All MIBs › CHECKPOINT-MIB-2 › ipAdEntNetMask
ipAdEntNetMask
Module: CHECKPOINT-MIB-2
OID (symbolic): CHECKPOINT-MIB-2::ipAdEntNetMask
OID (numeric): 1.3.6.1.2.1.4.20.1.3
Node type: OBJECT-TYPE
Type: IpAddress
Access: read-only
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.
What is ipAdEntNetMask?
The subnet mask associated with the IP address in the same table row, expressed as an IP address with network bits set to 1 and host bits set to 0. This is what an admin cross-checks against the intended subnet design when troubleshooting connectivity; a mask that doesn't match what was configured in the management console indicates the running config on the gateway has drifted from what's expected. Example: ipAdEntNetMask reading 255.255.255.128 when the design called for a /24 would explain why half the expected hosts on that segment are unreachable from this gateway.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.4.20.1.3 snmpwalk -v2c -c public <target> CHECKPOINT-MIB-2::ipAdEntNetMask
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.4.20.1.3.1 snmpget -v2c -c public <target> CHECKPOINT-MIB-2::ipAdEntNetMask.1
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OID Breakdown
Upper-level ancestors (6 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 |
| 1.3.6.1.2 | mgmt | AXON-MIB |
| 1.3.6.1.2.1 | mib_2 | AXON-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.4 | ip | CHECKPOINT-MIB-2 |
| 1.3.6.1.2.1.4.20 | ipAddrTable | CHECKPOINT-MIB-2 |
| 1.3.6.1.2.1.4.20.1 | ipAddrEntry | CHECKPOINT-MIB-2 |
| 1.3.6.1.2.1.4.20.1.3 | ipAdEntNetMask | CHECKPOINT-MIB-2 |