CME-MIB :: vlanCMMIPv4SubnetRouteMask3

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCME-MIBvlanCMMIPv4SubnetRouteMask3

vlanCMMIPv4SubnetRouteMask3

Module: CME-MIB

OID (symbolic): CME-MIB::vlanCMMIPv4SubnetRouteMask3

OID (numeric): 1.3.6.1.4.1.2.3.51.2.4.9.1.20.20.1.56

Node type: OBJECT-TYPE

Type: IpAddress

Access: read-write

Description: This object sets the IPv4 subnet route mask 3 for this VLAN entry.

The entry with the vlanCMMIndex value of 1 (default VLAN entry) will always have this object set to 0.0.0.0.

For all other VLAN entries, this object may be set to any valid subnet mask.

For a change of this object to take effect, the object, vlanCMMState, must be set to enable(1) if the vlanCMMState is currently disable(0), or set to restart(2) if the vlanCMMState is currently enable(1).

What is vlanCMMIPv4SubnetRouteMask3?

This writable object supplies the subnet mask paired with the third static IPv4 subnet route (vlanCMMIPv4SubnetRoute3), and is 0.0.0.0 on the default VLAN entry. Getting this mask right is what determines the actual boundary of the third routed subnet, so a mismatch here would misroute or block traffic intended for it. An admin who configured route 3 as 10.0.9.0 would set this mask to 255.255.255.0, then enable vlanCMMState(1) for the third route to become active.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.2.3.51.2.4.9.1.20.20.1.56
snmpwalk -v2c -c public <target> CME-MIB::vlanCMMIPv4SubnetRouteMask3

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.2.3.51.2.4.9.1.20.20.1.56.1
snmpget -v2c -c public <target> CME-MIB::vlanCMMIPv4SubnetRouteMask3.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.2.3.51.2.4.9.1.20.20.1.56.1 a <value>

Start monitoring Cisco Communications Manager Express (CME) router/gateway with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CME-MIB::vlanCMMIPv4SubnetRouteMask3 OID value, configure state conditions and alerts, and monitor any Cisco Communications Manager Express (CME) router/gateway from a single console.

OID Breakdown

Upper-level ancestors (13 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.2ibmBLADE-MIB
1.3.6.1.4.1.2.3ibmAgentsBLADE-MIB
1.3.6.1.4.1.2.3.51netfinitySupportProcessorAgentBLADE-MIB
1.3.6.1.4.1.2.3.51.2bladeCenterSnmpMIBBLADE-MIB
1.3.6.1.4.1.2.3.51.2.4configureSPBLADE-MIB
1.3.6.1.4.1.2.3.51.2.4.9networkConfigurationBLADE-MIB
1.3.6.1.4.1.2.3.51.2.4.9.1networkInterfacesBLADE-MIB
Numeric OIDNameModule
1.3.6.1.4.1.2.3.51.2.4.9.1.20vlanConfigureCME-MIB
1.3.6.1.4.1.2.3.51.2.4.9.1.20.20vlanCMMTableCME-MIB
1.3.6.1.4.1.2.3.51.2.4.9.1.20.20.1vlanCMMEntryCME-MIB
1.3.6.1.4.1.2.3.51.2.4.9.1.20.20.1.56vlanCMMIPv4SubnetRouteMask3CME-MIB