IPsecT1-MIB :: ipsecFailReason

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › IPsecT1-MIB › ipsecFailReason

ipsecFailReason

Module: IPsecT1-MIB

OID (symbolic): IPsecT1-MIB::ipsecFailReason

OID (numeric): 1.3.6.1.4.1.2.6.168.1.1.1.1.5.3.1.1.2

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: The reason for the failure. Possible reasons include: 1 = other 2 = internal error occurred 3 = peer encoding error 4 = proposal failure 5 = protocol use failure 6 = non-existent security association 7 = decryption failure 8 = encryption failure 9 = inbound authentication failure 10 = outbound authentication failure 11 = compression failure 12 = system capacity failure 13 = peer delete request was received 14 = contact with peer was lost 15 = sequence number rolled over 16 = operator requested termination.

What is ipsecFailReason?

Why this Phase-2 operation failed, as one of 16 codes such as internalError (2), proposalFailure (4), nonExistentSa (6), decryptFailure (7), inAuthFailure (9), outAuthFailure (10), sysCapExceeded (12) or peerLost (14). Read it first when an IPsec tunnel breaks: 4 usually means a proposal or policy mismatch and 6 an SA that one side has forgotten.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.2.6.168.1.1.1.1.5.3.1.1.2
snmpwalk -v2c -c public <target> IPsecT1-MIB::ipsecFailReason

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.2.6.168.1.1.1.1.5.3.1.1.2.1
snmpget -v2c -c public <target> IPsecT1-MIB::ipsecFailReason.1

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OID Breakdown

Upper-level ancestors (8 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.2ibmATM-ADAPTER-MIB
1.3.6.1.4.1.2.6ibmProdATM-ADAPTER-MIB
Numeric OIDNameModule
1.3.6.1.4.1.2.6.168.1.1.1ipsecMIBIPsecT1-MIB
1.3.6.1.4.1.2.6.168.1.1.1.1ipsecMIBObjectsIPsecT1-MIB
1.3.6.1.4.1.2.6.168.1.1.1.1.5ipsecFailuresIPsecT1-MIB
1.3.6.1.4.1.2.6.168.1.1.1.1.5.3ipsecFailPhaseTwoIPsecT1-MIB
1.3.6.1.4.1.2.6.168.1.1.1.1.5.3.1ipsecFailTableIPsecT1-MIB
1.3.6.1.4.1.2.6.168.1.1.1.1.5.3.1.1ipsecFailEntryIPsecT1-MIB
1.3.6.1.4.1.2.6.168.1.1.1.1.5.3.1.1.2ipsecFailReasonIPsecT1-MIB