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MIB Reference

S7700 and S9700 V200R011C10

This document provides the function overview, relationships between tables, description of single objects, description of MIB tables, and description of alarm objects.
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IP-FORWARD-MIB

IP-FORWARD-MIB

Functions Overview

The IP-FORWARD-MIB is defined by the RFC 1354 and the RFC 2096 that is the enhanced version of the former. The RFC 2096 stipulates the classless inter-domain routing (CIDR).

Root directory:

iso(1).org(3).dod(6).internet(1).mgmt(2).mib-2(1).ip(4).ipForward (24)

Relationships Between Tables

None.

Description of Single Objects

ipCidrRouteNumber

OID

Object Name

Syntax

Max Access

Description

Implemented Specifications

1.3.6.1.2.1.4.24.3

ipCidrRouteNumber

Gauge32

Read-only

The value of this object identifies the number of active IPv4 public routes.

This object is implemented as defined in the corresponding MIB files.

inetCidrRouteNumber

OID

Object Name

Syntax

Max Access

Description

Implemented Specifications

1.3.6.1.2.1.4.24.6

inetCidrRouteNumber

Gauge32

Read-only

The value of this object identifies the total number of active IPv4 and IPv6 public routes.

This object is implemented as defined in the corresponding MIB file.

inetCidrRouteDiscards

OID

Object Name

Syntax

Max Access

Description

Implemented Specifications

1.3.6.1.2.1.4.24.8

inetCidrRouteDiscards

Counter32

Read-only

The value of this object identifies the number of valid route entries discarded from the inetCidrRouteTable.

Currently, the return value 0 is supported only.

Description of MIB Tables

ipCidrRouteTable

This table contains information of the CIDR route. The value of this table is filled after there is route in the routing table.

The index of this table is ipCidrRouteDest, ipCidrRouteMask, ipCidrRouteTos and ipCidrRouteNextHop.

OID

Object Name

Syntax

Max Access

Description

Implemented Specifications

1.3.6.1.2.1.4.24.4.1.1

ipCidrRouteDest

IpAddress

Read-only

Indicates the destination IP address.

This object may not take a Multicast (Class D) address value.

Any assignment (implicit or otherwise) of an instance of this object to a value x must be rejected if the bitwise logical-AND of x with the value of the corresponding instance of the ipCidrRouteMask object is not equal to x.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.4.24.4.1.2

ipCidrRouteMask

IpAddress

Read-only

Indicate the mask to be logical-ANDed with the destination address before being compared to the value in the ipCidrRouteDest field.

For those systems that do not support arbitrary subnet masks, an agent constructs the value of the ipCidrRouteMask by reference to the IP Address Class.

Any assignment (implicit or otherwise) of an instance of this object to a value x must be rejected if the bitwise logical-AND of x with the value of the corresponding instance of the ipCidrRouteDest object is not equal to ipCidrRouteDest.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.4.24.4.1.3

ipCidrRouteTos

Integer32(0..2147483647)

Read-only

The policy specifier is the IP ToS. Field Zero indicates the default path if no more specific policy applies.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.4.24.4.1.4

ipCidrRouteNextHop

IpAddress

Read-only

The next hop address of route. If there is no next hop address, the address is 0.0.0.0.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.4.24.4.1.5

ipCidrRouteIfIndex

Integer32

Read-create

The ifIndex value which identifies the local interface through which the next hop of this route should be reached.

Currently, the maximum access is read-only.

1.3.6.1.2.1.4.24.4.1.6

ipCidrRouteType

INTEGER{other(1),reject(2),local(3),remote(4)}

Read-create

Indicates the type of a route:

  • other(1)
  • reject(2): a route which, if matched, discards the message as unreachable. This is used in some protocols as a means of correctly aggregating routes.
  • local(3): a route for which the next hop is the final destination
  • remote(4): a route for which the next hop is not the final destination

Routes which do not result in traffic forwarding or rejection should not be displayed even if the implementation keeps them stored internally.

Currently, the maximum access is read-only.

1.3.6.1.2.1.4.24.4.1.7

ipCidrRouteProto

INTEGER{other(1),local(2),netmgmt(3),icmp(4),egp(5),ggp(6),hello(7),rip(8),isIs(9),esIs(10),ciscoIgrp(11),bbnSpfIgp(12),ospf(13),bgp(14),idpr(15),ciscoEigrp(16)}

Read-only

The routing mechanism via which this route was learned.

