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rfc:rfc2011

Network Working Group K. McCloghrie, Editor Request for Comments: 2011 Cisco Systems Updates: 1213 November 1996 Category: Standards Track

                 SNMPv2 Management Information Base
               for the Internet Protocol using SMIv2

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.

IESG Note:

 The IP, UDP, and TCP MIB modules currently support only IPv4.  These
 three modules use the IpAddress type defined as an OCTET STRING of
 length 4 to represent the IPv4 32-bit internet addresses.  (See RFC
 1902, SMI for SNMPv2.)  They do not support the new 128-bit IPv6
 internet addresses.

Table of Contents

 1. Introduction ...............................................    1
 2. Definitions ................................................    2
 2.1 The IP Group ..............................................    3
 2.2 The ICMP Group.............................................   11
 2.3 Conformance Information ...................................   16
 2.3.1 Compliance Statements ...................................   16
 2.3.2 Units of Conformance ....................................   16
 3. Acknowledgements ...........................................   18
 4. References .................................................   18
 5. Security Considerations ....................................   18
 6. Editor's Address ...........................................   18

1. Introduction

 A management system contains: several (potentially many) nodes, each
 with a processing entity, termed an agent, which has access to
 management instrumentation; at least one management station; and, a
 management protocol, used to convey management information between
 the agents and management stations.  Operations of the protocol are
 carried out under an administrative framework which defines
 authentication, authorization, access control, and privacy policies.

McCloghrie Standards Track [Page 1] RFC 2011 SNMPv2 MIB for IP November 1996

 Management stations execute management applications which monitor and
 control managed elements.  Managed elements are devices such as
 hosts, routers, terminal servers, etc., which are monitored and
 controlled via access to their management information.
 Management information is viewed as a collection of managed objects,
 residing in a virtual information store, termed the Management
 Information Base (MIB).  Collections of related objects are defined
 in MIB modules.  These modules are written using a subset of OSI's
 Abstract Syntax Notation One (ASN.1) [1], termed the Structure of
 Management Information (SMI) [2].
 This document is the MIB module which defines managed objects for
 managing implementations of the Internet Protocol (IP) [3] and its
 associated Internet Control Message Protocol (ICMP) [4].
 The managed objects in this MIB module were originally defined using
 the SNMPv1 framework as a part of MIB-II [5].  Since then, the
 managed objects related to managing routes in an IP internet were
 updated by RFC 1354 [6].  This document takes the remaining MIB-II
 objects for these protocols, and defines them using the SNMPv2
 framework.

2. Definitions

IP-MIB DEFINITIONS ::= BEGIN

IMPORTS

  MODULE-IDENTITY, OBJECT-TYPE, Integer32,
  Counter32, IpAddress, mib-2        FROM SNMPv2-SMI
  PhysAddress                        FROM SNMPv2-TC
  MODULE-COMPLIANCE, OBJECT-GROUP    FROM SNMPv2-CONF;

ipMIB MODULE-IDENTITY

  LAST-UPDATED "9411010000Z"
  ORGANIZATION "IETF SNMPv2 Working Group"
  CONTACT-INFO
          "        Keith McCloghrie
           Postal: Cisco Systems, Inc.
                   170 West Tasman Drive
                   San Jose, CA  95134-1706
                   US
           Phone:  +1 408 526 5260
           Email:  kzm@cisco.com"

McCloghrie Standards Track [Page 2] RFC 2011 SNMPv2 MIB for IP November 1996

  DESCRIPTION
          "The MIB module for managing IP and ICMP implementations,
          but excluding their management of IP routes."
  REVISION      "9103310000Z"
  DESCRIPTION
          "The initial revision of this MIB module was part of MIB-
          II."
  ::= { mib-2 48}

