I have a port forward to my FTP server. It is working but transfers fail. why?

FTP has multiple connections. If you setup a port forward for the control session (port 21) then you must also setup a port forward for the transfer sessions. You can do this in multiple ways.

  1. Configure your server to use a range of ports for a transfer (10000-20000) and configure Untangle to forward all of these ports to the FTP server.
  2. Use 1:1 NAT
  3. Use a Bypass Rule for the FTP Server IP Address
Was this article helpful?
0 out of 0 found this helpful
Have more questions? Submit a request


Powered by Zendesk