With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cvpdnTunnelRemoteTunnelId
cvpdn Tunnel Remote Tunnel Id
1.3.6.1.4.1.9.10.24.1.2.1.1.2
The remote Tunnel ID of an active VPDN tunnel. If it is the instigator of the tunnel, the ID is the NAS/LAC tunnel ID, otherwise it is the HGW/LNS tunnel ID.
Back to CISCO-VPDN-MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor cvpdnTunnelRemoteTunnelId on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.