– the IP group

ip OBJECT IDENTIFIER ::= { mib-2 4 }

ipForwarding OBJECT-TYPE

  SYNTAX      INTEGER {
                  forwarding(1),    -- acting as a router
                  notForwarding(2)  -- NOT acting as a router
              }
  MAX-ACCESS  read-write
  STATUS      current
  DESCRIPTION
          "The indication of whether this entity is acting as an IP
          router in respect to the forwarding of datagrams received
          by, but not addressed to, this entity.  IP routers forward
          datagrams.  IP hosts do not (except those source-routed via
          the host)."
  ::= { ip 1 }

ipDefaultTTL OBJECT-TYPE

  SYNTAX      INTEGER (1..255)
  MAX-ACCESS  read-write
  STATUS      current
  DESCRIPTION
          "The default value inserted into the Time-To-Live field of
          the IP header of datagrams originated at this entity,
          whenever a TTL value is not supplied by the transport layer
          protocol."
  ::= { ip 2 }

ipInReceives OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The total number of input datagrams received from
          interfaces, including those received in error."
  ::= { ip 3 }

McCloghrie Standards Track [Page 3] RFC 2011 SNMPv2 MIB for IP November 1996

ipInHdrErrors OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of input datagrams discarded due to errors in
          their IP headers, including bad checksums, version number
          mismatch, other format errors, time-to-live exceeded, errors
          discovered in processing their IP options, etc."
  ::= { ip 4 }

ipInAddrErrors OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of input datagrams discarded because the IP
          address in their IP header's destination field was not a
          valid address to be received at this entity.  This count
          includes invalid addresses (e.g., 0.0.0.0) and addresses of
          unsupported Classes (e.g., Class E).  For entities which are
          not IP routers and therefore do not forward datagrams, this
          counter includes datagrams discarded because the destination
          address was not a local address."
  ::= { ip 5 }

ipForwDatagrams OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of input datagrams for which this entity was not
          their final IP destination, as a result of which an attempt
          was made to find a route to forward them to that final
          destination.  In entities which do not act as IP routers,
          this counter will include only those packets which were
          Source-Routed via this entity, and the Source-Route option
          processing was successful."
  ::= { ip 6 }

ipInUnknownProtos OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of locally-addressed datagrams received
          successfully but discarded because of an unknown or
          unsupported protocol."

McCloghrie Standards Track [Page 4] RFC 2011 SNMPv2 MIB for IP November 1996

  ::= { ip 7 }

ipInDiscards OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of input IP datagrams for which no problems were
          encountered to prevent their continued processing, but which
          were discarded (e.g., for lack of buffer space).  Note that
          this counter does not include any datagrams discarded while
          awaiting re-assembly."
  ::= { ip 8 }

ipInDelivers OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The total number of input datagrams successfully delivered
          to IP user-protocols (including ICMP)."
  ::= { ip 9 }

ipOutRequests OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The total number of IP datagrams which local IP user-
          protocols (including ICMP) supplied to IP in requests for
          transmission.  Note that this counter does not include any
          datagrams counted in ipForwDatagrams."
  ::= { ip 10 }

ipOutDiscards OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of output IP datagrams for which no problem was
          encountered to prevent their transmission to their
          destination, but which were discarded (e.g., for lack of
          buffer space).  Note that this counter would include
          datagrams counted in ipForwDatagrams if any such packets met
          this (discretionary) discard criterion."
  ::= { ip 11 }

ipOutNoRoutes OBJECT-TYPE

McCloghrie Standards Track [Page 5] RFC 2011 SNMPv2 MIB for IP November 1996

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of IP datagrams discarded because no route could
          be found to transmit them to their destination.  Note that
          this counter includes any packets counted in ipForwDatagrams
          which meet this `no-route' criterion.  Note that this
          includes any datagrams which a host cannot route because all
          of its default routers are down."
  ::= { ip 12 }

ipReasmTimeout OBJECT-TYPE

  SYNTAX      Integer32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The maximum number of seconds which received fragments are
          held while they are awaiting reassembly at this entity."
  ::= { ip 13 }

ipReasmReqds OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of IP fragments received which needed to be
          reassembled at this entity."
  ::= { ip 14 }

ipReasmOKs OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of IP datagrams successfully re-assembled."
  ::= { ip 15 }

ipReasmFails OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of failures detected by the IP re-assembly
          algorithm (for whatever reason: timed out, errors, etc).
          Note that this is not necessarily a count of discarded IP
          fragments since some algorithms (notably the algorithm in
          RFC 815) can lose track of the number of fragments by

