Re: A Transition architecture where neither ISP-NATs nor CPE-NAT64s are neeeded

[Brian E Carpenter <brian.e.carpenter@gmail.com>]

Rémi,

I think this  is a very interesting approach.
We could summarise in two phrases, I think:

1. Tunnel to NAT
2. Borrow Address/Port

However, it doesn't solve the case of a genuine "unistack"
IPv6 host, and we have to decide whether that case is of real
concern.

I was also wondering whether the work in SOFTWIRE already
covers at least part of this solution?

     Brian

On 2008-04-08 01:23, Rémi Després wrote:
> The following draft has just been posted.
> 
> http://www.ietf.org/internet-drafts/draft-despres-v6ops-apbp-00.txt
> 
> It presents an approach whereby:
> - The IPv4 to IPv6 transition period needs neither NATs in ISP
> infrastructures, nor NAT64s in CPE routers (only NAT44s, plus an
> address-port-borrowing-protocol similar to that presented by Brian
> Carpenter in SHANTI).
> - It also revives and improves the DSTM idea that duly augmented dual
> stack hosts can establish pure IPv4 E2E transport connections (more E2E
> transparency by augmenting the number of configurations where no NAT at
> all is necessary).
> 
> Regards.
> 
> Rémi
> 
>