With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciscoIpMRouteEntry
cisco Ip M Route Entry
1.3.6.1.4.1.9.10.2.1.1.2.1
An entry (conceptual row) containing the multicast routing information for IP datagrams from a particular source and addressed to a particular IP multicast group address.
Back to CISCO-IPMROUTE-MIB MIB page.
IPHost Network monitor allows you to monitor ciscoIpMRouteEntry on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.