ip-mib.txt

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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:  [phone]
             Email:  [e-mail]"
    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 }

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."
    ::= { 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
    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

            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

            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

            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 }
    ::= { ipNetToMediaTable 1 }