With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciscoIpMRouteTable
cisco Ip M Route Table
1.3.6.1.4.1.9.10.2.1.1.2
The (conceptual) table containing multicast routing information for IP datagrams sent by particular sources to the IP multicast groups known to this router. This table is augmented to the ipMRouteTable.
Back to CISCO-IPMROUTE-MIB MIB page.
IPHost Network monitor allows you to monitor ciscoIpMRouteTable 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.