Dahua NVR52-4KS2 Series User Manual page 419

Step 2 Click to enable the firewall.
Step 3 Select a firewall mode.
Allow List : The hosts on the allowlist can access the Device.
●
Block List : The hosts on the blocklist are prohibited to access the Device.
●
Click Add and then select a type for the allowlist or blocklist.
Step 4
You can allow or prohibit hosts through a specific IP address, a network segment, or a
MAC address.
IP address.
●
Enter the IP address, start port and end port, and then click OK.
IP segment.
●
Enter the start address and end address, starting port and ending port, and then click
OK.
MAC address.
●
Enter the MAC address, and then click OK.
Figure 5-281 Firewall
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User's Manual