ipRouteMask

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.

MIB

RFC1213-MIB

OID

.1.3.6.1.2.1.4.21.1.11

Type

column

Access

readwrite

Status

mandatory

Parent

ipRouteEntry