RFC - 3376

Internet Group Management Protocol, Version 3

Original:	ftp://ftp.isi.edu/in-notes/rfc3376.txt
Authors:	B. Cain [Cereva Networks], S. Deering [Cisco Systems], I. Kouvelas [Cisco Systems], B. Fenner [AT&T Labs - Research], A. Thyagarajan [Ericsson]
Date:	October 2002
Category:	Proposed Standard

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Obsoletes:
RFC-2236	Internet Group Management Protocol, Version 2 (Obsoleted by RFC-3376prop)

Updated by:
RFC-4604prop	Using Internet Group Management Protocol Version 3 (IGMPv3) and Multicast Listener Discovery Protocol Version 2 (MLDv2) for Source-Specific Multicast

Referred by:	28 RFC
Refers to:	8 RFC

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Status

This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.

Copyright Notice

Copyright (C) The Internet Society (2002). All Rights Reserved.

Abstract

This document specifies Version 3 of the Internet Group Management Protocol, IGMPv3. IGMP is the protocol used by IPv4 systems to report their IP multicast group memberships to neighboring multicast routers. Version 3 of IGMP adds support for "source filtering", that is, the ability for a system to report interest in receiving packets *only* from specific source addresses, or from *all but* specific source addresses, sent to a particular multicast address. That information may be used by multicast routing protocols to avoid delivering multicast packets from specific sources to networks where there are no interested receivers.

This document obsoletes RFC 2236(-> 3376^prop).

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