Slim Port Forward is the core of Magic Router.It is a command line tool forward/redirect/relay TCP or UDP connections.How to use:Start spf.exe from command prompt or batch file:spf ListenIp ListenPort ToIp ToPort UDPSample 1, commonly used, no ListenIp, TCP protocol:spf 3388 192.168.1.1 3389.Sample 2, bind with specific local computer ip:spf 192.168.1.2 3388 192.168.1.1 3389.Sample 3, start with UDP protocol:spf 53 192.168.1.1 53 UDP.