I have a system with Win 2000 Professional. I have set it up as an FTP server using the IIS. I wish to limit the connection to certain IP addresses only. In the "Default FTP Site Properties" dialog box, and in the "Directory Security" pane, there are options for the TCP/IP access restrictions. However, I find that the "Granted Access" and "Denied Access" radio buttons are disabled. The "Add...", "Remove" and "Edit..." buttons are also disabled. In that case, how do I configure IIS such that it only allows certain IP addresses to FTP to it?