With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cikeFailIndex
Cisco IKE Fail Index
1.3.6.1.4.1.9.9.171.1.5.2.1.1.1
The IPsec Phase-1 Failure Table index. The value of the index is a number which begins at one and is incremented with each IPsec Phase-1 failure. The value of this object will wrap at 2,147,483,647.
Back to CISCO-IPSEC-FLOW-MONITOR-MIB MIB page.
IPHost Network monitor allows you to monitor cikeFailIndex 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.