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IPv6 Home Networking Architecture Principles
RFC 7368

Document type: RFC - Informational (October 2014; No errata)
Document stream: IETF
Last updated: 2014-10-24
Other versions: plain text, pdf, html

IETF State: Submitted to IESG for Publication Sep 2011 Dec 2011
Consensus: Yes
Document shepherd: Ray Bellis
Shepherd Write-Up: Last changed 2013-08-02

IESG State: RFC 7368 (Informational)
IANA Action State: No IC
Responsible AD: Ted Lemon
Send notices to: homenet-chairs@tools.ietf.org, draft-ietf-homenet-arch@tools.ietf.org

Internet Engineering Task Force (IETF)                     T. Chown, Ed.
Request for Comments: 7368                     University of Southampton
Category: Informational                                         J. Arkko
ISSN: 2070-1721                                                 Ericsson
                                                               A. Brandt
                                                           Sigma Designs
                                                                O. Troan
                                                     Cisco Systems, Inc.
                                                                 J. Weil
                                                       Time Warner Cable
                                                            October 2014

              IPv6 Home Networking Architecture Principles

Abstract

   This text describes evolving networking technology within residential
   home networks with increasing numbers of devices and a trend towards
   increased internal routing.  The goal of this document is to define a
   general architecture for IPv6-based home networking, describing the
   associated principles, considerations, and requirements.  The text
   briefly highlights specific implications of the introduction of IPv6
   for home networking, discusses the elements of the architecture, and
   suggests how standard IPv6 mechanisms and addressing can be employed
   in home networking.  The architecture describes the need for specific
   protocol extensions for certain additional functionality.  It is
   assumed that the IPv6 home network is not actively managed and runs
   as an IPv6-only or dual-stack network.  There are no recommendations
   in this text for the IPv4 part of the network.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Not all documents
   approved by the IESG are a candidate for any level of Internet
   Standard; see Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc7368.

Chown, et al.                 Informational                     [Page 1]
RFC 7368                  IPv6 Home Networking              October 2014

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  . . . . . . . . . . . . . . . . . . . . . . . .   4
     1.1.  Terminology and Abbreviations . . . . . . . . . . . . . .   5
   2.  Effects of IPv6 on Home Networking  . . . . . . . . . . . . .   6
     2.1.  Multiple Subnets and Routers  . . . . . . . . . . . . . .   7
     2.2.  Global Addressability and Elimination of NAT  . . . . . .   8
     2.3.  Multi-Addressing of Devices . . . . . . . . . . . . . . .   8
     2.4.  Unique Local Addresses (ULAs) . . . . . . . . . . . . . .   9
     2.5.  Avoiding Manual Configuration of IP Addresses . . . . . .  10
     2.6.  IPv6-Only Operation . . . . . . . . . . . . . . . . . . .  11
   3.  Homenet Architecture Principles . . . . . . . . . . . . . . .  11
     3.1.  General Principles  . . . . . . . . . . . . . . . . . . .  12
       3.1.1.  Reuse Existing Protocols  . . . . . . . . . . . . . .  12
       3.1.2.  Minimise Changes to Hosts and Routers . . . . . . . .  13
     3.2.  Homenet Topology  . . . . . . . . . . . . . . . . . . . .  13
       3.2.1.  Supporting Arbitrary Topologies . . . . . . . . . . .  13
       3.2.2.  Network Topology Models . . . . . . . . . . . . . . .  14
       3.2.3.  Dual-Stack Topologies . . . . . . . . . . . . . . . .  18
       3.2.4.  Multihoming . . . . . . . . . . . . . . . . . . . . .  19
       3.2.5.  Mobility Support  . . . . . . . . . . . . . . . . . .  20
     3.3.  A Self-Organising Network . . . . . . . . . . . . . . . .  21
       3.3.1.  Differentiating Neighbouring Homenets . . . . . . . .  21

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