BroadMobi R520, Руководство пользователя

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R520
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When some hosts inside the private network have already allocated the local IP address, that is,
only the private address used in the private network, but now they want to communicate with the
host on the Internet (no need to encrypt), we can use the NAT method.
In the NAT option, NAT Type is selected, please refer to:
https://en.wikipedia.org/wiki/Network_address_translation
When you need to set the specified device ip and port, just configure it under the "Entries" tab.
The router turns on the VPN service by default, and the VPN protocol supports IPSE/PPTP/L2TP.
After Webserver WWAN Access is turned on, you can log in to the management page through the
WAN port.
3.8.3 DMZ
Receive all the data from external network interface forwarded to “DMZ IP address”
Enable DMZ : If an application has trouble working from behind the router, you can expose one
computer to the Internet and run the application on that computer.
Note: Placing a computer in the DMZ may expose that computer to a variety of security risks. Use
of this option is only recommended as a last resort.
DMZ Address : Specify the IP address of the computer on the LAN that you want to have
unrestricted Internet communication.