McCloghrie Standards Track [Page 6] RFC 2011 SNMPv2 MIB for IP November 1996

          combining them as they are received."
  ::= { ip 16 }

ipFragOKs OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of IP datagrams that have been successfully
          fragmented at this entity."
  ::= { ip 17 }

ipFragFails OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of IP datagrams that have been discarded because
          they needed to be fragmented at this entity but could not
          be, e.g., because their Don't Fragment flag was set."
  ::= { ip 18 }

ipFragCreates OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of IP datagram fragments that have been
          generated as a result of fragmentation at this entity."
  ::= { ip 19 }

– the IP address table

ipAddrTable OBJECT-TYPE

  SYNTAX      SEQUENCE OF IpAddrEntry
  MAX-ACCESS  not-accessible
  STATUS      current
  DESCRIPTION
          "The table of addressing information relevant to this
          entity's IP addresses."
  ::= { ip 20 }

ipAddrEntry OBJECT-TYPE

  SYNTAX      IpAddrEntry
  MAX-ACCESS  not-accessible
  STATUS      current
  DESCRIPTION
          "The addressing information for one of this entity's IP

McCloghrie Standards Track [Page 7] RFC 2011 SNMPv2 MIB for IP November 1996

          addresses."
  INDEX      { ipAdEntAddr }
  ::= { ipAddrTable 1 }

IpAddrEntry ::= SEQUENCE {

      ipAdEntAddr          IpAddress,
      ipAdEntIfIndex       INTEGER,
      ipAdEntNetMask       IpAddress,
      ipAdEntBcastAddr     INTEGER,
      ipAdEntReasmMaxSize  INTEGER
  }

ipAdEntAddr OBJECT-TYPE

  SYNTAX      IpAddress
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The IP address to which this entry's addressing information
          pertains."
  ::= { ipAddrEntry 1 }

ipAdEntIfIndex OBJECT-TYPE

  SYNTAX      INTEGER (1..2147483647)
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The index value which uniquely identifies the interface to
          which this entry is applicable.  The interface identified by
          a particular value of this index is the same interface as
          identified by the same value of RFC 1573's ifIndex."
  ::= { ipAddrEntry 2 }

ipAdEntNetMask OBJECT-TYPE

  SYNTAX      IpAddress
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The subnet mask associated with the IP address of this
          entry.  The value of the mask is an IP address with all the
          network bits set to 1 and all the hosts bits set to 0."
  ::= { ipAddrEntry 3 }

ipAdEntBcastAddr OBJECT-TYPE

  SYNTAX      INTEGER (0..1)
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The value of the least-significant bit in the IP broadcast

McCloghrie Standards Track [Page 8] RFC 2011 SNMPv2 MIB for IP November 1996

          address used for sending datagrams on the (logical)
          interface associated with the IP address of this entry.  For
          example, when the Internet standard all-ones broadcast
          address is used, the value will be 1.  This value applies to
          both the subnet and network broadcasts addresses used by the
          entity on this (logical) interface."
  ::= { ipAddrEntry 4 }

ipAdEntReasmMaxSize OBJECT-TYPE

  SYNTAX      INTEGER (0..65535)
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The size of the largest IP datagram which this entity can
          re-assemble from incoming IP fragmented datagrams received
          on this interface."
  ::= { ipAddrEntry 5 }

