Question : What is Extended Passive Mode?

This is a general question asking:

What exactly is Extended Passive Mode?

This may require some explaination of basic FTP function.

I'm slowly learning that FTP maybe the most complicated network protocol ever invented.

Answer : What is Extended Passive Mode?

take a look at the following.  it has all of the answers you need..

http://slacksite.com/other/ftp.html