<?xml version='1.0'?>

<reference anchor='RFC2236'>

<front>
<title abbrev='Internet Group Management Protocol'>Internet Group Management Protocol, Version 2</title>
<author initials='W.C.' surname='Fenner' fullname='William C. Fenner'>
<organization>Xerox PARC</organization>
<address>
<postal>
<street>3333 Coyote Hill Road</street>
<street>Palo Alto</street>
<street>CA 94304</street></postal>
<phone>+1 650 812 4816</phone>
<email>fenner@parc.xerox.com</email></address></author>
<date month='November' year='1997' />
<area>Internet</area>
<keyword>internet group multicast protocol</keyword>
<keyword>multicast</keyword>
<keyword>routing</keyword>
<abstract>
<t>
   This memo documents IGMPv2, used by IP hosts to report their
   multicast group memberships to routers.  It updates STD 5, RFC 1112.
</t>
<t>
   IGMPv2 allows group membership termination to be quickly reported to
   the routing protocol, which is important for high-bandwidth multicast
   groups and/or subnets with highly volatile group membership.
</t>
<t>
   This document is a product of the Inter-Domain Multicast Routing
   working group within the Internet Engineering Task Force.  Comments
   are solicited and should be addressed to the working group&apos;s mailing
   list at idmr@cs.ucl.ac.uk and/or the author(s).
</t></abstract></front>

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