.
                   Discontinuities in the value of this counter can
                   occur at re-initialization of the management system,
                   and at other times as indicated by the value of
                   mip6CounterDiscontinuityTime.
                  "
           REFERENCE
                      "RFC 3775 : Section 6.1, 6.3, 6.4, 10.4.5"
           ::= { mip6TotalTraffic 2 }


Page 20

        mip6InPkts    OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The number of MIPv6 datagrams received by the MIPv6
                    entity.  This will include datagrams with the
                    Mobility Header, the Home Address option in the
                    Destination Option extension header (Next Header
                    value = 60), or the type 2 Routing Header.
                    It will also include the IPv6 datagrams that are
                    reverse tunneled to a home agent from a mobile
                    node's home address.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                      "RFC 3775 : Section 6.1, 6.3, 6.4, 10.4.5"
           ::= { mip6TotalTraffic 3 }

        mip6HCInPkts    OBJECT-TYPE
           SYNTAX      Counter64
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The number of MIPv6 datagrams received by the MIPv6
                    entity.  This will include datagrams with the
                    Mobility Header, the Home Address option in the
                    Destination Option extension header (Next Header
                    value = 60), or the type 2 Routing Header.  It will
                    also include the IPv6 datagrams that are reverse
                    tunneled to a home agent from a mobile node's home
                    address.
                    This object is a 64-bit version of mip6InPkts.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                      "RFC 3775 : Section 6.1, 6.3, 6.4, 10.4.5"
           ::= { mip6TotalTraffic 4 }


Page 21

mip6OutOctets OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                  "The total number of octets in the MIPv6 datagrams
                   sent by the MIPv6 entity.  This will include
                   datagrams with the Mobility Header, the Home Address
                   option in the Destination Option extension header
                   (Next Header value = 60), or the type 2 Routing
                   Header.  It will also include the IPv6 datagrams that
                   are reverse tunneled to a home agent from a mobile
                   node's home address.
                   Discontinuities in the value of this counter can
                   occur at re-initialization of the management system,
                   and at other times as indicated by the value of
                   mip6CounterDiscontinuityTime.
                  "
           REFERENCE
                      "RFC 3775 : Section 6.1, 6.3, 6.4, 10.4.5"
           ::= { mip6TotalTraffic 5 }

mip6HCOutOctets OBJECT-TYPE

           SYNTAX      Counter64
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                  "The total number of octets in the MIPv6 datagrams
                   sent by the MIPv6 entity.  This will include
                   datagrams with the Mobility Header, the Home Address
                   option in the Destination Option extension header
                   (Next Header value = 60), or the type 2 Routing
                   Header.  It will also include the IPv6 datagrams that
                   are reverse tunneled to a home agent from a mobile
                   node's home address.
                   This object is a 64-bit version of mip6OutOctets.
                   Discontinuities in the value of this counter can
                   occur at re-initialization of the management system,
                   and at other times as indicated by the value of
                   mip6CounterDiscontinuityTime.
                  "
           REFERENCE
                      "RFC 3775 : Section 6.1, 6.3, 6.4, 10.4.5"
           ::= { mip6TotalTraffic 6 }


Page 22

        mip6OutPkts    OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The number of MIPv6 datagrams sent by the MIPv6
                    entity.  This will include the datagrams with
                    Mobility Header, the Home Address option in the
                    Destination Option extension header (Next Header
                    value = 60), or the type 2 Routing Header.  It will
                    also include the IPv6 datagrams that are reverse
                    tunneled to a home agent from a mobile node's home
                    address.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                      "RFC 3775 : Section 6.1, 6.3, 6.4, 10.4.5"
           ::= { mip6TotalTraffic 7 }

        mip6HCOutPkts    OBJECT-TYPE
           SYNTAX      Counter64
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The number of MIPv6 datagrams sent by the MIPv6
                    entity.  This will include datagrams with the
                    Mobility Header, the Home Address option in the
                    Destination Option extension header (Next Header
                    value = 60), or the type 2 Routing Header.  It will
                    also include the IPv6 datagrams that are reverse
                    tunneled to a home agent from a mobile node's home
                    address.
                    This object is a 64-bit version of mip6OutPkts.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                      "RFC 3775 : Section 6.1, 6.3, 6.4, 10.4.5"
           ::= { mip6TotalTraffic 8 }


Page 23

mip6CounterDiscontinuityTime OBJECT-TYPE

           SYNTAX      TimeStamp
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The value of sysUpTime on the most recent occasion
                    at which any one or more of this MIPv6 entities
                    global counters, viz., counters with OID prefix
                    'mip6TotalTraffic' or 'mip6CnGlobalStats' or
                    'mip6HaGlobalStats' suffered a discontinuity.
                    If no such discontinuities have occurred since the
                    last re-initialization of the local management
                    subsystem, then this object will have a zero value.
                   "
           ::= { mip6TotalTraffic 9 }

       -- mip6NodeTrafficCounters

mip6NodeTrafficTable OBJECT-TYPE

           SYNTAX      SEQUENCE OF Mip6NodeTrafficEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                   "A table containing MIPv6 traffic counters per mobile
                    node.
                   "
           ::= { mip6Stats 2 }

mip6NodeTrafficEntry OBJECT-TYPE

           SYNTAX      Mip6NodeTrafficEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                   "The MIPv6 traffic statistics for a mobile node.

