We have deployed our coldfusion app within Tomcat container, and CFFTP has
stopped working.

It returns FTP error 425 : Cannot build data connection, which usually means
that PASSIVE mode is not on, however setting PASSIVE atrribute to either on or
off has no result.

Obviously, I checked for things like file exists, permissions are proper and I
can manually ftp the file from the server.
Empty file was created on the remote site.

However, this exact same code was working fine when CF was deployed with its
own JRun container.

Any ideas?