The second half of a MAC address represents the serial numberĪssigned to the adapter by the manufacturer.Ĭontrast MAC addressing, which works at Layer 2, with IP addressing, These IDs are regulated by an Internet standardsīody. The first half of a MAC address contains the ID number of theĪdapter manufacturer. MAC addresses are usually written in one of these formats: A MAC algorithm acceptsĪs input a secret key and an arbitrary-length message to be authenticated,Ī MAC address is a 12-digit hexadecimal number (48 bits in long). That are assigned to all ports on a switch. Identify one another at the data link layer, by using the MAC addresses In Layer 2, multiple devices on the same physical link can uniquely This channel may provide unicast, multicast,
The MAC sublayer emulates a full-duplex logical communication channel The MAC sublayer acts as an interface between the logical linkĬontrol (LLC) Ethernet sublayer and Layer 1 (the physical layer). Several terminals or network nodes to communicate in a network. Provides addressing and channel access control mechanisms that enable In Layer 2 of a network, the Media Access Control (MAC) sublayer If your computer has an ethernet connection port or adapter (where you can connect to a network with an ethernet cable), you will see Ethernet adapter in the results, and you will need to register the Ethernet adapter MAC address, as well, if you intend to use it.This topic provides an introduction to the MAC sublayer When locating MAC address information, you will see Wireless LAN adapter Wi-Fi, which contains the wireless MAC address information that must always be registered. What is the difference between a wired (ethernet) MAC address and wireless MAC address? The Wireless MAC address is necessary for registering your computer for use on the eduroam wireless network. If you have any questions, please contact the EIT Service Desk.Ī MAC address is a combination of 12 letters and numbers which uniquely identify a computer. This is the wireless MAC address for your computer.
Here is how to find the MAC address on your computer:
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