[Openswan Users] OpenSwan, Windows, NAT-t, L2TP, not working.

[Jacco de Leeuw]

Valentí Jové wrote:

> I'm trying to configure an IPSEC/L2TP tunnel between an FreeSwan/Openswan Linux
> and a Windows roadwarrior, both of them are natted.
> This is kernel 2.6, and we've tried with patched vanilla kernels, Suse kernels,

l2tpd is known not to work with kernel 2.6's IPsec implementation when there
is NAT. Possibly because of buggy tty support.

rp-l2tp reportedly does work.

I have also never tested with double NAT (both client and server NATed).
I suggest you try first without NAT, e.g. in a test lab.

Jacco
-- 
Jacco de Leeuw                         mailto:jacco2 at dds.nl
Zaandam, The Netherlands           http://www.jacco2.dds.nl