Dynamic ARP Inspection (DAI)?

Dynamic ARP Inspection is a technique of inspecting the ARP packets on the network. This technique is used to detect any malicious activity happening on the network.
To make this work, we need to capture all the packets that are being exchanged between hosts in a segment of the network. Then, we use them to build up an ARP table. The table will show us which host has what IP address and vice versa.

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