With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cvpdnTunnelTotal
cvpdn Tunnel Total
1.3.6.1.4.1.9.10.24.1.1.1
The total number of VPDN tunnels that are currently active within this system.
Back to CISCO-VPDN-MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor cvpdnTunnelTotal on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.