Inclusion of values for gateway routing protocols is not intended to imply that hosts should support those protocols.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.4.24.4.1.8

ipCidrRouteAge

Integer32

Read-only

The number of seconds since this route was last updated or otherwise determined to be correct.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.4.24.4.1.9

ipCidrRouteInfo

OBJECT IDENTIFIER

Read-create

A reference to MIB definitions specific to the particular routing protocol which is responsible for this route, as determined by the value specified in the route's ipCidrRouteProto value.

If this information is not present, its value should be set to the OBJECT IDENTIFIER 0 0, which is a syntactically valid object identifier, and any implementation conforming to ASN.1 and the

Basic Encoding Rules must be able to generate and recognize this value.

Currently, the maximum access is read-only.

1.3.6.1.2.1.4.24.4.1.10

ipCidrRouteNextHopAS

Integer32

Read-create

The Autonomous System Number of the Next Hop.

The semantics of this object are determined by the routing-protocol specified in the route's ipCidrRouteProto value.

When this object is unknown or not relevant, its value should be set to zero.

Currently, the maximum access is read-only.

1.3.6.1.2.1.4.24.4.1.11

ipCidrRouteMetric1

Integer32

Read-create

The primary routing metric for this route.

The semantics of this metric are determined by the routing-protocol specified in the route's ipCidrRouteProto value.

If this metric is not used, its value should be set to -1.

Currently, the maximum access is read-only.

1.3.6.1.2.1.4.24.4.1.12

ipCidrRouteMetric2

Integer32

Read-create

An alternate routing metric for this route.

The semantics of this metric are determined by the routing-protocol specified in the route's ipCidrRouteProto value.

If this metric is not used, its value should be set to -1.

Currently, the maximum access is read-only.

1.3.6.1.2.1.4.24.4.1.13

ipCidrRouteMetric3

Integer32

Read-create

An alternate routing metric for this route.

The semantics of this metric are determined by the routing-protocol specified in the route's ipCidrRouteProto value.

If this metric is not used, its value should be set to -1.

Currently, the maximum access is read-only.

1.3.6.1.2.1.4.24.4.1.14

ipCidrRouteMetric4

Integer32

Read-create

An alternate routing metric for this route.

The semantics of this metric are determined by the routing-protocol specified in the route's ipCidrRouteProto value.

If this metric is not used, its value should be set to -1.

Currently, the maximum access is read-only.

1.3.6.1.2.1.4.24.4.1.15

ipCidrRouteMetric5

Integer32

Read-create

An alternate routing metric for this route.

The semantics of this metric are determined by the routing-protocol specified in the route's ipCidrRouteProto value.

If this metric is not used, its value should be set to -1.

Currently, the maximum access is read-only.

1.3.6.1.2.1.4.24.4.1.16

ipCidrRouteStatus

RowStatus

Read-create

The row status variable, used according to row installation and removal conventions.

Currently, the maximum access is read-only.

Creation Restriction

The entries in this table cannot be created.

Modification Restriction

The entries in this table cannot be modified.

Deletion Restriction

The entries in this table cannot be deleted.

Access Restriction

This table begins to have values only after there is route in the routing table.

inetCidrRouteTable

This table is used to query information about active routes and created static routes of the public network.

The index of this table is inetCidrRouteDestType; inetCidrRouteDest; inetCidrRoutePfxLen; inetCidrRoutePolicy; inetCidrRouteNextHopType; inetCidrRouteNextHop.

OID

Object Name

Syntax

Max Access

Description

Implemented Specifications

1.3.6.1.2.1.4.24.7.1.1

inetCidrRouteDestType

InetAddressType

Not-accessible

This object indicates the type of the destination address, either IPv4 or IPv6.

This object is implemented as defined in the corresponding MIB file.

1.3.6.1.2.1.4.24.7.1.2

inetCidrRouteDest

InetAddress

Not-accessible

This object indicates the destination address of a route.

This object is implemented as defined in the corresponding MIB file.

1.3.6.1.2.1.4.24.7.1.3

inetCidrRoutePfxLen

InetAddressPrefixLength

Not-accessible

This object indicates the mask length of the destination address.

