In computer networking, a Media Access Control address, better known as MAC address, is a unique identifier assigned to a network adapter or network interface card (NIC) by the manufacturer for identification. The MAC address can also be called the Ethernet Hardware Address (EHA), hardware address, adapter address or physical address.
Determining your MAC or IP address On a computer network, a media access control (MAC) address is your computer’s unique identification number used by the network to identify your device, and your IP address is the online network address for your computer. The UW’s displays basic information about your network connection, and should contain your MAC and IP addresses. The following methods will help you manually determine what your MAC and IP addresses are depending on the operating system you are running.