ARP poisoning If an attacker changed the network gateway's MAC address to an incorrect one so that no users can access external networks, the attack is being carried out.
<h3>What is the MAC address of a device?</h3>
A network interface controller (NIC) is given a media access control address (MAC address), which it can use as a network address in communications inside a network segment.
Ethernet, Wi-Fi, and Bluetooth are just a few of the IEEE 802 networking technologies that frequently employ this application. Your home network's devices each have a distinct MAC address.
Each network adapter on your computer that has its own MAC address, such as an Ethernet adapter and a wireless adapter.
