Default IGMP Version

IGMPv3 is available for RUCKUS devices; however, these routers are shipped with IGMPv2-enabled. You must enable IGMPv3 globally or per interface.

Also, you can specify what version of IGMP you want to run on a device globally, on each interface (physical port or virtual routing interface), and on each physical port within a virtual routing interface. If you do not specify an IGMP version, IGMPv2 will be used.