Hi there, I don't know the reason of this message but I've had the same if I mistakenly MASQ'ed doubly, i. e. packet went throu by two rules with -j MASQ (one from FORWARD and one from OUTPUT chain).
Regards for all Chris ----- Original Message ----- From: "Gabor Gludovatz" <[EMAIL PROTECTED]> To: <debian-user@lists.debian.org> Sent: Friday, May 25, 2001 4:18 PM Subject: invalid PORT command > Hello, > > there is an NT FTP server with private IP (192.168.0.240) behind a > Debian, and on the Debian the port 90 is forwarded to the nt's port 21 > with redir. If I try to connect > to the Debian's port 90, I get connected to the NT, but if my ftp client > tries to download > something or even do a directory listing, the nt's ftp servers says: > 'invalid port command'. > > So, the server (the NT) is masquaraded, not the client, that's why I use > PORT instead of PASV. > > My FTP client (Internet) --> Debian (masq firewall) --> NT FTP server > (private IP) > > Cmd: PORT 63,112,201,195,4,136 > 500: Invalid PORT Command. > > Does someone know, what to do in this case? > > The ftp server is Microsoft FTP Service (Version 5.0). > > Thanks, > Gabor > > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]