FTP Proxy from special port

[MageMinds]

Hi,

I know the FTP Proxy rules will be created only when you NAT port 21 from WAN to LAN or any other network, but my ISP is blocking my incoming port 21 and I wish I could fire the FTP Helper on port 2121 for example.

I can make modification through SSH, and I wish I could also make those changes permanent, I'm using an embedded installation.

MageMinds