Tenda 3G611R+, Руководство пользователя

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menu to add to the configured one above.

Add: Add the selected well-known port to the
policy ID.
For example:
The server at the IP address of 192.168.0.10 in LAN
provides WEB service at the port of 80 and Telnet
service at the port of 23. If you want the clients on
the Internet to visit this server, please set the device
as the diagram above.
NOTE: If you set the virtual server of the service
port as 80, you must set the Web management
port on Remote Web Management page to be
any value except 80 such as 8080. Otherwise,
there will be a conflict to disable the virtual
server.
9.3 ALG Service Settings
In the context of computer networking, an ALG or
application layer gateway consists of a security
component that augments a firewall or NAT employed
in a computer network. It allows customized NAT
traversal filters to be plugged into the gateway to
support address and port translation for certain
application layer "control/data" protocols such as FTP,
BitTorrent, SIP, RTSP, file transfer applications etc.