cmIpConfigSubnetMask

The device's administrative IP subnet mask.  The device
may automatically discover a value for this object using
the BootStrap protocol (BOOTP).  The object value is also
duplicated in the MIB-II ipAddrTable.
          
This object is writable only if the value of
ipConfigMethod is set to manual(1).
          
A write to this value will take effect immediately.
The default value is 0.0.0.0, or no subnet mask.

MIB

CISCO-SIBU-MANAGERS-MIB

OID

.1.3.6.1.4.1.9.10.46.1.1.3

Type

scalar

Access

readwrite

Status

current

Parent

cmIpConfig