IPv6 Home Networking Architecture Principles
draft-ietf-homenet-arch-14

The information below is for an old version of the document
Document Type Active Internet-Draft (homenet WG)
Last updated 2014-06-08
Replaces draft-chown-homenet-arch
Stream IETF
Intended RFC status Informational
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Stream WG state Submitted to IESG for Publication
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Shepherd write-up Show (last changed 2013-08-02)
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Responsible AD Ted Lemon
Send notices to homenet-chairs@tools.ietf.org, draft-ietf-homenet-arch@tools.ietf.org
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Network Working Group                                      T. Chown, Ed.
Internet-Draft                                 University of Southampton
Intended status: Informational                                  J. Arkko
Expires: December 10, 2014                                      Ericsson
                                                               A. Brandt
                                                           Sigma Designs
                                                                O. Troan
                                                     Cisco Systems, Inc.
                                                                 J. Weil
                                                       Time Warner Cable
                                                            June 8, 2014

              IPv6 Home Networking Architecture Principles
                       draft-ietf-homenet-arch-14

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 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 December 10, 2014.

Chown, et al.           Expires December 10, 2014               [Page 1]
Internet-Draft            IPv6 Home Networking                 June 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
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   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  . . . . . . . . 12
     3.2.  Homenet Topology . . . . . . . . . . . . . . . . . . . . . 13
       3.2.1.  Supporting arbitrary topologies  . . . . . . . . . . . 13
       3.2.2.  Network topology models  . . . . . . . . . . . . . . . 13
       3.2.3.  Dual-stack topologies  . . . . . . . . . . . . . . . . 18
       3.2.4.  Multihoming  . . . . . . . . . . . . . . . . . . . . . 19
       3.2.5.  Mobility support . . . . . . . . . . . . . . . . . . . 20
     3.3.  A Self-Organising Network  . . . . . . . . . . . . . . . . 20
       3.3.1.  Differentiating neighbouring homenets  . . . . . . . . 21
       3.3.2.  Largest practical subnets  . . . . . . . . . . . . . . 21
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