ARP spoofing — also known as ARP poisoning — is a type of man-in-the-middle attack where an attacker sits between a targeted victim and the router to listen in on their online traffic. This is a form of cyber attack carried out over a local area network (LAN) that involves sending malicious address ARP packets to a default gateway on a LAN in order to change the pairings in its IP to media access control (MAC) address table. Address resolution protocol (ARP) translates IP addresses into MAC addresses. Confused yet? You won’t be for long since, by the end of this post, you’ll not only understand ARP spoofing, but be able to demonstrate it. And as a result, you’ll even learn how to protect yourself against these attacks.

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