With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ipMRouteEntry
ip M Route Entry
1.3.6.1.3.60.1.1.2.1
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 IPMROUTE-MIB MIB page.
IPHost Network monitor allows you to monitor ipMRouteEntry on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.
