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Internet Group Management Protocol, Version 3 (RFC3376)

IP.com Disclosure Number: IPCOM000010075D
Original Publication Date: 2002-Oct-01
Included in the Prior Art Database: 2002-Oct-17

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

B. Cain: AUTHOR [+5]

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 text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 2% of the total text.

Network Working Group                                            B. Cain

Request for Comments: 3376                               Cereva Networks

Obsoletes: 2236                                               S. Deering

Category: Standards Track                                    I. Kouvelas

                                                           Cisco Systems

                                                               B. Fenner

                                                    AT&T Labs - Research

                                                          A. Thyagarajan

                                                                Ericsson

                                                            October 2002

             Internet Group Management Protocol, Version 3

Status of this Memo

   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.

Cain, et. al.               Standards Track                     [Page 1]

RFC 3376                         IGMPv3                     October 2002

Table of Contents

   1.  Introduction. . . . . . . . . . . . . . . . . . . . . . . . .   2

   2.  The Service Interface for Requesting IP Multicast Reception .   3

   3.  Multicast Reception State Maintained by Systems . . . . . . .   5

   4.  Message Formats . . . . . . . . . . . . . ....