All MIBs › USR-IP-ROUTING-MIB › usrIpRTHMask
usrIpRTHMask
Module: USR-IP-ROUTING-MIB
OID (symbolic): USR-IP-ROUTING-MIB::usrIpRTHMask
OID (numeric): 1.3.6.1.4.1.429.4.19.23.1.2
Node type: OBJECT-TYPE
Type: IpAddress
Access: read-write
Description: Indicate the mask to be logical-ANDed with the destination address before being compared to the value in the ipRTHDest field. For those systems that do not support arbitrary subnet masks, an agent constructs the value of the ipRTHMask by determining whether the value of the correspondent ipRTHDest 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 ipRTHDest 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.
What is usrIpRTHMask?
Reports the subnet mask ANDed with the destination address to match this route; on systems without arbitrary subnet mask support, the agent infers a classful mask (255.0.0.0/255.255.0.0/255.255.255.0) from the destination's class.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.429.4.19.23.1.2 snmpwalk -v2c -c public <target> USR-IP-ROUTING-MIB::usrIpRTHMask
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.429.4.19.23.1.2.1 snmpget -v2c -c public <target> USR-IP-ROUTING-MIB::usrIpRTHMask.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.429.4.19.23.1.2.1 a <value>
Start monitoring CommWorks (3Com/U.S. Robotics) remote-access platforms, IP routing (route-table capacity/RIP statistics status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the USR-IP-ROUTING-MIB::usrIpRTHMask OID value, configure state conditions and alerts, and monitor any CommWorks (3Com/U.S. Robotics) remote-access platforms, IP routing (route-table capacity/RIP statistics status) from a single console.
OID Breakdown
Upper-level ancestors (9 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.429 | usr | CHS-MIB |
| 1.3.6.1.4.1.429.4 | common | HDR2-MIB |
| 1.3.6.1.4.1.429.4.19 | usrIpRouting | USR-DEFINITIONS-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.429.4.19.23 | usrIpRTH | USR-IP-ROUTING-MIB |
| 1.3.6.1.4.1.429.4.19.23.1 | usrIpRTHEntry | USR-IP-ROUTING-MIB |
| 1.3.6.1.4.1.429.4.19.23.1.2 | usrIpRTHMask | USR-IP-ROUTING-MIB |