Yamaha#show ip igmp snooping groups
IGMP Snooping Group Membership
Group source list: (R - Remote, S - Static)
Vlan Group/Source Address Interface Flags Uptime Expires Last Reporter Version
10 239.0.0.1 port1.2 R 00:00:13 00:00:41 192.168.100.2 V3
10 239.0.0.1 port1.4 R 00:00:02 00:00:48 192.168.100.4 V3