With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ipMRouteBoundaryTable
ip M Route Boundary Table
1.3.6.1.2.1.83.1.1.5
The (conceptual) table listing the router's scoped multicast address boundaries.
Back to IPMROUTE-STD-MIB MIB page.
IPHost Network monitor allows you to monitor ipMRouteBoundaryTable on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.