With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
dsgIfClassRowStatus
dsg If Class Row Status
The status of the row. A value of active(1) indicates that this classifier is applied to this tunnel. A value of notInService(2) indicates that matching of the packets are ignored and this classifier parameters will not be included in the DCD message.
Back to DSG-IF-MIB MIB page.
IPHost Network monitor allows you to monitor dsgIfClassRowStatus 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.