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What is a MAC address?
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Sep 8, 2015 · MAC Addresses are 'burned' into the Network Interface Card (NIC) and cannot be changed. See ARP and RARP on how IP addresses are translated into MAC Addresses and vice versa. In order for a network device to be able to communicate, the MAC Address it is using must be unique.
Apr 7, 2018 · A MAC address is a 48 bit ID which used to be stored in a NICs ROM. That is, for some (old) network cards you would have one MAC per network card and those cannot be changed without replacing the network card.
A MAC address (short for medium access control address or media access control address) is a unique identifier assigned to a network interface controller (NIC) for use as a network address in communications within a network segment.
Sep 4, 2015 · See ARP and RARP on how IP addresses are translated into MAC addresses and vice versa. In order for a network device to be able to communicate, the MAC address it is using must be unique. No other device on that local network subnet can use that MAC address.
Nov 16, 2021 · MAC addresses work with the card in your device that lets it connect wirelessly to the internet, called a Network Interface Controller (NIC). MAC addresses are used to identify which device is which on your local network so that data gets sent to your computer and not your roommate's smartphone.
Sep 14, 2024 · There are three types of MAC address; unicast, multicast, and broadcast. Unicast MAC address. Unicast MAC address represents a specific NIC or onboard NIC ports in the network. The inbuilt MAC address of a NIC is the unicast MAC address of that NIC. Multicast MAC address. Multicast MAC address represents a group of devices (or NICs in Layer 2).
Mar 3, 2003 · Are MAC addresses really unique? Opinion. Mar 03, 20031 min. Networking. Are media access control addresses really unique? Or are there any (maybe cloned?) network interface cards that have...
