Enabling or disabling IGMP in a VLAN
IGMP must be enabled in VLANs on edge routers where multicast receivers (end points) are connected and will be requesting to join multicast groups.
Syntax:
no ip igmp
no vlan [vid] ip igmp
Enables or disables IGMP operation in the current VLAN. Configuring IGMP on the router is required in VLANs supporting edge router operation.