openVPN in KVM VM

Hi,

I have a problem with running openVPN server in a KVM VM?
I found some howto's for this problem but only for openvz.

http://martinlanner.com/2009/06/10/h...on-proxmox-ve/

Is there a howto for KVM?

OpenVPN works but I can only ping the vpn server and not other server in the local lan.
I think it is a routing problem.

Thank you for your help.

Regards,
Oer2001