From: "VinceV" <vpv at ak7 dot com>

> Believe it or not this is more likely an issue with your FTP server than 
> it is
> M0n0.  I'm going to assume that your FTP server is behind a M0n0 that is
> performing NAT.

> If that's the case your FTP server is transmitting it's IP address and the 
> port
> number back to the FTP client.  M0n0 does not re-write the IP address 
> contained
> in the return data.  You need to configure your FTP server to return the 
> M0n0's
> external IP address when the source IP is not part of your local network.

What he said.  I use ProFTPd on Ubuntu, and it works fine out of the box. 
Sorry to confirm the bad news.

                                Lee