Home Networking Architecture for IPv6
draft-ietf-homenet-arch-06

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Document Type Active Internet-Draft (homenet WG)
Last updated 2012-10-22
Replaces draft-chown-homenet-arch
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Network Working Group                                      T. Chown, Ed.
Internet-Draft                                 University of Southampton
Intended status: Informational                                  J. Arkko
Expires: April 25, 2013                                         Ericsson
                                                               A. Brandt
                                                           Sigma Designs
                                                                O. Troan
                                                     Cisco Systems, Inc.
                                                                 J. Weil
                                                       Time Warner Cable
                                                        October 22, 2012

                 Home Networking Architecture for IPv6
                       draft-ietf-homenet-arch-06

Abstract

   This text describes evolving networking technology within
   increasingly large residential home networks.  The goal of this
   document is to define an architecture for IPv6-based home networking,
   while describing the associated principles, considerations and
   requirements.  The text briefly highlights the 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 April 25, 2013.

Chown, et al.            Expires April 25, 2013                 [Page 1]
Internet-Draft            IPv6 Home Networking              October 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
   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 . . . . . . . . . . . . . . .  6
     2.2.  Global addressability and elimination of NAT . . . . . . .  7
     2.3.  Multi-Addressing of devices  . . . . . . . . . . . . . . .  8
     2.4.  Unique Local Addresses (ULAs)  . . . . . . . . . . . . . .  8
     2.5.  Naming, and manual configuration of IP addresses . . . . .  9
     2.6.  IPv6-only operation  . . . . . . . . . . . . . . . . . . .  9
   3.  Homenet Architecture . . . . . . . . . . . . . . . . . . . . . 10
     3.1.  General Principles . . . . . . . . . . . . . . . . . . . . 11
       3.1.1.  Reuse existing protocols . . . . . . . . . . . . . . . 11
       3.1.2.  Minimise changes to hosts and routers  . . . . . . . . 11
     3.2.  Homenet Topology . . . . . . . . . . . . . . . . . . . . . 11
       3.2.1.  Supporting arbitrary topologies  . . . . . . . . . . . 11
       3.2.2.  Network topology models  . . . . . . . . . . . . . . . 12
       3.2.3.  Dual-stack topologies  . . . . . . . . . . . . . . . . 16
       3.2.4.  Multihoming  . . . . . . . . . . . . . . . . . . . . . 17
     3.3.  A Self-Organising Network  . . . . . . . . . . . . . . . . 18
       3.3.1.  Homenet realms and borders . . . . . . . . . . . . . . 19
       3.3.2.  Largest practical subnets  . . . . . . . . . . . . . . 20
       3.3.3.  Handling multiple homenets . . . . . . . . . . . . . . 20
       3.3.4.  Coordination of configuration information  . . . . . . 20
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