Le Mercredi 2 Juillet 2003 01:38, Fred Wright a écrit :
>
> It's actually much worse than that.  Not only do you have to contend with
> the GRE traffic, but you have to deal with the TCP-based control
> connection, which is only permitted by the protocol to exist once per pair
> of endpoints.  There's even a mechanism in the protocol to close one of
> the "redundant" connections that could occur if you have a bidirectional
> client/server relationship between two machines.  Microsoft tried really
> hard to surpass the NAT-unfriendliness of FTP. :-) L2TP is much more
> straightforward, but less widely supported.

However, le Microsoft's L2TP requires IPSec. It means that it cannot work with 
a NAT ;-)
IPSec can disabled by changing the registry !!!

Regards,
  Vincent