All MIBs › TUNNEL-MIB › tunnelIfHopLimit
tunnelIfHopLimit
Module: TUNNEL-MIB
OID (symbolic): TUNNEL-MIB::tunnelIfHopLimit
OID (numeric): 1.3.6.1.2.1.10.131.1.1.1.1.4
Node type: OBJECT-TYPE
Type: Integer32
Access: read-write
Description: The IPv4 TTL or IPv6 Hop Limit to use in the outer IP header. A value of 0 indicates that the value is copied from the payload's header.
What is tunnelIfHopLimit?
This read-write value sets the IPv4 TTL or IPv6 Hop Limit to place in the outer IP header of packets sent through this tunnel; a value of 0 means the value is instead copied from the encapsulated payload's own header. Admins tune it to control how far tunneled packets can travel before being discarded, similar to a normal TTL, or to preserve the inner packet's own hop limit by leaving it at 0. For example, setting this to 0 on a GRE tunnel lets the encapsulated packet's original TTL pass through into the outer header rather than the tunnel imposing its own fixed value.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.10.131.1.1.1.1.4 snmpwalk -v2c -c public <target> TUNNEL-MIB::tunnelIfHopLimit
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.10.131.1.1.1.1.4.1 snmpget -v2c -c public <target> TUNNEL-MIB::tunnelIfHopLimit.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.2.1.10.131.1.1.1.1.4.1 i <value>
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OID Breakdown
Upper-level ancestors (7 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 |
| 1.3.6.1.2.1.10 | transmission | CHECKPOINT-MIB-2 |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.10.131 | tunnelMIB | TUNNEL-MIB |
| 1.3.6.1.2.1.10.131.1 | tunnelMIBObjects | TUNNEL-MIB |
| 1.3.6.1.2.1.10.131.1.1 | tunnel | TUNNEL-MIB |
| 1.3.6.1.2.1.10.131.1.1.1 | tunnelIfTable | TUNNEL-MIB |
| 1.3.6.1.2.1.10.131.1.1.1.1 | tunnelIfEntry | TUNNEL-MIB |
| 1.3.6.1.2.1.10.131.1.1.1.1.4 | tunnelIfHopLimit | TUNNEL-MIB |