With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cisIfTopoChangeFloodEnabled
Cisco IGMP Snooping If Topo Change Flood Enabled
1.3.6.1.4.1.9.9.263.1.5.1.1.1
When this object is set to 'true' multicast traffic will be flooded on the port for cisTopoChangeFloodQueryCount of Igmp General Queries upon receiving a Topology Change Notification (TCN) for the VLAN to which the port belongs.
Back to CISCO-IGMP-SNOOPING-MIB MIB page.
IPHost Network monitor allows you to monitor cisIfTopoChangeFloodEnabled 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.