With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cikeTunHistInOctets
Cisco IKE Tunnel History In Octets
1.3.6.1.4.1.9.9.171.1.4.2.1.1.23
The total number of octets received by this IPsec Phase-1 IKE Tunnel.
Back to CISCO-IPSEC-FLOW-MONITOR-MIB MIB page.
IPHost Network monitor allows you to monitor cikeTunHistInOctets 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.