Ftp 500 Illegal PORT command

Trying to connect the ftp server & getting 5000 Illegal port command.  This issue may occur when ftp program is not configured for Passive mode.

You may get error snippet such as:


COMMAND:>         [3/11/2015 1:17:05 PM] PORT 192,168,0,101,196,215

                                [3/11/2015 1:17:05 PM] 500 Illegal PORT command.

ERROR:>                [3/11/2015 1:17:05 PM] Syntax error: command unrecognized.

ERROR:>                [3/11/2015 1:17:05 PM] Failed to establish data socket.


To resolve this issue you can define the port or ftp in configuration file of ftp server & define the IP Address or PASV server.

Check the configuration file for below settings.

pasv_max_port=Enter the max port range allowed on your server.
pasv_min_port=Enter the min port range allowed on your server.
pasv_address=Ip Address of your server.

After that restart the ftp service & check the ftp connection.


Ucodice Technologies
Ucodice Technologies Pvt. Ltd.
Ucodice Technologies Pvt. Ltd.
Ucodice Technologies Pvt. Ltd.


  • pop3@nate.com

    Thank you!!!

    • pop3@nate.com
    • 4

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