SoftEther VPN User Forum

I am trying to configure SoftEther VPN server to work with cisco vpn client. I want to use Group Authentication in client, but I cannot find where to set up group password for group on server. I use softether vpn server manager. I followed tutorial http://exalute.blogspot.sk/2013/11/how- ... erver.html. And then created group. Do I have to use certificates instead of PSK ?
With softether vpn client everything works fine, but I need cisco vpn client for issue simulation.
Thank you.

You cannot use Cisco client with SoftEther VPN Server.

http://www.vpnusers.com/viewtopic.php?f=7&t=1232

I red that topic, but I assumed this is something esle. Anyway, thank you for fast response.