With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ceipSecTunHistTermReason
Cisco Enhanced IP Sec Tunnel History Term Reason
1.3.6.1.4.1.9.9.432.1.2.2.1.2
The reason the IPsec Phase-2 Tunnel was terminated. Possible reasons include: 1 = other 2 = normal termination 3 = operator request 4 = peer delete request was received 5 = contact with peer was lost 6 = applicationInitiated (eg: L2TP requesting the termination) 7 = failure of extended authentication 8 = local failure occurred 9 = operator initiated check point request
Back to CISCO-ENHANCED-IPSEC-FLOW-MIB MIB page.
IPHost Network monitor allows you to monitor ceipSecTunHistTermReason on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.