ARP spoofing is a common LAN virus. A PC infected with the virus sends broadcast packets with ARP spoofing to the LAN from time to time, interfering and damaging the normal communication among LAN machines. In severe cases, the entire network will be disrupted. The device protects its ARP cache and thus achieves its immunity by rejecting ARP requests or replies with attack signatures.

If a user of the device who is subject to access control has a bound IP/MAC address, the device will perform ARP spoofing protection based on the bound IP/MAC address.

Check Enable to enable ARP Spoofing Protection, and the configuration page is shown below.

MAC Broadcast Interval (secs): Set the interval for broadcasting the MAC address.