From: Javier García de Bringas (jgarcia_at_sgi.es)
Date: Thu Oct 31 2002 - 19:14:49 CET
Hello,
I'm thinking about doing an IPSec tunnel to a remote server using
FreeS/WAN. However, my PC has a private IP address and there is a router
doing NAPT in order to allow it and some other PCs to access Internet. I
have no way of changing anything in the router as it is owned by my ISP. How
can I do a VPN using FreeS/WAN in this situation? I understand the problems
NAT creates to IPSec connections, however I know some vendors have
implemented non-standard extensions to IPSec in order to pass through NAT.
The one I've seen encapsulates IPSec in TCP packets, so NAT doesn't affect
the encrypted neither the authenticated part. Are there any such extensions
in FreeS/WAN? Is it something under development (maybe I could help with
it), or in the contrary it isn't been thought about at all?
Thank you very much for your help,
Javier
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