[Openswan Users] Windows/Openswan ipsec problem (authentication method invalid or unsupported)

[Paul Wouters]

On Tue, 3 Jul 2007, Dharmesh Chauhan wrote:

>
> I followed the guideline provided by Nate Carlson (http://www.natecarlson.com/linux/ipsec-x509.php) to setup "Net to Road-warrior" ipsec vpn connection between debian linux gateway and Windows XP road-warrior.
>
> Gateway:      Debian GNU/Linux 3.1
> Road warrior: Microsoft Windows XP SP2
> ipsec:           Linux Openswan 2.4.6 (klips)
>
> When I run ipsec.exe command in windows I am getting this error
>
>
> C:\ipsec>ipsec
> IPSec Version 2.2.0 (c) 2001-2003 Marcus Mueller

Don't use ipsec.exe with XP SP2 or up. Use lsipsectool. You might now even need to mess with the registry
to get things working.

Paul