--> IGMPv3 is an enhancement to IGMPv2.
--> In IGMPv2 receiver can specify only group address from any source address to join the multicast group.
--> In the IGMPv3 receiver can specify the group address as well as the source address of the group from which it wants to receive the multicast traffic.
--> IGMPv3 is backward capable of IGMPv1/IGMPv2.
--> Host uses different multicast address 224.0.0.22 to send membership reports/join messages to the router.
--> IGMPv3 removes the one membership report per group of IGMPv1/v2.
--> In IGMPv3, hosts can use only one membership report (Group Membership Report) to join more than one multicast group.
--> In IGMPv3, receivers can also use membership reports to leave the multicast group.
--> Membership report message allows the receiver to join a source-specific multicast group or anycast specific multicast group.
--> IGMP snooping mechanism is improved in IGMVP3.
--> First Hop Router receives the join messages with source address so there is no need for a rendezvous point.
--> Uses the multicast range of 232.0.0.0/8
Md.Kareem
CCIE #54759
--> In IGMPv2 receiver can specify only group address from any source address to join the multicast group.
--> In the IGMPv3 receiver can specify the group address as well as the source address of the group from which it wants to receive the multicast traffic.
--> IGMPv3 is backward capable of IGMPv1/IGMPv2.
--> Host uses different multicast address 224.0.0.22 to send membership reports/join messages to the router.
--> IGMPv3 removes the one membership report per group of IGMPv1/v2.
--> In IGMPv3, hosts can use only one membership report (Group Membership Report) to join more than one multicast group.
--> In IGMPv3, receivers can also use membership reports to leave the multicast group.
--> Membership report message allows the receiver to join a source-specific multicast group or anycast specific multicast group.
--> IGMP snooping mechanism is improved in IGMVP3.
--> First Hop Router receives the join messages with source address so there is no need for a rendezvous point.
--> Uses the multicast range of 232.0.0.0/8
Md.Kareem
CCIE #54759
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