– ipRouteTable ::= { ip 21 } obsolete

– the IP Address Translation table

– The Address Translation tables contain the IpAddress to – "physical" address equivalences. Some interfaces do not – use translation tables for determining address – equivalences (e.g., DDN-X.25 has an algorithmic method); – if all interfaces are of this type, then the Address – Translation table is empty, i.e., has zero entries.

ipNetToMediaTable OBJECT-TYPE

  SYNTAX      SEQUENCE OF IpNetToMediaEntry
  MAX-ACCESS  not-accessible
  STATUS      current
  DESCRIPTION
          "The IP Address Translation table used for mapping from IP
          addresses to physical addresses."
  ::= { ip 22 }

ipNetToMediaEntry OBJECT-TYPE

  SYNTAX      IpNetToMediaEntry
  MAX-ACCESS  not-accessible
  STATUS      current
  DESCRIPTION
          "Each entry contains one IpAddress to `physical' address
          equivalence."
  INDEX       { ipNetToMediaIfIndex,
                ipNetToMediaNetAddress }

McCloghrie Standards Track [Page 9] RFC 2011 SNMPv2 MIB for IP November 1996

  ::= { ipNetToMediaTable 1 }

IpNetToMediaEntry ::= SEQUENCE {

      ipNetToMediaIfIndex      INTEGER,
      ipNetToMediaPhysAddress  PhysAddress,
      ipNetToMediaNetAddress   IpAddress,
      ipNetToMediaType         INTEGER
  }

ipNetToMediaIfIndex OBJECT-TYPE

  SYNTAX      INTEGER (1..2147483647)
  MAX-ACCESS  read-create
  STATUS      current
  DESCRIPTION
          "The interface on which this entry's equivalence is
          effective.  The interface identified by a particular value
          of this index is the same interface as identified by the
          same value of RFC 1573's ifIndex."
  ::= { ipNetToMediaEntry 1 }

ipNetToMediaPhysAddress OBJECT-TYPE

  SYNTAX      PhysAddress
  MAX-ACCESS  read-create
  STATUS      current
  DESCRIPTION
          "The media-dependent `physical' address."
  ::= { ipNetToMediaEntry 2 }

ipNetToMediaNetAddress OBJECT-TYPE

  SYNTAX      IpAddress
  MAX-ACCESS  read-create
  STATUS      current
  DESCRIPTION
          "The IpAddress corresponding to the media-dependent
          `physical' address."
  ::= { ipNetToMediaEntry 3 }

ipNetToMediaType OBJECT-TYPE

  SYNTAX      INTEGER {
              other(1),        -- none of the following
              invalid(2),      -- an invalidated mapping
              dynamic(3),
              static(4)
          }
  MAX-ACCESS  read-create
  STATUS      current
  DESCRIPTION
          "The type of mapping.

McCloghrie Standards Track [Page 10] RFC 2011 SNMPv2 MIB for IP November 1996

          Setting this object to the value invalid(2) has the effect
          of invalidating the corresponding entry in the
          ipNetToMediaTable.  That is, it effectively disassociates
          the interface identified with said entry from the mapping
          identified with said entry.  It is an implementation-
          specific matter as to whether the agent removes an
          invalidated entry from the table.  Accordingly, management
          stations must be prepared to receive tabular information
          from agents that corresponds to entries not currently in
          use.  Proper interpretation of such entries requires
          examination of the relevant ipNetToMediaType object."
  ::= { ipNetToMediaEntry 4 }

ipRoutingDiscards OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of routing entries which were chosen to be
          discarded even though they are valid.  One possible reason
          for discarding such an entry could be to free-up buffer
          space for other routing entries."
  ::= { ip 23 }

– the ICMP group

icmp OBJECT IDENTIFIER ::= { mib-2 5 }

icmpInMsgs OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The total number of ICMP messages which the entity
          received.  Note that this counter includes all those counted
          by icmpInErrors."
  ::= { icmp 1 }

icmpInErrors OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP messages which the entity received but
          determined as having ICMP-specific errors (bad ICMP
          checksums, bad length, etc.)."
  ::= { icmp 2 }

