Configuring Advanced FTP Settings

Go to Control Panel > Network & File Services > FTP > FTP Service.

Select Enable FTP Service.

Go to Advanced.

Configure the following advanced FTP settings.

Setting	Description
Passive FTP Port Range	You can use the default port range (55536-56559) or specify a port range larger than 1023. When using this function, make sure you have opened the ports on your router or firewall.
Respond with external IP address for passive FTP connection request	Enable this function when a passive FTP connection is in use, the FTP server (NAS) is behind a router, and a remote computer cannot connect to the FTP server over the WAN. When this is enabled, the NAS replies with the specified IP address or automatically detects an external IP address so that the remote computer is able to connect to the FTP server.
Set root directory	After enabling this function and selecting a root directory, only that directory will be visible to FTP users. Otherwise, all of the shared folders will be visible.

Setting

Description

Passive FTP Port Range

You can use the default port range (55536-56559) or specify a port range larger than 1023.

When using this function, make sure you have opened the ports on your router or firewall.

Respond with external IP address for passive FTP connection request

Enable this function when a passive FTP connection is in use, the FTP server (NAS) is behind a router, and a remote computer cannot connect to the FTP server over the WAN.

When this is enabled, the NAS replies with the specified IP address or automatically detects an external IP address so that the remote computer is able to connect to the FTP server.

Set root directory

After enabling this function and selecting a root directory, only that directory will be visible to FTP users. Otherwise, all of the shared folders will be visible.

Click Apply.