Implementors need to be aware that if the total number of octets in mip6BindingHomeAddress exceeds 113, then OIDs of column
instances in this row will have more than 128 sub-identifiers and cannot be accessed using SNMPv1, SNMPv2c, or SNMPv3.
"
INDEX { mip6BindingHomeAddressType, mip6BindingHomeAddress }

           ::= { mip6NodeTrafficTable 1 }


Page 24

        Mip6NodeTrafficEntry ::=
           SEQUENCE {
                 mip6NodeInOctets             Counter32,
                 mip6HCNodeInOctets           Counter64,
                 mip6NodeInPkts               Counter32,
                 mip6HCNodeInPkts             Counter64,
                 mip6NodeOutOctets            Counter32,
                 mip6HCNodeOutOctets          Counter64,
                 mip6NodeOutPkts              Counter32,
                 mip6HCNodeOutPkts            Counter64,
                 mip6NodeCtrDiscontinuityTime TimeStamp
           }

mip6NodeInOctets OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The total number of octets in the MIPv6 datagrams
                    received from the mobile node by the MIPv6 entity.
                    This will include datagrams with the Mobility
                    Header or the Home Address option in the Destination
                    Option extension header (Next Header value = 60).
                    It will also include the IPv6 datagrams that are
                    reverse tunneled to a home agent from the mobile
                    node's home address.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6NodeCtrDiscontinuityTime.
                   "
           REFERENCE
                      "RFC 3775 : Section 6.1, 6.3, 6.4, 10.4.5"
           ::= { mip6NodeTrafficEntry 1 }


Page 25

mip6HCNodeInOctets OBJECT-TYPE

           SYNTAX      Counter64
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The total number of octets in the MIPv6 datagrams
                    received from the mobile node by the MIPv6 entity.
                    This will include datagrams with the Mobility
                    Header or the Home Address option in the Destination
                    Option extension header (Next Header value = 60).
                    It will also include the IPv6 datagrams that are
                    reverse tunneled to a home agent from the mobile
                    node's home address.
                    This object is a 64-bit version of mip6NodeInOctets.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6NodeCtrDiscontinuityTime.
                   "
           REFERENCE
                      "RFC 3775 : Section 6.1, 6.3, 6.4, 10.4.5"
           ::= { mip6NodeTrafficEntry 2 }

        mip6NodeInPkts    OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The number of MIPv6 datagrams received from the
                    mobile node by the MIPv6 entity.  This will include
                    the datagrams with the Mobility Header or
                    the Home Address option in the Destination
                    Option extension header (Next Header value = 60).
                    It will also include the IPv6 datagrams that are
                    reverse tunneled to a home agent from the mobile
                    node's home address.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6NodeCtrDiscontinuityTime.
                   "
           REFERENCE
                      "RFC 3775 : Section 6.1, 6.3, 6.4, 10.4.5"
           ::= { mip6NodeTrafficEntry 3 }


Page 26

        mip6HCNodeInPkts    OBJECT-TYPE
           SYNTAX      Counter64
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The number of MIPv6 datagrams received from the
                    mobile node by the MIPv6 entity.  This will include
                    datagrams with the Mobility Header or the Home
                    Address option in the Destination Option extension
                    header (Next Header value = 60).  It will also
                    include the IPv6 datagrams that are reverse tunneled
                    to a home agent from the mobile node's home address.
                    This object is a 64-bit version of mip6NodeInPkts.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6NodeCtrDiscontinuityTime.
                   "
           REFERENCE
                      "RFC 3775 : Section 6.1, 6.3, 6.4, 10.4.5"
           ::= { mip6NodeTrafficEntry 4 }

mip6NodeOutOctets OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The total number of octets in the MIPv6 datagrams
                    sent to the mobile node by the MIPv6 entity.  This
                    will include datagrams with the Mobility Header
                    or the type 2 Routing Header.  It will also include
                    the IPv6 datagrams that are tunneled by a home agent
                    to the mobile node.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6NodeCtrDiscontinuityTime.
                   "
           REFERENCE
                      "RFC 3775 : Section 6.1, 6.3, 6.4, 10.4.5"
           ::= { mip6NodeTrafficEntry 5 }


Page 27

mip6HCNodeOutOctets OBJECT-TYPE

           SYNTAX      Counter64
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                  "The total number of octets in the MIPv6 datagrams
                   sent to the mobile node by the MIPv6 entity.  This
                   will include datagrams with the Mobility Header
                   or the type 2 Routing Header.  It will also include
                   the IPv6 datagrams that are tunneled by a home agent
                   to the mobile node.
                   This object is a 64-bit version of mip6NodeOutOctets.
                   Discontinuities in the value of this counter can
                   occur at re-initialization of the management system,
                   and at other times as indicated by the value of
                   mip6NodeCtrDiscontinuityTime.
                  "
           REFERENCE
                      "RFC 3775 : Section 6.1, 6.3, 6.4, 10.4.5"
           ::= { mip6NodeTrafficEntry 6 }

        mip6NodeOutPkts    OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The number of MIPv6 datagrams sent to the mobile
                    node by the MIPv6 entity.  This will include
                    datagrams with the Mobility Header or the type 2
                    Routing Header.  It will also include the IPv6
                    datagrams that are tunneled by a home agent to the
                    mobile node.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6NodeCtrDiscontinuityTime.
                   "
           REFERENCE
                      "RFC 3775 : Section 6.1, 6.3, 6.4, 10.4.5"
           ::= { mip6NodeTrafficEntry 7 }


