The ProSAFE VPN Firewall series is already EoL (End-of-Life) and this also includes the ProSAFE VPN Client Professional Software. Kindly read the announcement here.
You may want to check the Insight Instant VPN Router which is the BR500 here and on how to setup Remote VPN with Insight Instant VPN here.
For the specifications of the BR500, check it data sheet here.
