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Krister's Blog
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External Access to PC
using FTP Server Port Forwarding

For file management and file transfer on my LAN between Android devices and the PC, I use FTP when wanting to avoid using an USB connection. Here is how to access the PC remotely from outside the LAN using the FTP protocol.

Video 2 min

"FTP Server" has to be allowed communicating through the Windows Defender Firewall.

In my Router's Advanced Settings / Forwarding Rules / IPv4 Port Mapping/ the Port 21 is entered as the internal port as well as the external ports. To access remotely I then enter the external IP address of the router plus the port.

I usually leave the port forward mappings disabled, and enable them only when I plan to access remotely.

FTP Port Forwarding