COPPER-MOUNTAIN-NETWORKS-DSL-MIB :: cmDHCPNetMask

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCOPPER-MOUNTAIN-NETWORKS-DSL-MIBcmDHCPNetMask

cmDHCPNetMask

Module: COPPER-MOUNTAIN-NETWORKS-DSL-MIB

OID (symbolic): COPPER-MOUNTAIN-NETWORKS-DSL-MIB::cmDHCPNetMask

OID (numeric): 1.3.6.1.4.1.1996.20.19.1.1.4

Node type: OBJECT-TYPE

Type: IpAddress

Access: read-write

Description: This is the NetMask that will be sent to the CPE when a DHCP request is received over the DSL link.

Default: 0.0.0.0

What is cmDHCPNetMask?

This read-write IpAddress, defaulting to 0.0.0.0, is the subnet mask sent to the CPE alongside the DHCP-assigned address on this DSL link. An admin sets it to ensure the CPE gets the correctly sized subnet for that line. For example, an admin sets cmDHCPNetMask to 255.255.255.0 to match the /24 subnet configured via cmDHCPIpAddress.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1996.20.19.1.1.4
snmpwalk -v2c -c public <target> COPPER-MOUNTAIN-NETWORKS-DSL-MIB::cmDHCPNetMask

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.1996.20.19.1.1.4.1
snmpget -v2c -c public <target> COPPER-MOUNTAIN-NETWORKS-DSL-MIB::cmDHCPNetMask.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.1996.20.19.1.1.4.1 a <value>

Start monitoring Copper Mountain Networks DSL access equipment (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the COPPER-MOUNTAIN-NETWORKS-DSL-MIB::cmDHCPNetMask OID value, configure state conditions and alerts, and monitor any Copper Mountain Networks DSL access equipment (legacy) from a single console.

OID Breakdown

Upper-level ancestors (6 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
Numeric OIDNameModule
1.3.6.1.4.1.1996coppermountainCOPPER-MOUNTAIN-NETWORKS-DSL-MIB
1.3.6.1.4.1.1996.20cmCE200COPPER-MOUNTAIN-NETWORKS-DSL-MIB
1.3.6.1.4.1.1996.20.19cmDHCPCOPPER-MOUNTAIN-NETWORKS-DSL-MIB
1.3.6.1.4.1.1996.20.19.1cmDHCPTableCOPPER-MOUNTAIN-NETWORKS-DSL-MIB
1.3.6.1.4.1.1996.20.19.1.1cmDHCPEntryCOPPER-MOUNTAIN-NETWORKS-DSL-MIB
1.3.6.1.4.1.1996.20.19.1.1.4cmDHCPNetMaskCOPPER-MOUNTAIN-NETWORKS-DSL-MIB