I have a need to open a number of TCP & UDP ports
which I can do with Generic Proxy ... but am I safe doing so ???

Camera Central Station TCP 15000 to 15010, UDP 15000 to 15100

VoIP box TCP 1720, UDP 30000 to 31000

GW TCP 1677

Terminal Server TCP 3389
SQL Server - forget the port no

SMTP TCP Port 25

and some others for Netware etc.

What kind of configuration SINGLE firewall ?