All MIBs › OPENBSD-PF-MIB › pfTimeoutTcpFirst
pfTimeoutTcpFirst
Module: OPENBSD-PF-MIB
OID (symbolic): OPENBSD-PF-MIB::pfTimeoutTcpFirst
OID (numeric): 1.3.6.1.4.1.30155.1.7.1
Node type: OBJECT-TYPE
Type: Integer32
Access: read-only
Description: State after receiving the first TCP packet in a new connection.
What is pfTimeoutTcpFirst?
The configured timeout (in seconds) applied to a TCP state right after the first packet of a new connection is seen, before any response arrives. Lowering it makes pf reclaim half-open connection states faster, which is useful for mitigating SYN-flood-style resource exhaustion.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.30155.1.7.1 snmpwalk -v2c -c public <target> OPENBSD-PF-MIB::pfTimeoutTcpFirst
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.30155.1.7.1.1 snmpget -v2c -c public <target> OPENBSD-PF-MIB::pfTimeoutTcpFirst.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 |
|---|---|---|
| 1.3.6.1.4.1.30155.1.7 | pfTimeouts | OPENBSD-PF-MIB |
| 1.3.6.1.4.1.30155.1.7.1 | pfTimeoutTcpFirst | OPENBSD-PF-MIB |