Attack Defense; Firewall - Dahua NVR21-4KS3 Series User Manual

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5.14.3 Attack Defense

You can configure the hosts that are allowed or prohibited to access the Device.

Select Main Menu > SECURITY > Attack Defense > Firewall .

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.

You can allow or prohibit hosts through a specific IP address, a network segment, or a MAC

● IP address.

Figure 5-282 Firewall

to enable the firewall.

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