[Openswan Users] OT IPSec -- L2TPD/Xauth

[Willie Gillespie]

On 10/16/2012 04:06 AM, Erich Titl wrote:
> Thanks a lot for your reply. The main reason not to run L2TP on the
> firewall is that all potential users have credentials on the M$
> environment and I obviously don't want to replicate that information.
>
> On the IPSEc Level I want to use X.509 Certificate authentication.

This may be helpful to you then, obviously changing things up to work 
for your environment:
http://www.rootmanager.com/ubuntu-ipsec-l2tp-windows-domain-auth/setting-up-openswan-xl2tpd-with-native-windows-clients-lucid.html