Re: An Internet IPv6 Transition Plan

[Peter Dambier <peter () peter-dambier de>]

Scott Francis wrote:
> On 7/29/07, Peter Dambier <peter () peter-dambier de> wrote:
>
>
> > Ways have been found to drill holes into NAT-routers and firewalls,
> > but they are working only as long as it is only you who wants to break
> > out of the NAT. As soon as the mainstream has only left rfc 1918 addresses
> > p2p will stop.
>
>
> really?
>
> http://samy.pl/chownat/
>
> NAT stops nothing. The concept in the above script (which has been
> around for several years) would be trivial for any P2P software to
> implement if it detects it is behind a NAT; in fact, this method may
> well be in use already.


I have read that is what skype is doing and probably some troyans.

Still you have to "talk" to your NAT-router and the other party has
to talk to their NAT-router to make those two NAT-routers talk to
each other. When those two router cannot see each other because
they too are living behind NAT then you have got a problem.

I guess you can solve it but the number of ports is limited and
things get a lot trickier. When you try to get out of the big NAT
(china) then the number of available ports versus the number of
users who want to get out - is the limit.


Kind regards
Peter and Karin

--
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