Waveshare WS-431E User Manual page 45

WS-431E
4G Router
Figure 49 Firewall IP white list 1
In the jumped page, select "lan" as the source zone, and select "any" as the source MAC
address and source address (if it is a specific IP that allows a specific IP in the LAN to access the
external network, you need to fill in the IP address or MAC address here, one of which is "any" or
the IP address corresponds to the MAC address, otherwise it will not take effect), as shown in the
following figure.
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