With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
dsgIfTunnelTable
dsg If Tunnel Table
The DSG Tunnel Table contains group(s) of tunnel(s). Each tunnel is associated to the destination MAC address.
Back to DSG-IF-MIB MIB page.
IPHost Network monitor allows you to monitor dsgIfTunnelTable 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.