I have a watchguard firebox XTM. I am working with another company which has setup an FTP account for files that I need to get. The details about the connection are:
Encryption: Require explicit FTP over TLS
Logon type: Normal
When I login everything is okay but it fails when listing the files. This is what they sent me:
"Please note: This is an FTP/s connection (Secure Socket Level 3). You will need to have port range 20900-20999 open on your Fire Wall."
I don't know how to do that and I would appreciate if someone would help me out I have read the instructions on the watchguard help site with no success.