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Multicast Listener Discovery Version 2 (MLDv2) for IPv6 (RFC3810)

IP.com Disclosure Number: IPCOM000028974D
Original Publication Date: 2004-Jun-01
Included in the Prior Art Database: 2004-Jun-10

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Vida: AUTHOR [+4]

Abstract

This document updates RFC 2710, and it specifies Version 2 of the Multicast Listener Discovery Protocol (MLDv2). MLD is used by an IPv6 router to discover the presence of multicast listeners on directly attached links, and to discover which multicast addresses are of interest to those neighboring nodes. MLDv2 is designed to be interoperable with MLDv1. MLDv2 adds the ability for a node to report interest in listening to packets with a particular multicast address only from specific source addresses or from all sources except for specific source addresses.

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Network Working Group                                       R. Vida, Ed.

Request for Comments: 3810                                 L. Costa, Ed.

Updates: 2710                                                       LIP6

Category: Standards Track                                      June 2004

        Multicast Listener Discovery Version 2 (MLDv2) for IPv6

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 (2004).

Abstract

   This document updates RFC 2710, and it specifies Version 2 of the

   Multicast Listener Discovery Protocol (MLDv2).  MLD is used by an

   IPv6 router to discover the presence of multicast listeners on

   directly attached links, and to discover which multicast addresses

   are of interest to those neighboring nodes.  MLDv2 is designed to be

   interoperable with MLDv1.  MLDv2 adds the ability for a node to

   report interest in listening to packets with a particular multicast

   address only from specific source addresses or from all sources

   except for specific source addresses.

Vida & Costa                Standards Track                     [Page 1]

RFC 3810                     MLDv2 for IPv6                    June 2004

Table of Contents

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

   2.  Protocol Overview . . . . . . . . . . . . . . . . . . . . . .   3

   3.  The Service Interface for Requesting IP Multicast Reception .   9

   4.  Multicast Listening State Maintained by Nodes . . . . . . . .  11

   5.  Message Formats . . . . . . . . . . . . . . . . . . . . . . .  13

   6.  Protocol Description for Multicast Address Listeners. . . . .  27

   7.  Protocol Description for Multicast Routers. . . . . . . . . .  34

   8.  Interoperation with MLDv1 . . . . . . . . . . . . . . . . . .  48

   9.  List of Timers, Counters, and their Default Values. . . . . .  51

   10. Security Considerations . . . . . . . . . . . . . . . . . . .  55

   11. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  56

   12. References. . . . . . . . . . . . . . . . . . . . . . . . . .  56

   13. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  57

   Appendix A. Design Rationale. . . . . . . . . . . . . . . . . . .  58

   Appendix B. Summary of Changes from MLDv1 . . . . . . . . . . . .  59

   Edito...