With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ipMRouteNextHopGroup
ip M Route Next Hop Group
1.3.6.1.2.1.83.1.1.3.1.1
The IP multicast group for which this entry specifies a next-hop on an outgoing interface.
Back to IPMROUTE-STD-MIB MIB page.
IPHost Network monitor allows you to monitor ipMRouteNextHopGroup on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.