An Internet IPv6 Transition Plan

Tue Jul 31 20:12:28 UTC 2007

Scott Francis wrote:
> On 7/29/07, Peter Dambier <peter at 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

-- 
Peter and Karin Dambier
Cesidian Root - Radice Cesidiana
Rimbacher Strasse 16
D-69509 Moerlenbach-Bonsweiher
+49(6209)795-816 (Telekom)
+49(6252)750-308 (VoIP: sipgate.de)
mail: peter at peter-dambier.de
mail: peter at echnaton.arl.pirates
http://iason.site.voila.fr/
https://sourceforge.net/projects/iason/
http://www.cesidianroot.com/