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Why do I need to know my MAC address?
What is a MAC address?
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Why do wireless access points use MAC addresses?
Why do DHCP servers use MAC addresses?
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 30, 2024 · The MAC address is used by the Media Access Control (MAC) sublayer of the Data-Link Layer. MAC Address is worldwide unique since millions of network devices exist and we need to uniquely identify each. A MAC address uniquely identifies network interfaces.
Jan 31, 2019 · MAC addresses are commonly used to identify your device when connecting to a network. Routers can filter out MAC addresses they don’t recognize. It’s useful to know the MAC address of your device to ensure it connects to the network properly.
Feb 20, 2019 · Much like IP addresses, MAC addresses can be a confusing concept for someone without a technical background. Nevertheless, in this article, we give you enough information about MAC addresses for you to understand what they are, why you need them, and how they are used.
Wireless access points often use MAC addresses for access control. They only allow access for known devices (MAC address is unique and identifies devices) with the correct passphrase. DHCP servers use the MAC address to identify devices and give some devices fixed IP addresses.
Jun 22, 2017 · Change a MAC Address in Windows. Change a MAC Address in Linux. Change a MAC Address in Mac OS X. A device's MAC address is assigned by the manufacturer, but it's not to hard to change---or "spoof"---those addresses when you need to. Here's how do do it, and why you might want to.
Jul 31, 2015 · MAC is required for a couple of reasons, the biggest of which is that IP addresses are not (necessarily) unique. Before a computer has an IP address, it typically requests one on the network by using a service called DHCP.