With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
dsgIfDownEnableDCD
dsg If Down Enable DCD
Used to enable or disable DCD messages to be sent on this downstream channel. The value is always true(1) for those downstreams that contains one or many DSG Tunnels.
Back to DSG-IF-MIB MIB page.
IPHost Network monitor allows you to monitor dsgIfDownEnableDCD 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.