Page 28

        mip6HCNodeOutPkts    OBJECT-TYPE
           SYNTAX      Counter64
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                  "The number of MIPv6 datagrams sent to the mobile
                   node by the MIPv6 entity.  This will include
                   datagrams with the Mobility Header or the type 2
                   Routing Header.  It will also include the IPv6
                   datagrams that are tunneled by a home agent to the
                   mobile node.
                   This object is a 64-bit version of mip6NodeOutOctets.
                   Discontinuities in the value of this counter can
                   occur at re-initialization of the management system,
                   and at other times as indicated by the value of
                   mip6NodeCtrDiscontinuityTime.
                  "
           REFERENCE
                      "RFC 3775 : Section 6.1, 6.3, 6.4, 10.4.5"
           ::= { mip6NodeTrafficEntry 8 }

mip6NodeCtrDiscontinuityTime OBJECT-TYPE

           SYNTAX      TimeStamp
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The value of sysUpTime on the most recent occasion
                    at which any one or more of the counters in this row
                    suffered a discontinuity.  The relevant counters are
                    the specific instances of any Counter32 or Counter64
                    objects in this row.
                    If no such discontinuities have occurred since the
                    last re-initialization of the local management
                    subsystem, then this object contains a zero value.
                   "
           ::= { mip6NodeTrafficEntry 9 }

       -- mip6MnSystem Group

mip6MnHomeAddressTable OBJECT-TYPE

           SYNTAX      SEQUENCE OF Mip6MnHomeAddressEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                   "A table containing registration status for all the
                    home addresses pertaining to the mobile node.
                   "
           ::= { mip6MnSystem 1 }


Page 29

mip6MnHomeAddressEntry OBJECT-TYPE

           SYNTAX      Mip6MnHomeAddressEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                   "The registration status for a home address.

Implementors need to be aware that if the total number of octets in mip6MnHomeAddress
exceeds 113, then OIDs of column instances in this row will have more than 128 sub-identifiers and cannot be accessed using SNMPv1, SNMPv2c, or SNMPv3. "

           INDEX   { mip6MnHomeAddressType, mip6MnHomeAddress }
           ::= { mip6MnHomeAddressTable 1 }

        Mip6MnHomeAddressEntry ::=
           SEQUENCE {
                 mip6MnHomeAddressType            InetAddressType,
                 mip6MnHomeAddress                InetAddress,
                 mip6MnHomeAddressState           INTEGER
           }

mip6MnHomeAddressType OBJECT-TYPE

           SYNTAX      InetAddressType
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                   "The InetAddressType of the mip6MnHomeAddress that
                    follows.
                   "
           ::= { mip6MnHomeAddressEntry 1 }


Page 30

mip6MnHomeAddress OBJECT-TYPE

           SYNTAX      InetAddress
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                  "A unicast routable address assigned to the mobile
                   node.  This is used as the 'permanent address' of the
                   mobile node in the sense that it remains unchanged
                   regardless of the mobile node's current point of
                   attachment.  If mobile node doesn't have a home
                   address assigned yet, then this object will take the
                   default 'unspecified' value ::0.

The type of the address represented by this object is specified by the corresponding
mip6MnHomeAddressType object.
"
REFERENCE
"RFC 3775 : Section 3.2"

           ::= { mip6MnHomeAddressEntry 2 }

mip6MnHomeAddressState OBJECT-TYPE

           SYNTAX      INTEGER {
                               unknown(1),
                               home(2),
                               registered(3),
                               pending(4),
                               isolated(5)
                       }
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "This object indicates the state of the mobile node:
                    unknown     -- The state of the mobile node
                                   cannot be determined.
                    home        -- mobile node is on the home network.
                    registered  -- mobile node is on a foreign network
                                   and is registered with the home
                                   agent.
                    pending     -- mobile node has sent registration
                                   request to the home agent and is
                                   waiting for the reply.
                    isolated    -- mobile node is isolated from network,
                                   i.e., it is not in its home network,
                                   it is not registered, and no
                                   registration ack is pending.
                   "
           ::= { mip6MnHomeAddressEntry 3 }


Page 31

       -- Mobile Node Discovery and Advertisement Group Counters

mip6MnDiscoveryRequests OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of ICMP Dynamic Home Agent Address
                    Discovery Requests sent by the mobile node.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 10.5, 11.4.1"
              ::= { mip6MnConf 1 }

mip6MnDiscoveryReplies OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of ICMP Dynamic Home Agent Address
                    Discovery Replies received by the mobile node.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 10.5, 11.4.1"
              ::= { mip6MnConf 2 }


Page 32

mip6MnDiscoveryTimeouts OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of ICMP Dynamic Home Agent Address
                    Discovery Requests that timed out.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 10.5, 11.4.1, 12"
              ::= { mip6MnConf 3 }

mip6MnPrefixSolicitationsSent OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of ICMP Mobile Prefix Solicitations
                    sent by the mobile node.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 10.5, 11.4.2"
              ::= { mip6MnConf 4 }


Page 33

mip6MnPrefixAdvsRecd OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of ICMP Mobile Prefix Advertisements
                    received by the mobile node.  This will include the
                    ICMP Mobile Prefix Advertisements that failed the
                    validity checks.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 10.6, 11.4.3"
           ::= { mip6MnConf 5 }

mip6MnPrefixAdvsIgnored OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Mobile Prefix Advertisements
                    discarded by the validity check.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 10.6, 11.4.3"
           ::= { mip6MnConf 6 }


Page 34

mip6MnMovedToFN OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Number of times the mobile node has detected
                    movement to a foreign network from another
                    foreign network or from the home network, has
                    reconstructed its care-of address and has initiated
                    the care-of address registration process.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 11.5.1"
           ::= { mip6MnConf 7 }

mip6MnMovedToHN OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Number of times the mobile node has detected
                    movement from a foreign network to its home
                    network.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 11.5.4"
           ::= { mip6MnConf 8 }

       -- Mobile Node Registration Group

       -- Registration table of mobile node


Page 35

mip6MnBLTable OBJECT-TYPE

           SYNTAX      SEQUENCE OF Mip6MnBLEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                  "This table corresponds to the Binding Update List
                   (BL) that is maintained by the mobile node.  The list
                   holds an item for every binding that the mobile node
                   has established or is trying to establish.  Both
                   correspondent and home registrations are included in
                   this table.  Entries from the table are deleted as
                   the lifetime of the binding expires.
                  "
           REFERENCE
                   "RFC 3775 : Section 4.5, 11.1"
           ::= { mip6MnRegistration 1 }

mip6MnBLEntry OBJECT-TYPE

           SYNTAX      Mip6MnBLEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                   "Information about a Binding Update sent by the
                    mobile node either to its home agent or to one of
                    its correspondent nodes.

