With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cipSecTunHistTermReason
Cisco IPSec Sec Tunnel History Term Reason
1.3.6.1.4.1.9.9.171.1.4.3.1.1.2
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 = local failure occurred 7 = operator initiated check point request
Back to CISCO-IPSEC-FLOW-MONITOR-MIB MIB page.
IPHost Network monitor allows you to monitor cipSecTunHistTermReason on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.