MAC address – Media Access Control address

Short for Media Access Control address, a hardware address that uniquely identifies each node of a network. In IEEE 802 networks, the Data Link Control (DLC) layer of the OSI Reference Model is divided into two sub-layers: the Logical Link Control (LLC) layer and the Media Access Control (MAC) layer. The MAC layer interfaces directly with the network medium. Consequently, each different type of network medium requires a different MAC layer.

On networks that do not conform to the IEEE 802 standards but do conform to the OSI Reference Model, the node address is called the Data Link Control (DLC) address.

How to Find a MAC Address

To display your MAC address on a Windows NT/2000/2003/XP/Visa computer:

In the “ipconfig /all” results look for the adapter you want to find the MAC address of. The MAC address is the number located next to “Physical Address” in the list.

See “What Is a MAC Address?” in Webopedia’s Quick Reference section to learn how to find a MAC address, identifying unknown devices and more.
Also see a
breakdown of the seven OSI layers in the Quick Reference section of Webopedia.
Learn more about ipconfig.

Vangie Beal
Vangie Beal is a freelance business and technology writer covering Internet technologies and online business since the late '90s.

Top Articles

List of Windows Operating System Versions & History [In Order]

The Windows operating system (Windows OS) refers to a family of operating systems developed by Microsoft Corporation. We look at the history of Windows...

How to Create a Website Shortcut on Your Desktop

Website Shortcut on Your Desktop reviewed by Web Webster   This Webopedia guide will show you how to create a website shortcut on your desktop using...

What are the Five Generations of Computers? (1st to 5th)

Reviewed by Web Webster Each generation of computer has brought significant advances in speed and power to computing tasks. Learn about each of the...

Hotmail [Outlook] Email Accounts

Launched in 1996, Hotmail was one of the first public webmail services that could be accessed from any web browser. At its...

What Is Training Data?

Training data is used to increase the accuracy of machine learning algorithms with...

GRC

Governance, risk, and compliance (GRC) refers to a company’s strategy for managing the...

Roll Your Own Crypto...

Cryptocurrency has quickly become a digital...