Implementors need to be aware that if the total number of octets in mip6MnHomeAddress and mip6MnBLNodeAddress exceeds 111, then OIDs of column instances in this row will have more than 128 sub-identifiers and cannot be accessed using SNMPv1, SNMPv2c, or SNMPv3.
"
INDEX { mip6MnHomeAddressType,
mip6MnHomeAddress,
mip6MnBLNodeAddressType,
mip6MnBLNodeAddress
}

           ::= { mip6MnBLTable 1 }


Page 36

       Mip6MnBLEntry ::= SEQUENCE {
           mip6MnBLNodeAddressType   InetAddressType,
           mip6MnBLNodeAddress       InetAddress,
           mip6MnBLCOAType           InetAddressType,
           mip6MnBLCOA               InetAddress,
           mip6MnBLLifeTimeRequested Unsigned32,
           mip6MnBLLifeTimeGranted   Unsigned32,
           mip6MnBLMaxSeq            Unsigned32,
           mip6MnBLTimeSent          DateAndTime,
           mip6MnBLAccepted          TruthValue,
           mip6MnBLAcceptedTime      DateAndTime,
           mip6MnBLRetransmissions   Gauge32,
           mip6MnBLDontSendBUFlag    TruthValue
           }

mip6MnBLNodeAddressType OBJECT-TYPE

           SYNTAX      InetAddressType
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                    "The InetAddressType of the mip6MnBLNodeAddress
                     that follows.
                    "
           ::= { mip6MnBLEntry 1 }

mip6MnBLNodeAddress OBJECT-TYPE

           SYNTAX      InetAddress
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                   "The address of the agent as used in the destination
                    address of the Binding Update.  The agent
                    may be a home agent or a correspondent node.

The type of the address represented by this object is specified by the corresponding
mip6MnBLNodeAddressType object.

"
REFERENCE
"RFC 3775 : Section 11.1"

           ::= { mip6MnBLEntry 2 }


Page 37

mip6MnBLCOAType OBJECT-TYPE

           SYNTAX      InetAddressType
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The InetAddressType of the mip6MnBLCOA that follows.
                   "
           ::= { mip6MnBLEntry 3 }

mip6MnBLCOA OBJECT-TYPE

           SYNTAX      InetAddress
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Care-of address that the mobile node intends to
                    register in the Binding Update request.

The type of the address represented by this object is specified by the corresponding mip6MnBLCOAType object.
"
REFERENCE
"RFC 3775 : Section 11.1"

           ::= { mip6MnBLEntry 4 }

mip6MnBLLifeTimeRequested OBJECT-TYPE

           SYNTAX      Unsigned32
           UNITS       "seconds"
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The lifetime requested by the mobile node (in
                    seconds) in the Binding Update.
                   "
           REFERENCE
                   "RFC 3775 : Section 11.1"
           ::= { mip6MnBLEntry 5 }


Page 38

mip6MnBLLifeTimeGranted OBJECT-TYPE

           SYNTAX      Unsigned32
           UNITS       "seconds"
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The lifetime granted to the mobile node for this
                    binding.  This field will be inaccessible if the
                    Binding Update request has not been accepted.
                    The lifetime remaining (lR) can be calculated using
                    the current time (cT), mip6MnBLAcceptedTime (aT) and
                    mip6MnBLLifeTimeGranted (lG) as follows:
                            lR  = lG - (cT - aT).
                    When lR is zero, this entry will be deleted from the
                    Binding Update List and consequently from this
                    table.
                   "
           ::= { mip6MnBLEntry 6 }

mip6MnBLMaxSeq OBJECT-TYPE

           SYNTAX      Unsigned32 (0..65536)
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The maximum value of the Sequence Number field sent
                    in previous Binding Updates to this destination.
                   "
           REFERENCE
                   "RFC 3775 : Section 11.1"
           ::= { mip6MnBLEntry 7 }

mip6MnBLTimeSent OBJECT-TYPE

           SYNTAX      DateAndTime
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The time when the last (re-)transmission occurred."
           REFERENCE
                   "RFC 3775 : Section 11.1"
           ::= { mip6MnBLEntry 8 }


Page 39

mip6MnBLAccepted OBJECT-TYPE

           SYNTAX      TruthValue
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "true(1) if the mobile node has received a
                    binding acknowledgment indicating that service has
                    been accepted (status code 0 or 1); false(2)
                    otherwise.  false(2) implies that the registration
                    is still pending.
                   "
           ::= { mip6MnBLEntry 9 }

mip6MnBLAcceptedTime OBJECT-TYPE

           SYNTAX      DateAndTime
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The time at which the mobile node receives a binding
                    acknowledgment indicating that Binding Update has
                    been accepted (status code 0 or 1);
                    This object will be inaccessible if the Binding
                    Update request is still pending.
                   "
           ::= { mip6MnBLEntry 10 }

mip6MnBLRetransmissions OBJECT-TYPE

           SYNTAX      Gauge32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The number of Binding Update retransmissions.
                   "
           REFERENCE
                   "RFC 3775 : Section 11.1"
           ::= { mip6MnBLEntry 11 }


