The Requirements and Tentative Solutions for SAVI in IPv4/IPv6 Transition
draft-xu-savi-transition-00

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SAVI                                            K.Xu, G.Hu, J.Bi, M.Xu
Internet Draft                                          Tsinghua Univ.
Intended status: Standard Tracks                                F.Shi
Expires: May 2012                                        China Telecom
                                                     November 20, 2011

       The Requirements and Tentative Solutions for SAVI in IPv4/IPv6
                                Transition
                      draft-xu-savi-transition-00.txt

Abstract

   SAVI Working Group is developing standardize mechanisms that prevent
   nodes attached to the same IP link from spoofing each other's IP
   addresses, and achieve IP source address validation at a finer
   granularity. Unfortunately, up to now, SAVI switch only works under
   the scenario of pure wire/wireless IPv6 Ethernet access subnet. In
   the current stage of IPv4/IPv6 transition which can't be cross over,
   SAVI has to make more progress to adapt it. This document describes
   the requirements and gives tentative solutions for the SAVI in
   IP4/IPv6 transition period. In RFC5565, Wu et.al proposal a softwire
   mesh framework to address the problem of routing information and data
   packets of one protocol how to pass through a single-protocol network
   of the other protocol. According to the real situation of CNGI-CERNET
   and China Telecom, document takes scenario of IPv4 packets transit
   IPv6 network into account.

Status of this Memo

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   This Internet-Draft will expire on May 20, 2012.

Xu, et al.              Expires May 20, 2012                  [Page 1]
Internet-Draft             SAVI Transition               November 2011

Copyright Notice

   Copyright (c) 2011 IETF Trust and the persons identified as the
   document authors. All rights reserved.

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Table of Contents

   1. Introduction ................................................ 3
   2. Conventions used in this document............................ 4
   3. Requirements and solutions for SAVI in IPv4/IPv6 transition.. 4
      3.1. Public 4over6 .......................................... 4
      3.2. Lightweight 4over6...................................... 6
   4. Conclusions ................................................. 6
   5. References .................................................. 6
      5.1. Normative References.................................... 6
   6. Acknowledgments ............................................. 6

Xu, et al.               Expires May 20 2012                  [Page 2]
Internet-Draft             SAVI Transition               November 2011

1. Introduction

   Without a doubt, SAVI has made significant contribution for IP source
   address validation and anti-spoofing in the scenario of pure IPv6
   Ethernet access subnet. Current situation is that IPv4 address has
   worn out but still takes a domination position for a long time, and
   IPv6 networking start to shrive. Meanwhile, SAVI switch only works at
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