property DataIP: string;
DataIP indicates the IP address to use when binding the data channel for the FTP client session. If a value is empty, a local IP address of the current connection to a FTP server is taken.
DataIP with DataPort are used when uploading and downloading files, as well as when obtaining a list of files to create a data channel that actively listens to a server connection in the non Passive mode. FTP client will send this address using the 'PORT' or 'EPRT' commands.