Page 40

mip6MnBLDontSendBUFlag OBJECT-TYPE

           SYNTAX      TruthValue
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "true(1) indicates that future binding updates
                    will not be sent to mip6MnBLNodeAddress.
                    false(2) implies that binding updates will be
                    sent to mip6MnBLNodeAddress.
                    The mobile node sets this flag in the when it
                    receives an ICMP Parameter Problem, Code 1,
                    error message in response to a return
                    routability message or Binding Update sent to
                    mip6MnBLNodeAddress.
                   "
           REFERENCE
                   "RFC 3775 : Section 11.1"
           ::= { mip6MnBLEntry 12 }

       -- Mobile Node Registration Group Counters

       mip6MnRegnCounters OBJECT IDENTIFIER ::= { mip6MnRegistration 2 }

mip6MnMobilityMessagesSent OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The total number of mobility messages, i.e., IPv6
                    datagrams with Mobility Header, sent by the mobile
                    node.  There are 3 types of mobility messages, viz.,
                    Home Test Init, Care-of Test Init, and Binding
                    Updates, that are sent by mobile nodes.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 4.2, 6.1"
           ::= {  mip6MnRegnCounters 1 }


Page 41

mip6MnMobilityMessagesRecd OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The total number of mobility messages, i.e., IPv6
                    datagrams with Mobility Header, received by the
                    mobile node.  There are 5 types of mobility
                    messages, viz., Home Test, Care-of Test, Binding
                    Acknowledgment, Binding Refresh Request, and Binding
                    Error, that are sent to mobile nodes.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 4.2, 6.1"
           ::= {  mip6MnRegnCounters 2 }

mip6MnBUsToHA OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Updates sent to the mobile
                    node's home agent(s).
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 11.7.1"
           ::= {  mip6MnRegnCounters 3 }


Page 42

mip6MnBUAcksFromHA OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of valid binding acknowledgments
                    received from the mobile node's home agent(s).
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 11.7.3"
           ::= {  mip6MnRegnCounters 4 }

mip6MnBUsToCN OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Updates sent to
                    correspondent nodes by the mobile node.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 11.7.2"
           ::= {  mip6MnRegnCounters 5 }

mip6MnBUAcksFromCN OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of valid Binding Update acks
                    received from all the correspondent nodes.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 11.7.3"
           ::= {  mip6MnRegnCounters 6 }


Page 43

mip6MnBindingErrorsFromCN OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Error messages received
                    by mobile node from CN.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           ::= {  mip6MnRegnCounters 7 }

mip6MnICMPErrorsRecd OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of ICMP Error messages of type ICMP
                    Parameter Problem, Code 1 or Code 2, received by
                    the mobile node from a correspondent node in
                    response to a return routability procedure, a
                    Binding Update, or a packet with the Home Address
                    option.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 11.3.5"
           ::= {  mip6MnRegnCounters 8 }


Page 44

mip6MnBRRequestsRecd OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The total number of Binding Refresh requests
                    received by the mobile node from correspondent
                    nodes.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 11.7.4"
           ::= {  mip6MnRegnCounters 9 }

       -- Registration Group counters used for Correspondent Node
       mip6CnGlobalStats OBJECT IDENTIFIER ::= { mip6CnStats 1 }

       mip6CnHomeTestInitsRecd     OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Home Test Init messages received.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 9.4.1"
           ::= { mip6CnGlobalStats 1 }


Page 45

       mip6CnHomeTestsSent      OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Home Test messages sent.  If a Home
                    Test Init message is found to be valid, a Home Test
                    message will be generated and sent.  Otherwise the
                    Home Test message is silently discarded.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 9.4.3"
           ::= { mip6CnGlobalStats 2 }

       mip6CnCareOfTestInitsRecd     OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Care-of Test Init messages received.
                   "
           REFERENCE
                   "RFC 3775 : Section 9.4.2"
           ::= { mip6CnGlobalStats 3 }

       mip6CnCareOfTestsSent            OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Care-of Test messages sent.  If a
                    Care-of Test Init message is found to be valid, a
                    Care-of Test message will be generated and sent.
                    Otherwise the Care-of Test message is silently
                    discarded.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 9.4.4"
           ::= { mip6CnGlobalStats 4 }


Page 46

       mip6CnBUsRecd     OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Updates received by the
                    correspondent node from mobile nodes.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 9.5.1"
           ::= { mip6CnGlobalStats 5 }

       mip6CnBUAcksSent    OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of acknowledgments sent by the
                    correspondent node for the Binding Updates received.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 9.5.4"
           ::= { mip6CnGlobalStats 6 }

       mip6CnBRsSent     OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Refresh Request messages
                    sent by the correspondent node.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 9.5.5"
           ::= { mip6CnGlobalStats 7 }


Page 47

mip6CnBindingErrors OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Error messages sent by the
                    correspondent node to the mobile node.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 9.3.3"
           ::= { mip6CnGlobalStats 8 }

       mip6CnBUsAccepted   OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Updates accepted by the
                    correspondent node.  If a Binding Acknowledgment
                    message is sent for the Binding Update request,
                    the Status code field in the message will have
                    a value less than 128.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 9.5.1, 9.5.4"
           ::= { mip6CnGlobalStats 9 }


Page 48

       mip6CnBUsRejected   OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Update requests rejected
                    by the correspondent node.  If a Binding
                    Acknowledgment message has been sent for the Binding
                    Update request, the Status code field in the
                    message will have a value greater than or equal to
                    128.  Otherwise the Binding Update request will be
                    silently discarded.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 9.5.1, 9.5.4"
           ::= { mip6CnGlobalStats 10 }

mip6CnReasonUnspecified OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Update requests rejected by
                    the correspondent node with status code in the
                    Binding Acknowledgment message indicating 'reason
                    unspecified' (Code 128).
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 6.1.8"
           ::= { mip6CnGlobalStats 11 }


