Re: [v6ops] I-D Action: draft-vanrein-v6ops-6bed4-00.txt

Brian E Carpenter <brian.e.carpenter@gmail.com> Thu, 28 July 2011 02:56 UTC

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Date: Thu, 28 Jul 2011 14:55:55 +1200
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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Cc: IPv6 Operations <v6ops@ietf.org>
Subject: Re: [v6ops] I-D Action: draft-vanrein-v6ops-6bed4-00.txt
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Rick,

Somebody suggested Teredo instead. The problem with Teredo is that it
uses a generic prefix and an anycast IPv4 address. Thus it has some
operational problems (less serious than 6to4, but still...).

A variant of Teredo that can use a provider-specific prefix and a
unicast IPv4 address would surely do for the embedded systems market.
But we haven't found enough interest in the IETF for that approach.

See draft-carpenter-softwire-sample-00.txt, draft-lee-softwire-6rd-udp-02.txt
and draft-despres-6a44-00.txt for the historic trail.

Regards
   Brian Carpenter

On 2011-07-26 00:01, internet-drafts@ietf.org wrote:
> A New Internet-Draft is available from the on-line Internet-Drafts directories.
> 
> 	Title           : IPv6 Tunneling for Embedded Systems (6bed4)
> 	Author(s)       : Rick van Rein
> 	Filename        : draft-vanrein-v6ops-6bed4-00.txt
> 	Pages           : 17
> 	Date            : 2011-07-25
> 
>    Given the limited resources available to a lot of embedded systems,
>    dual-stack solutions are not always feasible for such hosts.  A
>    mechanism that supports a direct transition from IPv4-only to
>    IPv6-only may prove beneficial in getting the smallest hosts to make
>    a transition to IPv6 at a much earlier stage than would otherwise be
>    possible.  This calls for tunnels, but no current tunnel technique
>    appears to be optimal for embedded systems.
> 
>    This specification details an IPv6 tunneling technique over UDP and
>    IPv4.  The technique is specifically designed to benefit embedded
>    systems, and to work without end user configuration.  The working
>    principle for obtaining a routable IPv6 address is through stateless
>    autoconfiguration from an anycast tunnel service.
> 
> 
> 
> A URL for this Internet-Draft is:
> http://www.ietf.org/internet-drafts/draft-vanrein-v6ops-6bed4-00.txt
> 
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> 
> This Internet-Draft can be retrieved at:
> ftp://ftp.ietf.org/internet-drafts/draft-vanrein-v6ops-6bed4-00.txt
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