All MIBs › OPENBSD-PF-MIB › pfCntIpOption
pfCntIpOption
Module: OPENBSD-PF-MIB
OID (symbolic): OPENBSD-PF-MIB::pfCntIpOption
OID (numeric): 1.3.6.1.4.1.30155.1.2.9
Node type: OBJECT-TYPE
Type: Counter64
Access: read-only
Description: The number of packets that were dropped due to having options set in the IP header.
What is pfCntIpOption?
Counts packets dropped because they carried options set in the IP header, which pf commonly blocks by default as a security precaution (e.g., source-routing options). A steady rate here is normal background noise from scanners or misconfigured hosts.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.30155.1.2.9 snmpwalk -v2c -c public <target> OPENBSD-PF-MIB::pfCntIpOption
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.30155.1.2.9.1 snmpget -v2c -c public <target> OPENBSD-PF-MIB::pfCntIpOption.1
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OID Breakdown
Upper-level ancestors (8 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 |
| 1.3.6.1.4.1.30155 | openBSD | OPENBSD-BASE-MIB |
| 1.3.6.1.4.1.30155.1 | pfMIBObjects | OPENBSD-BASE-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.30155.1.2 | pfCounters | OPENBSD-PF-MIB |
| 1.3.6.1.4.1.30155.1.2.9 | pfCntIpOption | OPENBSD-PF-MIB |