With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cipSecEndPtHistTable
Cisco IPSec Sec End Point History Table
1.3.6.1.4.1.9.9.171.1.4.3.2
The IPsec Phase-2 Tunnel Endpoint History Table. This table is implemented as a sliding window in which only the last n entries are maintained. The maximum number of entries is specified by the cipSecHistTableSize object.
Back to CISCO-IPSEC-FLOW-MONITOR-MIB MIB page.
IPHost Network monitor allows you to monitor cipSecEndPtHistTable 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.