C'est marrant, je fais la même chose mais ça bloque quand "200 PORT command successful."
ftp> open ftp.membres.lycos.fr
Connected to ftp.membres.lycos.fr.
220 fmembf03.lyceu.net FTP server ready.
User (ftp.membres.lycos.frnone)): bcwo
331 Password required for bcwo.
Password:
230 Welcome to Multimania FR.
ftp> literal PASV
227 Entering Passive Mode (213,193,0,69,228,113).
ftp> dir
200 PORT command successful.
425 Can't build data connection: Connection timed out