With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cipSecFailReason
Cisco IPSec Sec Fail Reason
1.3.6.1.4.1.9.9.171.1.5.3.1.1.2
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.
Back to CISCO-IPSEC-FLOW-MONITOR-MIB MIB page.
IPHost Network monitor allows you to monitor cipSecFailReason on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.