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After the configuration, if internet users still cannot access the FTP server, try the following methods:
Ensure that the LAN port number configured in the port mapping function is the same as the
service port number set on the server.
Close the firewall, antivirus software and security guards on the host of the FTP server and try
again.
10.9.8 UPnP
UPnP is short for Universal Plug and Play. This function enables the router to open port
automatically for UPnP-based programs. It is generally used for P2P programs, such as BitComet
and AnyChat, and helps increase the download speed.
To access the configuration page, log in to the web UI of the router, and navigate to More >
Advanced > UPnP.
This function is enabled by default.
When any program that supports the UPnP function is launched, you can find the port conversion
information on this page when the program sends any requests.
The following table describes the parameters displayed on this page.
Parameter description
Parameter
Description
UPnP
Used to enable or disable the UPnP function.
Remote Host
Specifies the address of remote host to receive and send responses.
External Port
Specifies the port set on the router to map to the outer.
Internal Host
Specifies the address of inner host to receive and send responses.
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