McCloghrie Standards Track [Page 11] RFC 2011 SNMPv2 MIB for IP November 1996

icmpInDestUnreachs OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Destination Unreachable messages
          received."
  ::= { icmp 3 }

icmpInTimeExcds OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Time Exceeded messages received."
  ::= { icmp 4 }

icmpInParmProbs OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Parameter Problem messages received."
  ::= { icmp 5 }

icmpInSrcQuenchs OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Source Quench messages received."
  ::= { icmp 6 }

icmpInRedirects OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Redirect messages received."
  ::= { icmp 7 }

icmpInEchos OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Echo (request) messages received."
  ::= { icmp 8 }

McCloghrie Standards Track [Page 12] RFC 2011 SNMPv2 MIB for IP November 1996

icmpInEchoReps OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Echo Reply messages received."
  ::= { icmp 9 }

icmpInTimestamps OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Timestamp (request) messages received."
  ::= { icmp 10 }

icmpInTimestampReps OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Timestamp Reply messages received."
  ::= { icmp 11 }

icmpInAddrMasks OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Address Mask Request messages received."
  ::= { icmp 12 }

icmpInAddrMaskReps OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Address Mask Reply messages received."
  ::= { icmp 13 }

icmpOutMsgs OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The total number of ICMP messages which this entity
          attempted to send.  Note that this counter includes all
          those counted by icmpOutErrors."

McCloghrie Standards Track [Page 13] RFC 2011 SNMPv2 MIB for IP November 1996

  ::= { icmp 14 }

icmpOutErrors OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP messages which this entity did not send
          due to problems discovered within ICMP such as a lack of
          buffers.  This value should not include errors discovered
          outside the ICMP layer such as the inability of IP to route
          the resultant datagram.  In some implementations there may
          be no types of error which contribute to this counter's
          value."
  ::= { icmp 15 }

icmpOutDestUnreachs OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Destination Unreachable messages sent."
  ::= { icmp 16 }

icmpOutTimeExcds OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Time Exceeded messages sent."
  ::= { icmp 17 }

icmpOutParmProbs OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Parameter Problem messages sent."
  ::= { icmp 18 }

icmpOutSrcQuenchs OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Source Quench messages sent."
  ::= { icmp 19 }

McCloghrie Standards Track [Page 14] RFC 2011 SNMPv2 MIB for IP November 1996

icmpOutRedirects OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Redirect messages sent.  For a host,
          this object will always be zero, since hosts do not send
          redirects."
  ::= { icmp 20 }

icmpOutEchos OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Echo (request) messages sent."
  ::= { icmp 21 }

icmpOutEchoReps OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Echo Reply messages sent."
  ::= { icmp 22 }

icmpOutTimestamps OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Timestamp (request) messages sent."
  ::= { icmp 23 }

icmpOutTimestampReps OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Timestamp Reply messages sent."
  ::= { icmp 24 }

icmpOutAddrMasks OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Address Mask Request messages sent."

McCloghrie Standards Track [Page 15] RFC 2011 SNMPv2 MIB for IP November 1996

  ::= { icmp 25 }

icmpOutAddrMaskReps OBJECT-TYPE

  SYNTAX      Counter32
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The number of ICMP Address Mask Reply messages sent."
  ::= { icmp 26 }

– conformance information

ipMIBConformance OBJECT IDENTIFIER ::= { ipMIB 2 }

ipMIBCompliances OBJECT IDENTIFIER ::= { ipMIBConformance 1 } ipMIBGroups OBJECT IDENTIFIER ::= { ipMIBConformance 2 }

– compliance statements

ipMIBCompliance MODULE-COMPLIANCE

  STATUS  current
  DESCRIPTION
          "The compliance statement for SNMPv2 entities which
          implement IP."
  MODULE  -- this module
      MANDATORY-GROUPS { ipGroup,
                         icmpGroup }
  ::= { ipMIBCompliances 1 }

