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Fwd: I-D Action:draft-van-beijnum-modified-nat-pt-02.txt

Hi,

I've updated my modified NAT-PT draft (again). It now includes:
- changes to NAT-PT in the form of using A records directly rather than syntetic AAAA records so no DNS issues - synthetic RFC 1918 source address coupled with the above allows for applications to see that they're doing IPv4 rather than IPv6 and that there is NAT involved 
- the above allows for non-IPv6 applications to work
- IPv4-to-IPv6-to-IPv4 translation without double NAT
- a mechanism for IPv6-only hosts to receive incoming sessions from the IPv4-only world
Please note that this is a discussion document, I'm not suggesting that everything in it is adopted as-is. 

Begin forwarded message:
A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Modified Network Address Translation - Protocol Translation 
	Author(s)       : I. van Beijnum
	Filename        : draft-van-beijnum-modified-nat-pt-02.txt
	Pages           : 16
	Date            : 2007-11-19



A smooth transition from IPv4 to IPv6 requires that either all hosts
are upgraded to dual stack before the first hosts can become IPv6-
only, or that there be some mechanism for IPv6-only hosts to talk to
IPv4-only hosts.  Expecting the former within a reasonable timeframe
isn't realistic, based on current adoption of dual stack combined
with the latest projections for the IPv4 depletion that point to a
date early in the next decade.  And the IETF has recently deprecated
the main mechanism that allows the latter: NAT-PT.
This document proposes modifications to NAT-PT that address the
reasons why the mechanism was deprecated.  This should allow future
deployment of the modified NAT-PT as an IPv4-to-IPv6 transition
mechanism, giving operators the option of running their networks
largely IPv6-only.



A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-van-beijnum-modified-nat-pt-02.txt