MAC address


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Related to MAC address: IP address

MAC address

The hardware address of a device connected to a shared network medium. See also Media Access Control.

MAC address

(Media Access Control address) The unique 48-bit serial number in the network circuitry of Ethernet and Wi-Fi devices that identifies that machine from every other globally. Also used in earlier Token Ring networks, the ID is assigned to vendors by the IEEE and "burned into" most network adapters (NICs) at the time of manufacture. However, some NICs are programmable, and the possibility of having the same MAC address is theoretically therefore not impossible. See MAC layer, OUI and binary values.


Logical IP and Physical Ethernet
Each machine in an IP network has an IP address assigned temporarily by software (see DHCP) or permanently by the network administrator. The physical address is assigned by the manufacturer of the hardware. See IP address.







Wireless MAC Addresses
Smartphones have unique MAC addresses for Wi-Fi and Bluetooth as in this iPhone example. Like Ethernet, Wi-Fi also requires an IP address, which can be viewed in Settings. Bluetooth does not use IP addresses.
References in periodicals archive ?
If a user chooses to use their smartphone or mobile device as a Wi-Fi access point, their MAC address may also be included as a part of our service.
The IP address of the SIP client(IP_c), MAC address of the client (MAC_c) and the MAC address of the intermediate gateway(MAC_g) will be stored in those tables.
Once you have compiled a list of authorized MAC addresses, use the setup software to access your router's MAC address control table (see Exhibit 3).
All traffic went through that cable to all computers, each of which checked to see if its unique MAC address was listed as the one that should use the data packet.
SECURITY: Wireless security (WEP) configurable for 40-bit and 128-bit encryption; MAC address filtering; NAT firewall; support for RADIUS
The destination IP, or Layer 3, address can be used instead of the MAC address as a port selection method for outbound transmission.
Trusted MAC Address Forwarding - the ability to both notify the network manager and lock out an unauthorized user trying to connect to a port.
A MAC address is a unique identifier of the network card assigned to the device by its manufacturer.
Before Sharp Labs installed WiSentry, they used MAC Address Control Lists set up on each wireless access point to watch the network.
TCO can not only show all PCs currently running a TCO agent, but also auto-discover other systems on the LANor WAN, providing information such as IP address, MAC address and more.
The devices can be ordered when needed without volume restrictions and, because they eliminate the need for designers to burn a unique MAC address into every microcontroller (MCU), they enable quick integration and shorter time-to-market at lower costs.