Page 49

mip6CnInsufficientResource OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Update requests rejected by
                    the correspondent node with status code in the
                    Binding Acknowledgment message indicating
                    'insufficient resources' (Code 130).
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 6.1.8"
           ::= { mip6CnGlobalStats 12 }

mip6CnHomeRegnNotSupported OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                  "Total number of Binding Update requests rejected by
                   correspondent node with status code in the Binding
                   Acknowledgment message indicating 'home registration
                   not supported' (Code 131).
                   Discontinuities in the value of this counter can
                   occur at re-initialization of the management system,
                   and at other times as indicated by the value of
                   mip6CounterDiscontinuityTime.
                  "
           REFERENCE
                   "RFC 3775 : Section 10.3.1"
           ::= { mip6CnGlobalStats 13 }


Page 50

mip6CnSeqNumberOutOfWindow OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Updates rejected by
                    correspondent node with status code in the Binding
                    Acknowledgment message indicating 'sequence number
                    out of window' (Code 135).
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 6.1.8, 9.5.1"
           ::= { mip6CnGlobalStats 14 }

mip6CnExpiredHomeNonceIndex OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The total number of Binding Updates rejected by
                    correspondent node with status code in the Binding
                    Acknowledgment message indicating 'expired home
                    nonce index' (Code 136).
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 6.1.8, 9.5.1"
           ::= { mip6CnGlobalStats 15 }


Page 51

mip6CnExpiredCareOfNonceIndex OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The total number of Binding Updates rejected by
                    correspondent node with status code in the Binding
                    Acknowledgment message indicating 'expired
                    care-of nonce index' (Code 137).
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 6.1.8, 9.5.1"
           ::= { mip6CnGlobalStats 16 }

mip6CnExpiredNonce OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The total number of Binding Updates rejected by
                    correspondent node with status code in the Binding
                    Acknowledgment message indicating 'expired nonces'
                    (Code 138), i.e., the correspondent node no longer
                    recognizes the Home Nonce Index value and the
                    Care-of Nonce Index value.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 6.1.8, 9.5.1"
           ::= { mip6CnGlobalStats 17 }


Page 52

mip6CnRegTypeChangeDisallowed OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The total number of Binding Updates rejected by
                    correspondent node with status code in the Binding
                    Acknowledgment message indicating 'registration
                    type change disallowed' (Code 139), i.e., a binding
                    already exists for the given home address and the
                    home registration flag has a different value than
                    the Home Registration (H) bit in the Binding Update.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 6.1.8, 9.5.1"
           ::= { mip6CnGlobalStats 18 }

       -- The Correspondent Node statistics by mobile node

mip6CnCounterTable OBJECT-TYPE

           SYNTAX      SEQUENCE OF Mip6CnCounterEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                   "A table containing each mobile ."
           ::= { mip6CnStats 2 }


Page 53

mip6CnCounterEntry OBJECT-TYPE

           SYNTAX      Mip6CnCounterEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                   "The set of correspondent node counters for a mobile
                    node.

Implementors need to be aware that if the total number of octets in mip6BindingHomeAddress exceeds 113, then OIDs of column instances in this row will have more than 128 sub-identifiers and cannot be accessed using SNMPv1, SNMPv2c, or SNMPv3. "

           INDEX   {    mip6BindingHomeAddressType,
                        mip6BindingHomeAddress
                   }
           ::= { mip6CnCounterTable 1 }

       Mip6CnCounterEntry ::=
           SEQUENCE {
              mip6CnBURequestsAccepted       Counter32,
              mip6CnBURequestsRejected       Counter32,
              mip6CnBCEntryCreationTime      DateAndTime,
              mip6CnBUAcceptedTime           DateAndTime,
              mip6CnBURejectionTime          DateAndTime,
              mip6CnBURejectionCode          Mip6BURequestRejectionCode,
              mip6CnCtrDiscontinuityTime     TimeStamp
           }

       mip6CnBURequestsAccepted OBJECT-TYPE   --(Code 0,1)
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Update requests from the
                    mobile node accepted by the correspondent node.
                    If Binding Acknowledgment messages are sent, then
                    the status code in the message will have a value
                    less than 128.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CnCtrDiscontinuityTime.
                   "
           ::= { mip6CnCounterEntry 1 }


Page 54

       mip6CnBURequestsRejected     OBJECT-TYPE
                                         -- (Code 128 through Code 159)
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                  "Total number of Binding Update requests from the
                   mobile node that have been rejected by the
                   correspondent node.  This includes the Binding Update
                   requests for which a Binding Acknowledgment message
                   has been sent with status code value greater than or
                   equal to 128 and the Binding Acknowledgment requests
                   that have been silently discarded.
                   Discontinuities in the value of this counter can
                   occur at re-initialization of the management system,
                   and at other times as indicated by the value of
                   mip6CnCtrDiscontinuityTime.
                  "
           ::= { mip6CnCounterEntry 2 }

       mip6CnBCEntryCreationTime        OBJECT-TYPE
           SYNTAX      DateAndTime
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The time when the current Binding Cache entry was
                    created for the mobile node.
                   "
           ::= { mip6CnCounterEntry 3 }

mip6CnBUAcceptedTime OBJECT-TYPE

           SYNTAX      DateAndTime
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The time at which the last Binding Update was
                    accepted by the correspondent node and the
                    corresponding Binding Cache entry was updated.
                   "
           ::= { mip6CnCounterEntry 4 }


