User attempted port command using incorrect parameters.
The FTP client sent a PORT command to the server. The server is configured to reject PORT commands with the parameter that you specified.
The request is rejected. FTP continues.
Contact system programmer.
See the z/OS Communications Server: IP Configuration Reference for information about configuring your server to reject PORT commands with the PORTCOMMAND, PORTCOMMANDIPADDR, and PORTCOMMANDPORT statements. Correct the server configuration as appropriate for your installation. Advise users of any restrictions you have placed on the PORT command parameters.