Question : FTP on non standard Port

FTP on non standard Port. Using IIS FTP when I open the Firewall (Hardware Forigate) wide open it works fine but when I limit it to the custom port it does not. I am using port 21201.

TCP Source port 1-65535 Destination port is 21201.

Any ideas why this is. There must be another port that needs to be open????

Answer : FTP on non standard Port

check this link for details about FTP: http://www.mdjnet.dk/ftp.html
If your Firewall supports port forwarding, please forward the port 21201 to 21 and you keep the port 21 as it is by default on IIS.
another port to translate would be port 20
In case your firewall does not support a valuable port forwarding, then change the port on IIS.
Remember that FFTP as 2 modes: active or passive. check this links http://www.velikan.net/iis-passive-ftp/