A router holds this information in an ARP table where for each MAC address a local IP address is assigned. ![]() In many cases, there are multiple devices connected to the same network – laptops, phones or TVs, and in order for a router to know which internet packets belong to which device it keeps track of every device’s MAC addresses. This address never changes as it is burned-in by a manufacturer. It is used to identify a physical device (or hardware) such as a network interface card (or NIC) on a local network. E8:FC:AF:B9:BE:A2) and is unique to every device. MAC stands for Media Access Control which is an address that contains 12 symbols (ex. Let’s explore further what you need to know about it. ![]() It’s well known that a VPN can hide an IP address, but what about the MAC address? Can websites track it down or can it be seen on your router even when using a VPN? To answer these questions it is important to understand what the MAC address is and how do devices use it.
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