Standards

There are three versions of IGMP, as authentic by Request for Comments (RFC) abstracts of the Internet Engineering Task Force (IETF). IGMPv1 is authentic by RFC 1112, IGMPv2 is authentic by RFC 2236 and IGMPv3 was initially authentic by RFC 3376 and has been adapted by RFC 4604 which defines both IGMPv3 and MLDv2. IGMPv2 improves over IGMPv1 by abacus the adeptness for a host to arresting admiration to leave a multicast group. IGMPv3 improves over IGMPv2 mainly by abacus the adeptness to accept to multicast basic from a set of antecedent IP addresses only.[2]