This is a must have for any Smoothwall Express Setup. This mod gives you full control of your interfaces including multiple IP addresses, ports and mac control: The mod gives ultimate control with the following: 1. Specify origin source IP/Network 2. Specify the origin/destination ports to be open for your specific IP/Network e.g. Open access for the IP 222.111.55.333 on port 57 to your IP xxx.xxx.xxx.xxx on port 22 To install the mod simply run the following from command line: 1. wget http://stans-smoothwall3mods.googlecode.com/files/fullfirewall-3.3.3.1-Express-3.0-i386.run 2. sh ./fullfirewall-3.3.3.1-Express-3.0-i386.run **NOTE: Smoothwall Express 3.0 should be up to and including update 9 – Maintenance > Updates. Log back into the Smoothwall GUI and you will now see the Full Firewall Control interface. control , full firewall , mod , port forwarding , smoothwall For further reading take a look at below link: https://www.linuxtutoria