This object is implemented as defined in the corresponding MIB file.

1.3.6.1.2.1.4.24.7.1.4

inetCidrRoutePolicy

Object Identifier

Not-accessible

This object is an opaque object without any defined semantics.

Its purpose is to serve as an additional index that may delineate between multiple entries to the same destination.

This object is not supported by protocols currently, and the return value is the default value 2.0.0.

1.3.6.1.2.1.4.24.7.1.5

inetCidrRouteNextHopType

InetAddressType

Not-accessible

This object indicates the type of the next hop address, either IPv4 or IPv6.

This object is implemented as defined in the corresponding MIB file.

1.3.6.1.2.1.4.24.7.1.6

inetCidrRouteNextHop

InetAddress

Not-accessible

This object indicates the next hop of the route.

This object is implemented as defined in the corresponding MIB file.

1.3.6.1.2.1.4.24.7.1.7

inetCidrRouteIfIndex

InterfaceIndexOrZero

Read-create

This object indicates the outbound interface index of the route. The outbound interface refers to the interface connecting the local device to the next hop.

This object is implemented as defined in the corresponding MIB file.

1.3.6.1.2.1.4.24.7.1.8

inetCidrRouteType

INTEGER{other(1),reject(2),local(3),remote(4),blackhole(5)}

Read-create

Indicates the type of a route:

  • other(1)
  • reject(2): a route which, if matched, discards the message as unreachable.
  • local(3): a route for which the next hop is the final destination
  • remote(4): a route for which the next hop is not the final destination.

This object is implemented as defined in the corresponding MIB file.

1.3.6.1.2.1.4.24.7.1.9

inetCidrRouteProto

IANAipRouteProtocol

Read-only

This object indicates a routing protocol.

This object is implemented as defined in the corresponding MIB file.

1.3.6.1.2.1.4.24.7.1.10

inetCidrRouteAge

Gauge32

Read-only

This object indicates the number of seconds since this route was last updated or otherwise determined to be correct.

This object is implemented as defined in the corresponding MIB file.

1.3.6.1.2.1.4.24.7.1.11

inetCidrRouteNextHopAS

InetAutonomousSystemNumber

Read-create

This object indicates the next hop AS number of a BGP route.

The maximum access to this object is read-only.

4-byte AS numbers range from 0 to 4294967295. When an AS number is greater than 2147483647, it is displayed as a negative value.

1.3.6.1.2.1.4.24.7.1.12

inetCidrRouteMetric1

Integer32

Read-create

This object indicates the metric for the route.

This object is implemented as defined in the corresponding MIB file.

1.3.6.1.2.1.4.24.7.1.13

inetCidrRouteMetric2

Integer32

Read-create

This object indicates the metric for the route.

The maximum access to this object is read-only.

This object is not supported by protocols currently. The return value is the default value -1.

1.3.6.1.2.1.4.24.7.1.14

inetCidrRouteMetric3

Integer32

Read-create

This object indicates the metric for the route.

The maximum access to this object is read-only.

This object is not supported by protocols currently. The return value is the default value -1.

1.3.6.1.2.1.4.24.7.1.15

inetCidrRouteMetric4

Integer32

Read-create

This object indicates the metric for the route.

The maximum access to this object is read-only.

This object is not supported by protocols currently. The return value is the default value -1.

1.3.6.1.2.1.4.24.7.1.16

inetCidrRouteMetric5

Integer32

Read-create

This object indicates the metric for the route.

The maximum access to this object is read-only.

This object is not supported by protocols currently. The return value is the default value -1.

1.3.6.1.2.1.4.24.7.1.17

inetCidrRouteStatus

RowStatus

Read-create

This object indicates the row status variable, used according to row installation and removal conventions.

This object is implemented as defined in the corresponding MIB file.

Creation Restriction

Only static routes of the public network can be created.

Modification Restriction

Only static routes of the public network can be modified.

Deletion Restriction

Only static routes of the public network can be deleted.

Access Restriction

The entries in this table can be read only when there are routes in the routing table.

Description of Alarm Objects

This MIB does not contain alarm objects.

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Updated: 2019-10-17

Document ID: EDOC1000178290

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