we run the DT80 behind a NAT router and want to access it via FTP. As our FTP client uses passive FTP, the router has IP forwarding for port 21 and port range 1024-5000.
Unfortunately it doesn't work. To see what happens I have set P56=8
Here I could see, that after login the command for passive mode is received, that will be answered by the logger with its internal IP address and a port number. This can not work as the FTP client can not connect to this IP.
Is there any possibility to let the FTP server send its external IP instead?