Хотя..

Status:    Resolving IP-Address for ftp.opennet.ru
Status:    Connecting to 77.234.201.243:21...
Status:    Connection established, waiting for welcome message...
Response:    220 Welcome to OpenNet FTP server.
Command:    USER anonymous
Response:    331 Please specify the password.
Command:    PASS **************
Response:    230 Login successful.
Command:    SYST
Response:    215 UNIX Type: L8
Command:    FEAT
Response:    211-Features:
Response:     EPRT
Response:     EPSV
Response:     MDTM
Response:     PASV
Response:     REST STREAM
Response:     SIZE
Response:     TVFS
Response:    211 End
Status:    Connected
Status:    Retrieving directory listing...
Command:    PWD
Response:    257 "/"
Command:    TYPE I
Response:    200 Switching to Binary mode.
Command:    PASV
Response:    227 Entering Passive Mode (77,234,201,243,227,197)
Command:    LIST
Response:    425 Security: Bad IP connecting.
Error:    Failed to retrieve directory listing