Page 55

       mip6CnBURejectionTime   OBJECT-TYPE
           SYNTAX      DateAndTime
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The time at which the last Binding Update message
                    was rejected by the correspondent node.
                    If there have been no rejections, then this object
                    will be inaccessible.
                   "
           ::= { mip6CnCounterEntry 5 }

mip6CnBURejectionCode OBJECT-TYPE

              SYNTAX      Mip6BURequestRejectionCode
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                     "If a Binding Acknowledgment is sent to the mobile
                      node, this is the status code (> 128) that is
                      returned in the Binding Acknowledgment.
                      In case a Binding Acknowledgment is not sent to
                      the mobile node, then this will be the value
                      of the Status code that corresponds to the reason
                      of the rejection.  If there have been no
                      rejections, then this object will be inaccessible.
                     "
           REFERENCE
                   "RFC 3775 : Section 6.1.8"

              ::= { mip6CnCounterEntry 6 }

mip6CnCtrDiscontinuityTime OBJECT-TYPE

           SYNTAX      TimeStamp
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                  "The value of sysUpTime on the most recent occasion
                   at which any one or more of counters in this row,
                   viz., instances of 'mip6CnBURequestsAccepted' and
                   'mip6CnBURequestsRejected', suffered a discontinuity.
                   If no such discontinuities have occurred since the
                   last re-initialization of the local management
                   subsystem, then this object will have a zero value.
                  "
           ::= { mip6CnCounterEntry 7 }

       -- Home agent group


Page 56

mip6HaAdvsRecd OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of valid Router Advertisements
                    received with the Home Agent (H) bit set, on
                    all the links on which it is serving as a Home
                    Agent.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 7"
           ::= { mip6HaAdvertisement 1 }

mip6HaAdvsSent OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of unsolicited multicast Router
                    Advertisements sent with the Home Agent (H) bit set,
                    on all the links on which the router is serving as
                    a Home Agent.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
           REFERENCE
                   "RFC 3775 : Section 7"
           ::= { mip6HaAdvertisement 2 }

mip6HaConfTable OBJECT-TYPE

           SYNTAX      SEQUENCE OF Mip6HaConfEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                  "A table containing configurable advertisement
                   parameters for all interfaces on which the
                   home agent service is advertised.
                   It is RECOMMENDED that the last written values
                   of the objects in the conceptual rows of this


Page 57

table will remain unchanged across reboots of the managed entity provided that the interfaces have not been renumbered after the reboot. "

           ::= { mip6HaAdvertisement 3 }

mip6HaConfEntry OBJECT-TYPE

           SYNTAX      Mip6HaConfEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION
                  "Advertisement parameters for an interface.
                   The instances of the columnar objects in this entry
                   pertain to the interface that is uniquely identified
                   by the ipv6InterfaceIfIndex of the interface.  The
                   same ipv6InterfaceIfIndex object is used to uniquely
                   identify instances of the columnar objects of this
                   conceptual row.
                  "
           INDEX   { ipv6InterfaceIfIndex }
           ::= { mip6HaConfTable 1 }

       Mip6HaConfEntry    ::= SEQUENCE {
             mip6HaAdvPreference               Integer32,
             mip6HaAdvLifetime                 Integer32,
             mip6HaPrefixAdv                   INTEGER,
             mip6HaPrefixSolicitation          INTEGER,
             mip6HaMCastCtlMsgSupport          INTEGER
           }

mip6HaAdvPreference OBJECT-TYPE

           SYNTAX      Integer32 (0..65536)
           MAX-ACCESS  read-write
           STATUS      current
           DESCRIPTION
                  "The preference value for the home agent to
                   be used in the Router Advertisements.  Higher
                   value denotes greater preference.
                  "
           REFERENCE
                   "RFC 3775 : Section 7.4, 8.4"
           ::= { mip6HaConfEntry 1 }


Page 58

       mip6HaAdvLifetime   OBJECT-TYPE
           SYNTAX      Integer32 (1..65535)
           UNITS       "seconds"
           MAX-ACCESS  read-write
           STATUS      current
           DESCRIPTION
                  "The lifetime value for the home agent to be
                   used in the Router Advertisements.
                  "
           REFERENCE
                   "RFC 3775 : Section 7.4"
           ::= { mip6HaConfEntry 2 }

       mip6HaPrefixAdv    OBJECT-TYPE
           SYNTAX      INTEGER { enabled(1), disabled(2) }
           MAX-ACCESS  read-write
           STATUS      current
           DESCRIPTION
                   "Indicates whether the home agent should support
                    sending of the ICMP Mobile Prefix Advertisements.
                    If it is disabled(2), the home agent will not
                    send ICMP Mobile Prefix Advertisements to the
                    mobile nodes.
                    The state can be changed from enabled(1) to
                    disabled(2) and vice versa by operator
                    intervention.
                    Causing the state to change from enabled(1) to
                    disabled(2) will result in the home agent
                    disabling the Prefix advertisement function.
                    On the other hand, changing the status from
                    disabled(2) to enabled(1) will start the prefix
                    advertisement function.
                   "
           REFERENCE
                   "RFC 3775 : Section 8.4"
           ::= { mip6HaConfEntry 3}