– units of conformance

ipGroup OBJECT-GROUP

  OBJECTS   { ipForwarding, ipDefaultTTL, ipInReceives,
              ipInHdrErrors, ipInAddrErrors,
              ipForwDatagrams, ipInUnknownProtos,
              ipInDiscards, ipInDelivers, ipOutRequests,
              ipOutDiscards, ipOutNoRoutes,
              ipReasmTimeout, ipReasmReqds, ipReasmOKs,
              ipReasmFails, ipFragOKs,
              ipFragFails, ipFragCreates,
              ipAdEntAddr, ipAdEntIfIndex, ipAdEntNetMask,
              ipAdEntBcastAddr, ipAdEntReasmMaxSize,
              ipNetToMediaIfIndex, ipNetToMediaPhysAddress,
              ipNetToMediaNetAddress, ipNetToMediaType,
              ipRoutingDiscards }
  STATUS    current
  DESCRIPTION

McCloghrie Standards Track [Page 16] RFC 2011 SNMPv2 MIB for IP November 1996

          "The ip group of objects providing for basic management of
          IP entities, exclusive of the management of IP routes."
  ::= { ipMIBGroups 1 }

icmpGroup OBJECT-GROUP

  OBJECTS   { icmpInMsgs, icmpInErrors,
              icmpInDestUnreachs, icmpInTimeExcds,
              icmpInParmProbs, icmpInSrcQuenchs,
              icmpInRedirects, icmpInEchos,
              icmpInEchoReps, icmpInTimestamps,
              icmpInTimestampReps, icmpInAddrMasks,
              icmpInAddrMaskReps, icmpOutMsgs,
              icmpOutErrors, icmpOutDestUnreachs,
              icmpOutTimeExcds, icmpOutParmProbs,
              icmpOutSrcQuenchs, icmpOutRedirects,
              icmpOutEchos, icmpOutEchoReps,
              icmpOutTimestamps, icmpOutTimestampReps,
              icmpOutAddrMasks, icmpOutAddrMaskReps }
  STATUS    current
  DESCRIPTION
          "The icmp group of objects providing ICMP statistics."
  ::= { ipMIBGroups 2 }

END

McCloghrie Standards Track [Page 17] RFC 2011 SNMPv2 MIB for IP November 1996

3. Acknowledgements

 This document contains a modified subset of RFC 1213.

4. References

 [1]  Information processing systems - Open Systems Interconnection -
      Specification of Abstract Syntax Notation One (ASN.1),
      International Organization for Standardization.  International
      Standard 8824, (December, 1987).
 [2]  McCloghrie, K., Editor, "Structure of Management Information
      for version 2 of the Simple Network Management Protocol
      (SNMPv2)", RFC 1902, Cisco Systems, January 1996.
 [3]  Postel, J., "Internet Protocol - DARPA Internet Program Protocol
      Specification", STD 5, RFC 791, DARPA, September 1981.
 [4]  Postel, J., "Internet Control Message Protocol - DARPA Internet
      Program Protocol Specification", STD 5, RFC 792, USC/Information
      Sciences Institute, September 1981.
 [5]  McCloghrie, K., and M. Rose, "Management Information Base for
      Network Management of TCP/IP-based internets: MIB-II", STD 17,
      RFC 1213, March 1991.
 [6]  Baker, F., "IP Forwarding Table MIB", RFC 1354, ACC, July 1992.

5. Security Considerations

 Security issues are not discussed in this memo.

6. Editor's Address

 Keith McCloghrie
 Cisco Systems, Inc.
 170 West Tasman Drive
 San Jose, CA  95134-1706
 US
 Phone: +1 408 526 5260
 EMail: kzm@cisco.com

McCloghrie Standards Track [Page 18]

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