SYS-MIB :: ipAdEntNetMask

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › SYS-MIB › ipAdEntNetMask

ipAdEntNetMask

Module: SYS-MIB

OID (symbolic): SYS-MIB::ipAdEntNetMask

OID (numeric): 1.3.6.1.4.1.1978.2.18.3.20.1.3

Node type: OBJECT-TYPE

Type: IpAddress

Access: read-write

Description: The subnet mask associated with the IP address of this entry. The value of the mask is an IP address with all the network bits set to 1 and all the hosts bits set to 0.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1978.2.18.3.20.1.3
snmpwalk -v2c -c public <target> SYS-MIB::ipAdEntNetMask

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.1978.2.18.3.20.1.3.1
snmpget -v2c -c public <target> SYS-MIB::ipAdEntNetMask.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.1978.2.18.3.20.1.3.1 a <value>

Start monitoring Northrop Grumman-Canada, Ltd. Tiger system equipment (system identity/interface status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the SYS-MIB::ipAdEntNetMask OID value, configure state conditions and alerts, and monitor any Northrop Grumman-Canada, Ltd. Tiger system equipment (system identity/interface status) from a single console.

OID Breakdown

Upper-level ancestors (8 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
1.3.6.1.4.1.1978ngcanALC-MIB
1.3.6.1.4.1.1978.2tigerALC-MIB
Numeric OIDNameModule
1.3.6.1.4.1.1978.2.18sysMIBSYS-MIB
1.3.6.1.4.1.1978.2.18.3ipSYS-MIB
1.3.6.1.4.1.1978.2.18.3.20ipAddrTableSYS-MIB
1.3.6.1.4.1.1978.2.18.3.20.1ipAddrEntrySYS-MIB
1.3.6.1.4.1.1978.2.18.3.20.1.3ipAdEntNetMaskSYS-MIB