Page 59

       mip6HaPrefixSolicitation   OBJECT-TYPE
           SYNTAX      INTEGER { enabled(1), disabled(2) }
           MAX-ACCESS  read-write
           STATUS      current
           DESCRIPTION
                   "Indicates whether the home agent should respond
                    to ICMP Mobile Prefix Solicitation messages it
                    receives from the mobile nodes.  By default, the
                    value will be set to enabled(1).  If it is
                    disabled(2), the home agent will not respond to
                    any ICMP Mobile Prefix Solicitation messages.
                    The state can be changed from enabled(1) to
                    disabled(2), by operator intervention.  Causing
                    the state to change from enabled(1) to
                    disabled(2) will result in the home agent not
                    responding to any ICMP Mobile Prefix
                    Solicitation messages it receives from the
                    mobile nodes.
                   "
           REFERENCE
                   "RFC 3775 : Section 8.4"
           ::= { mip6HaConfEntry 4}

mip6HaMCastCtlMsgSupport OBJECT-TYPE

           SYNTAX      INTEGER { enabled(1), disabled(2) }
           MAX-ACCESS  read-write
           STATUS      current
           DESCRIPTION
                   "Indicates whether the home agent should enable
                    support for the processing of the multicast
                    group membership control messages it receives
                    from the mobile nodes.  By default, the value
                    will be set to enabled(1).  If it is
                    disabled(2), the home agent will not process
                    any multicast group control messages it receives
                    from the mobile nodes.
                    The state can be changed from enabled(1) to
                    disabled(2), by operator intervention.  Causing
                    the state to change from enabled(1) to
                    disabled(2) will result in the home agent
                    disabling the processing of the multicast group
                    control messages it received from the mobile
                    nodes.
                   "
           REFERENCE
                   "RFC 3775 : Section 10.4.3"
           ::= { mip6HaConfEntry 5}


Page 60

       -- Registration Group counters HA

       mip6HaGlobalStats OBJECT IDENTIFIER ::= { mip6HaStats 1 }

       mip6HaHomeTestInitsRecd     OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Home Test Init messages received by
                    the home agent.  This will include Home Test Init
                    messages that failed the validity checks.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
             REFERENCE
                      "RFC 3775 : Section 5.2.5"
           ::= { mip6HaGlobalStats 1 }

       mip6HaHomeTestsSent      OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Home Test messages sent by the
                    home agent.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
            REFERENCE
                      "RFC 3775 : Section 5.2.5"
           ::= { mip6HaGlobalStats 2 }


Page 61

       mip6HaBUsRecd     OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Updates received by the
                    home agent.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
              REFERENCE
                      "RFC 3775 : Section 10.3.1"
           ::= { mip6HaGlobalStats 3 }

       mip6HaBUAcksSent    OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Acknowledgments sent
                    by the home agent.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
              REFERENCE
                      "RFC 3775 : Section 10.3.1"
           ::= { mip6HaGlobalStats 4 }

mip6HaBRAdviceSent OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Acknowledgments sent
                    by the home agent with Binding Refresh Advice
                    mobility option included.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
              REFERENCE
                      "RFC 3775 : Section 10.3.1"
           ::= { mip6HaGlobalStats 5 }


Page 62

       mip6HaBUsAccepted   OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Updates accepted by this HA.
                    Binding Acknowledgment with status code of 0 or 1.
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
              REFERENCE
                      "RFC 3775 : Section 10.3.1"
           ::= { mip6HaGlobalStats 6 }

       mip6HaPrefDiscoverReqd OBJECT-TYPE        -- (Code 1)
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "The total number of Binding Acknowledgments sent by
                    the home agent with status code indicating 'accepted
                    but prefix discovery necessary'  (Code 1).
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
              REFERENCE
                      "RFC 3775 : Section 10.3.1"
           ::= { mip6HaGlobalStats 7 }


Page 63

       mip6HaReasonUnspecified OBJECT-TYPE               -- (Code 128)
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Update requests rejected by
                    the home agent with status code in the Binding
                    Acknowledgment message indicating 'reason
                    unspecified' (Code 128).
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
              REFERENCE
                      "RFC 3775 : Section 10.3.1"
           ::= { mip6HaGlobalStats 8 }

mip6HaAdmProhibited OBJECT-TYPE

           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Update requests rejected by
                    the home agent with status code in the Binding
                    Acknowledgment message indicating 'administratively
                    prohibited' (Code 129).
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
              REFERENCE
                      "RFC 3775 : Section 10.3.1"
           ::= { mip6HaGlobalStats 9 }


Page 64

       mip6HaInsufficientResource OBJECT-TYPE            -- (Code 130)
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Update requests rejected by
                    the home agent with status code in the Binding
                    Acknowledgment message indicating 'insufficient
                    resources' (Code 130).
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
              REFERENCE
                      "RFC 3775 : Section 9.5.2"
           ::= { mip6HaGlobalStats 10 }

       mip6HaHomeRegnNotSupported OBJECT-TYPE    -- (Code 131)
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Update requests rejected by
                    the home agent with status code in the Binding
                    Acknowledgment message indicating 'home
                    registration not supported' (Code 131).
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
              REFERENCE
                      "RFC 3775 : Section 10.3.1"
           ::= { mip6HaGlobalStats 11 }


Page 65

       mip6HaNotHomeSubnet OBJECT-TYPE                   -- (Code 132)
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Update requests rejected by
                    the home agent with status code in the Binding
                    Acknowledgment message indicating 'not home subnet'
                    (Code 132).
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
              REFERENCE
                      "RFC 3775 : Section 10.3.1"
           ::= { mip6HaGlobalStats 12 }

       mip6HaNotHomeAgentForThisMN OBJECT-TYPE           -- (Code 133)
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
                   "Total number of Binding Update requests rejected by
                    the home agent with status code in the Binding
                    Acknowledgment message indicating 'not home agent
                    for this mobile node' (Code 133).
                    Discontinuities in the value of this counter can
                    occur at re-initialization of the management system,
                    and at other times as indicated by the value of
                    mip6CounterDiscontinuityTime.
                   "
              REFERENCE
                      "RFC 3775 : Section 10.3.2"