With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cikeTunHistLocalName
Cisco IKE Tunnel History Local Name
1.3.6.1.4.1.9.9.171.1.4.2.1.1.10
The DNS name of the local IP address for the IPsec Phase-1 IKE Tunnel. If the DNS name associated with the local tunnel endpoint is not known, then the value of this object will be a NULL string.
Back to CISCO-IPSEC-FLOW-MONITOR-MIB MIB page.
IPHost Network monitor allows you to monitor cikeTunHistLocalName on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.