IGMP Details
Host:
sends Membership Report messages, if joined
waits 0-10 sec (def).
Hosts listen to other host reports
Only 1 host responds
Join messages (unsolicited Membership Report) to group
address (e.g. 224.10.8.5)
Leave messages to All Routers (224.0.0.2)
IGMPv1/2 reports group membership ONLY – No sources