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   Why do I need a MAC address?

   • 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. At this point, the computer sends a broadcast message to the entire network saying “Hey, I don't have an IP address.

   networking - Why do we need MAC address? - Super User

   superuser.com/questions/948305/why-do-we-need-mac-address

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   What is a MAC address?

   • These MAC addresses---sometimes referred to as physical or hardware addresses---are assigned in the factory, but you can usually change the addresses in software. At the lowest networking level, network interfaces attached to a network use MAC addresses to communicate with one another.

   How (and Why) to Change Your MAC Address on Windows, Linux, and …

   www.howtogeek.com/192173/how-and-why-to-change-your-mac-address-on-windows-linux-and-mac/

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   Are MAC addresses permanent?

   • MAC addresses are assigned to all network adapters at the moment of their manufacture, and they are unique for each networking device. The MAC address of a network device is written by its manufacturer directly in that device's hardware read-only memory, and cannot be removed from there. And No, the MAC address is not permanent!

   What is the MAC address, and how is it used? - Digital Citizen

   www.digitalcitizen.life/simple-questions-what-mac-address-how-change-it-windows/

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   Why do we use MAC address instead of IP address?

   • This is used to intelligently move packets to the right port. It’s easier to use MAC address than IP address because a network card can have more then one IP address assigned to it at once, so it’s more efficient to store the MAC instead. There are other uses too.

   networking - Why do we need MAC address? - Super User

   superuser.com/questions/948305/why-do-we-need-mac-address

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   What is a MAC address on a network card?

   • In most cases, the MAC address on a network card does not change, so essentially the address identifies the physical piece of hardware. MAC addresses are necessary for routing data across networks. They don't contain user-identifiable information, and usually they aren't even visible outside of your local network.

   What is a MAC address, and what does it reveal about me?

   superuser.com/questions/187421/what-is-a-mac-address-and-what-does-it-reveal-about-me

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   How do MAC addresses work?

   • At the lowest networking level, network interfaces attached to a network use MAC addresses to communicate with one another. When a browser on your computer needs to grab a web page from a server on the Internet, for example, that request passes down through several layers of the TCP/IP protocol.

   How (and Why) to Change Your MAC Address on Windows, Linux, and …

   www.howtogeek.com/192173/how-and-why-to-change-your-mac-address-on-windows-linux-and-mac/

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2. www.howtogeek.com › 192173 › how-and-why-to-changeHow (and Why) to Change Your MAC Address on Windows, Linux ...

   www.howtogeek.com › 192173 › how-and-why-to-change

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   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.

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3. www.howtogeek.com › 761481 › how-to-find-your-macHow to Find Your MAC Address on Windows 10 or 11 - How-To Geek

   www.howtogeek.com › 761481 › how-to-find-your-mac

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   Oct 30, 2023 · Sometimes you need to know the physical hardware address, or MAC address (short for "Media Access Control"), of your network adapter on a Windows 10 or Windows 11 PC. Here are several ways to find it.

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     How to change Windows 10 MAC Addresses - WiFi and Ethernet

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     What is a MAC Address and How Do I Find It? | TechTarget

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5. www.howtogeek.com › 764868 › what-is-a-mac-addressWhat Is a MAC Address, and How Does It Work? - How-To Geek

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   Nov 16, 2021 · If you need to find the MAC address for your device, you can usually do it by going into the settings menu. You can follow our guide to finding the MAC addresses on your Windows device, whether by the Settings app or by the command prompt. It's also easy to find the MAC address on a Mac computer.

6. superuser.com › questions › 349579What can cause a MAC Address to change? - Super User

   superuser.com › questions › 349579

   Installing a new device, won't change the existing MAC address on your other card. It'll, it is a single 'emulated' network device. The only thing that can more likely to change your address is a driver update which happened to me many times during the past.

7. www.digitalcitizen.life › simple-questions-whatWhat is the MAC address, and how is it used? - Digital Citizen

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   Feb 20, 2019 · The MAC address of a network device is written by its manufacturer directly in that device's hardware read-only memory, and cannot be removed from there. And No, the MAC address is not permanent! Although the MAC address cannot be erased from a networking device, it can be spoofed.

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8. superuser.com › questions › 948305networking - Why do we need MAC address? - Super User

   superuser.com › questions › 948305

   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.

9. superuser.com › questions › 187421What is a MAC address, and what does it reveal about me?

   superuser.com › questions › 187421

   Jan 8, 2012 · A Media Access Control address (MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment. Logically, MAC addresses are used in the Media Access Control protocol sub-layer of the OSI reference model.