3 questions on "Introduction to IP Multicasting - IGMPv1 and IGMPv2 Interoperability"
IGMPv2 routers send queries with MRT with a value of nonzero
IGMPv2 hosts send Report messages type 0x16
IGMPv3 hosts send Report messages type 0x22
If an IGMPv2 host send a leave message, an IGMPv2 router conclude that there no more recievers because IGMPv1 host does not understand a group specific member query message.
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