Multicast Addresses for Documentation
draft-ietf-mboned-mcaddrdoc-03

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Document Type Active Internet-Draft (mboned WG)
Last updated 2012-05-10 (latest revision 2012-02-08)
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Intended RFC status Informational
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Send notices to mboned-chairs@tools.ietf.org, draft-ietf-mboned-mcaddrdoc@tools.ietf.org
Network Working Group                                          S. Venaas
Internet-Draft                                                 R. Parekh
Intended status: Informational                           G. Van de Velde
Expires: August 12, 2012                                   cisco Systems
                                                                T. Chown
                                               University of Southampton
                                                              M. Eubanks
                                                 Iformata Communications
                                                        February 9, 2012

                 Multicast Addresses for Documentation
                   draft-ietf-mboned-mcaddrdoc-03.txt

Abstract

   This document discusses which multicast addresses should be used for
   documentation purposes and reserves multicast addresses for such use.
   Some multicast addresses are derived from AS numbers or unicast
   addresses.  This document also explains how these can be used for
   documentation purposes.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on August 12, 2012.

Copyright Notice

   Copyright (c) 2012 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents

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   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  IPv4 multicast documentation addresses . . . . . . . . . . . .  4
     2.1.  Administratively scoped IPv4 multicast addresses . . . . .  4
     2.2.  GLOP multicast addresses . . . . . . . . . . . . . . . . .  4
     2.3.  Unicast prefix based IPv4 multicast addresses  . . . . . .  5
   3.  IPv6 multicast documentation addresses . . . . . . . . . . . .  6
     3.1.  Unicast prefix based IPv6 multicast addresses  . . . . . .  6
     3.2.  Embedded-RP IPv6 multicast addresses . . . . . . . . . . .  6
   4.  Security Considerations  . . . . . . . . . . . . . . . . . . .  8
   5.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  9
   6.  Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 10
   7.  Informative References . . . . . . . . . . . . . . . . . . . . 11
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 12

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1.  Introduction

   It is often useful in documentation, IETF documents, etc., to provide
   examples containing IP multicast addresses.  For documentation where
   examples of general purpose multicast addresses are needed, one
   should use multicast addresses that never will be assigned or in
   actual use.  There is a risk that addresses used in examples may
   accidentally be used.  It is then important that the same addresses
   are not used by other multicast applications or services.  It may
   also be beneficial to filter out such addresses from multicast
   signalling and multicast data sent to such addresses.

   For unicast there are both IPv4 and IPv6 addresses reserved for this
   purpose, see [RFC5737] and [RFC3849] respectively.  This document
   reserves multicast addresses for this purpose.

   There are also some multicast addresses that are derived from AS
   numbers or unicast addresses.  For examples where such addresses are
   desired, one should derive them from the AS numbers and unicast
   addresses reserved for documentation purposes.  This document also
   discusses the use of these.

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