Dmz; Overview; Access The Lan With An Ip Address From The Internet - Tenda 4G680 User Manual

9.3 DMZ
9.3.1 Overview
You can set a certain computer as a DMZ Host to free the computer from any restriction in the
process of accessing the internet. Therefore, the DMZ Host can obtain better internet experience.
For example, a video meeting and online games can be smoother on a DMZ host.

When a computer is set as a DMZ host, it is completely exposed to the internet, which means that
the computer will not be protected by the firewall of the router.

A DMZ host can be easily used by hackers to attack the local network. Do not set DMZ host
randomly.

Security software, anti‐virus software and system firewall may affect the DMZ function. Please
disable these safety measures during the use of DMZ function.
Parameter
DMZ Host
9.3.2 Access the LAN with an IP address from the internet
Network requirement
Assume that you have a FTP server under the LAN of the router, and you want to share the
resources on the server to allow family members to access those resources from the internet.
Solution
You can meet the requirement with the DMZ host function.
Assume that:

The IP address of the FTP server: 192.168.0.101.
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The MAC address of the host of the FTP server: D4:61:DA:1B:CD:89.

The service port of the FTP server: 21.
Description
It specifies the IP address of the device that is set as a DMZ host.
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