Network Working Group M. Boucadair, Ed.
Internet-Draft France Telecom
Updates: 7371 (if approved) J. Qin
Intended status: Standards Track Cisco
Expires: March 28, 2015 Y. Lee
Comcast
S. Venaas
Cisco Systems
X. Li
CERNET Center/Tsinghua University
M. Xu
Tsinghua University
September 24, 2014
IPv6 Multicast Address With Embedded IPv4 Multicast Address
draft-ietf-mboned-64-multicast-address-format-06
Abstract
This document reserves one bit (M-bit) of the unicast prefix-based
multicast IPv6 address for ASM and an IPv6 multicast prefix for SSM
mode to be used in the context of IPv4-IPv6 interconnection.
The document specifies an algorithmic translation of an IPv6
multicast address to a corresponding IPv4 multicast address, and vice
versa. This algorithmic translation can be used in both IPv4-IPv6
translation or encapsulation schemes.
This document updates RFC 7371.
Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119].
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/.
Boucadair, et al. Expires March 28, 2015 [Page 1]Internet-Draft 64 Multicast Address Format September 2014
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 March 28, 2015.
Copyright Notice
Copyright (c) 2014 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
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. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. IPv4-Embedded IPv6 Multicast Prefix & Address . . . . . . . . 4
3.1. ASM Mode . . . . . . . . . . . . . . . . . . . . . . . . 4
3.2. SSM Mode . . . . . . . . . . . . . . . . . . . . . . . . 5
3.3. IPv4-Embedded IPv6 Multicast Address . . . . . . . . . . 5
3.4. Address Translation Algorithm . . . . . . . . . . . . . . 6
3.5. Textual Representation . . . . . . . . . . . . . . . . . 6
3.6. Source IPv4 Address in the IPv6 Realm . . . . . . . . . . 6
4. Examples . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 7
6. Security Considerations . . . . . . . . . . . . . . . . . . . 7
7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 7
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 7
8.1. Normative References . . . . . . . . . . . . . . . . . . 7
8.2. Informative References . . . . . . . . . . . . . . . . . 8
Appendix A. Motivations . . . . . . . . . . . . . . . . . . . . 9
A.1. Why an Address Format is Needed for Multicast IPv4-IPv6
Interconnection? . . . . . . . . . . . . . . . . . . . . 9
datatracker.ietf.org