Fiberworks Firewalls are supporting OpenVPN and IPSec.
OpenVPN offers a lot of advantages and its free of costs.
The SNET Management Console provides an automatic installer for certificates and the actual OpenVPN version.
For the use with Windows 7 please follow the instructions.
Note: If Windows 7 is not acepting the Gateway IP just copy the following code in your client.config:
redirect-gateway def1