MIB Reference Manual (Version 3.0)

1-36 MIB Reference Manual Version 3.0
MIB-II Object Types
1
ipRouteMask
Syntax IpAddress
Access Read-write
Status Mandatory
Description 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 the following:
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.
ipRouteMetric5
Syntax Integer
Access Read-write
Status Mandatory
Description An alternate routing metric for this route.
Note: 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.
ipRouteInfo
Syntax Object Identifier
Access Read-only
Status Mandatory
Description 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
syntactically valid object identifier, and any conferment implementation of ASN.1 and BER must
be able to generate and recognize this value.