I am unable to connect to some FTP sites via Firefox, IE, or CMD when I am using the Astaro FTP Proxy and "Transparent" mode is selected. As soon as I change it to non-transparent mode, everything works fine.

Why exactly is this? Is there a security risk when not using it in Transparent mode? If I leave it in non-trans mode, does the virus scan and everything still work?

I have ASG320-7.306 (i know it needs updating)

In command line FTP, the client shows: "421 FTP server is sending you rubbish! Closing connection.
Connection closed by remote host."


The FTP log on the Astaro shows:
2009:06:30-09:35:41 (none) frox[4733]: Reloading configuration
2009:06:30-09:35:41 (none) frox[22048]: Connect from INTERNAL CLIENT IP
2009:06:30-09:35:41 (none) frox[22048]: ... to EXTERNAL SERVER IP()
2009:06:30-09:35:50 (none) frox[22048]: Server is sending us a badly formed control stream.
2009:06:30-09:35:50 (none) frox[22048]: Closing session

Also, when setting FTP Proxy to non-Transparent mode, nothing is logged when successful.

thanks, I appreciate the help and effort!