ipRouteTable

1.3.6.1.2.1.4.21.1.1

ipRouteDest

IpAddress

read-write

The destination IP address of this route. An

entry with a value of 0.0.0.0 is considered a

default route. Multiple routes to a single

destination can appear in the table, but access to

such multiple entries is dependent on the table-

access mechanisms defined by the network

management protocol in use.

The actually supported access is read-only.

1.3.6.1.2.1.4.21.1.2

ipRouteIfIndex

INTEGER

read-write

The index value which uniquely identifies the

local interface through which the next hop of this

route should be reached. The interface identified

by a particular value of this index is the same

interface as identified by the same value of

ifIndex.

The actually supported access is read-only.

1.3.6.1.2.1.4.21.1.3

ipRouteMetric1

INTEGER

read-write

The primary routing metric for this route. The

semantics of this metric are determined by the

routing-protocol specified in the route's

ipRouteProto value. If this metric is not used,

its value should be set to -1.

The actually supported access is read-only.

1.3.6.1.2.1.4.21.1.4

ipRouteMetric2

INTEGER

read-write

An alternate routing metric for this route. The

semantics of this metric are determined by the

routing-protocol specified in the route's

ipRouteProto value. If this metric is not used,

its value should be set to -1.

The actually supported access is read-only.

1.3.6.1.2.1.4.21.1.5

ipRouteMetric3

INTEGER

read-write

An alternate routing metric for this route. The

semantics of this metric are determined by the

routing-protocol specified in the route's

ipRouteProto value. If this metric is not used,

its value should be set to -1.

The actually supported access is read-only.

1.3.6.1.2.1.4.21.1.6

ipRouteMetric4

INTEGER

read-write

An alternate routing metric for this route. The

semantics of this metric are determined by the

routing-protocol specified in the route's

ipRouteProto value. If this metric is not used,

its value should be set to -1.

The actually supported access is read-only.

1.3.6.1.2.1.4.21.1.7

ipRouteNextHop

IpAddress

read-write

The IP address of the next hop of this route.

(In the case of a route bound to an interface

which is realized via a broadcast media, the value

of this field is the agent's IP address on that

interface.)

The actually supported access is read-only.

1.3.6.1.2.1.4.21.1.8

ipRouteType

INTEGER{other(1),invalid(2),direct(3),indirect(4)}

read-write

The type of route. Note that the values

direct(3) and indirect(4) refer to the notion of

direct and indirect routing in the IP

architecture.

Setting this object to the value invalid(2) has

the effect of invalidating the corresponding entry

in the ipRouteTable object. That is, it

effectively dissasociates the destination

identified with said entry from the route

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 ipRouteType object.

The actually supported access is read-only.

1.3.6.1.2.1.4.21.1.9

ipRouteProto

INTEGER{other(1),local(2),netmgmt(3),icmp(4),egp(5),ggp(6),hello(7),rip(8),is-is(9),es-is(10),ciscoIgrp(11),bbnSpfIgp(12),ospf(13),bgp(14)}

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.

1.3.6.1.2.1.4.21.1.10

ipRouteAge

INTEGER

read-write

The number of seconds since this route was last

updated or otherwise determined to be correct.

Note that no semantics of `too old' can be implied

except through knowledge of the routing protocol

by which the route was learned.

The actually supported access is read-only.

1.3.6.1.2.1.4.21.1.11

ipRouteMask

IpAddress

read-write

Indicate the mask to be logical-ANDed with the

destination address before being compared to the

value in the ipRouteDest field. For those systems

that do not support arbitrary subnet masks, an

agent constructs the value of the ipRouteMask by

determining whether the value of the correspondent

ipRouteDest field belong to a class-A, B, or C

network, and then using one of:

mask network

255.0.0.0 class-A

255.255.0.0 class-B

255.255.255.0 class-C

If the value of the ipRouteDest is 0.0.0.0 (a

default route), then the mask value is also

0.0.0.0. It should be noted that all IP routing

subsystems implicitly use this mechanism.

The actually supported access is read-only.

1.3.6.1.2.1.4.21.1.12

ipRouteMetric5

INTEGER

read-write

An alternate routing metric for this route. The

semantics of this metric are determined by the

routing-protocol specified in the route's

ipRouteProto value. If this metric is not used,

its value should be set to -1.

The actually supported access is read-only.

1.3.6.1.2.1.4.21.1.13

ipRouteInfo

OBJECT IDENTIFIER

read-only

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 ipRouteProto value. If

this information is not present, its value should

be set to the OBJECT IDENTIFIER { 0 0 }, which is

a syntatically valid object identifier, and any

conformant implementation of ASN.1 and BER must be

able to generate and recognize this value.

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