All MIBs › OPENBSD-PF-MIB › pfsyncPktDiscardsForBadTtl
pfsyncPktDiscardsForBadTtl
Module: OPENBSD-PF-MIB
OID (symbolic): OPENBSD-PF-MIB::pfsyncPktDiscardsForBadTtl
OID (numeric): 1.3.6.1.4.1.30155.1.11.4
Node type: OBJECT-TYPE
Type: Counter64
Access: read-only
Description: Number of pfsync packets discarded due to having a TTL less than 255.
What is pfsyncPktDiscardsForBadTtl?
Counts pfsync packets discarded for having a TTL less than 255, a security check since pfsync traffic is expected to stay on a directly-connected link. A nonzero count can indicate pfsync packets being routed through extra hops, which shouldn't happen in a correct failover setup.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.30155.1.11.4 snmpwalk -v2c -c public <target> OPENBSD-PF-MIB::pfsyncPktDiscardsForBadTtl
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.30155.1.11.4.1 snmpget -v2c -c public <target> OPENBSD-PF-MIB::pfsyncPktDiscardsForBadTtl.1
SNMPv3 example:
snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> pfsyncPktDiscardsForBadTtl.1
Start monitoring OpenBSD firewall/router host (pf packet filter statistics) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the OPENBSD-PF-MIB::pfsyncPktDiscardsForBadTtl OID value, configure state conditions and alerts, and monitor any OpenBSD firewall/router host (pf packet filter statistics) from a single console.
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 |
|---|---|---|
| 1.3.6.1.4.1.30155.1.11 | pfsyncStats | OPENBSD-PF-MIB |
| 1.3.6.1.4.1.30155.1.11.4 | pfsyncPktDiscardsForBadTtl | OPENBSD-PF-MIB |