Not to be confused with Mac Address (YouTube channel).
Label of a UMTS router with MAC addresses for LAN and WLAN modules
A MAC address (short for medium access control address) is a unique identifier assigned to a network interface controller (NIC) for use as a network address in communications within a network segment. This use is common in most IEEE 802 networking technologies, including Ethernet, Wi-Fi, and Bluetooth. Within the Open Systems Interconnection (OSI) network model, MAC addresses are used in the medium access control protocol sublayer of the data link layer. As typically represented, MAC addresses are recognizable as six groups of two hexadecimal digits, separated by hyphens, colons, or without a separator.
MAC addresses are primarily assigned by device manufacturers, and are therefore often referred to as the burned-in address, or as an Ethernet hardware address, hardware address, or physical address. Each address can be stored in the interface hardware, such as its read-only memory, or by a firmware mechanism. Many network interfaces, however, support changing their MAC addresses. The address typically includes a manufacturer's organizationally unique identifier (OUI). MAC addresses are formed according to the principles of two numbering spaces based on extended unique identifiers (EUIs) managed by the Institute of Electrical and Electronics Engineers (IEEE): EUI-48—which replaces the obsolete term MAC-48—and EUI-64.
Network nodes with multiple network interfaces, such as routers and multilayer switches, must have a unique MAC address for each network interface in the same network. However, two network interfaces connected to two different networks can share the same MAC address.
A MACaddress (short for medium access control address) is a unique identifier assigned to a network interface controller (NIC) for use as a network address...
channel uploaded a video claiming that Apple refused to repair Sebastian's iMac Pro after Linus Tech Tips staff damaged it in a product teardown, a refusal...
MAC spoofing is a technique for changing a factory-assigned Media Access Control (MAC) address of a network interface on a networked device. The MAC address...
In computer networking, MACaddress filtering is a security access control method whereby the MACaddress assigned to each network interface controller...
1D-conformant MAC bridges. 802.11 wireless networks use the same MACaddresses for multicast as Ethernet. Broadcast address Reserved IP addresses The recommended...
permit the end user to customise the MACaddress, notably OpenWRT. Usage of the node's network card MACaddress for the node ID means that a version-1...
MACaddress. In Internet Protocol version 4 (IPv4) networks, broadcast addresses are special values in the host-identification part of an IP address....
The Address Resolution Protocol (ARP) is a communication protocol used for discovering the link layer address, such as a MACaddress, associated with a...
the address may be assigned to another device. Some DHCP implementations attempt to reassign the same IP address to a host, based on its MACaddress, each...
allocation, fixed address allocation, reservation, and MAC/IP address binding. An administrator maps a unique identifier (a client id or MACaddress) for each...
append(tx)/remove(rx) MACaddress The local network addresses used in IEEE 802 networks and FDDI networks are called MACaddresses; they are based on the addressing scheme...
destination device. A network switch is a multiport network bridge that uses MACaddresses to forward data at the data link layer (layer 2) of the OSI model. Some...
Protocol (IPv4) address from a computer network, when all it has available is its link layer or hardware address, such as a MACaddress. The client broadcasts...
interface's MACaddress using the modified EUI-64 format, but this method is now not recommended for privacy reasons.) Unique local addresses are addresses analogous...
MACaddress anonymization performs a one-way function on a MACaddress so that the result may be used in tracking systems for reporting and the general...
The physical gateway address is called the media access control(MAC) address or burned in address (BIA). The physical address is assigned when the device...
destined for. In a typical MAC flooding attack, a switch is fed many Ethernet frames, each containing a different source MACaddress, by the attacker. The...
learns the CE's MACaddress, storing it locally along with LSP routing information. It then checks the frame's destination MACaddress. If it is a broadcast...
networks including the Internet IPX address, in NetWare X.25 or X.21 address, in a circuit switched data network MACaddress, in Ethernet and other related...
(spoofed) Address Resolution Protocol (ARP) messages onto a local area network. Generally, the aim is to associate the attacker's MACaddress with the...
gateway IP address and answer ARP requests with the same MACaddress, thus achieving transparent default gateway failover. In the virtual MACaddress, Xs represent...
design, an address pool may be the availability of a set of addresses (IP address, MACaddress) available to an application that is shared among its users...
link-layer addresses (e.g. MACaddresses), because it does not support the broadcast addressing method, on which the functionality of the Address Resolution...
'Data Frames' using generated link-local IPv6 addresses instead of the Wi-Fi chip's fixed MACaddress. Prior to OS X Yosemite (OS X 10.10), and under...
destination and offers its own MACaddress as the (ostensibly final) destination. The traffic directed to the proxy address is then typically routed by the...
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