The easiest way to find your computer’s MAC address is through System Preferences in the Network section. The first is super easy and requires you to go into System Preferences, while the second requires running a small line of code in Terminal. There are two ways to access your Mac’s MAC Address. This isn’t done to hide it from users but as a result of making more useful functions and information easily accessible.
How to Find Your MAC Address on MacBook?Ī Mac computer’s MAC address is pretty well hidden in the settings. Some devices, such as computers, allow you to change the MAC address, and the new one will not be recognized by the network. But here is where things get a little weird. To get it working, you must contact the cable company and get them to put the new MAC address in their system.Īlso, if you’ve ever used public Wi-Fi at a hotel or coffee shop and maxed out their allowed usage, they know this because of your MAC address. If you buy a new modem and try plugging it in, it will not work.
These devices have a preset MAC address, and it is registered with your cable company. An IP address can also be set to “dynamic,” so it will change at set intervals.Ī common use of a MAC address that you may be aware of is a cable modem. This is in part due to the fact that the MAC address is pre-programmed into a device versus being assigned like an IP Address. Therefore, an IP address is referred to as a logical address, while a MAC address is known as a physical address. While a MAC address is used for local identification, an IP address helps the device communicate globally. If a device such as a computer accepts both wired and wireless connections, it will have a different MAC address for each. This number is used by both wired and wireless devices. It is designed to be a permanent network identifier for a device. What makes a MAC address unique is that it doesn’t change. A MAC address is required for nearly all network security protocols. The ability to distinguish a device on a network isn’t only important it is also to maintaining network security. A MAC address is a major part of computer networking.
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