Method used to configure the authorized ARP on USG firewalls

After the Authorized Address Resolution Protocol (authorized ARP) is enabled, the DHCP server automatically adds an ARP entry that contains the MAC address and IP address of the client to the ARP mapping table when successfully allocating an IP address to the client. In this way, the attacks to the network by forging IP addresses or MAC addresses of other legal DHCP clients are prevented, and the network security is improved.
The authorized ARP is valid only on devices that enable the DHCP server function. The authorized ARP is only applicable to the networking on which the DHCP server and DHCP client are in the same network segment instead of the DCHP relay networking.
To enable the authorized ARP, run the dhcp arpbind enable command in the system view. By default, the authorized ARP is not enabled on the device.

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