MAC addresses are formed according to the rules of one of three numbering name spaces managed by the Institute of Electrical and Electronics Engineers (IEEE): MAC-48, EUI-48, and EUI-64. This can be contrasted to a programmed address, where the host device issues commands to the NIC to use an arbitrary address.Ī network node may have multiple NICs and each must have one unique MAC address per NIC. It may also be known as an Ethernet hardware address ( EHA), hardware address or physical address. If assigned by the manufacturer, a MAC address usually encodes the manufacturer's registered identification number and may be referred to as the burned-in address ( BIA). MAC addresses are most often assigned by the manufacturer of a network interface controller (NIC) and are stored in its hardware, such as the card's read-only memory or some other firmware mechanism. Logically, MAC addresses are used in the media access control protocol sublayer of the OSI reference model. MAC addresses are used as a network address for most IEEE 802 network technologies, including Ethernet. MAC address A media access control address ( MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment. Uses several databases including NMAP, IEEE Official List, Wireshark Info, and more.

Partial searches are accepted: 001c, 2359:92.Manufacturers of networking equipment always useġ000-bit kilobits as their basic unit of measurement.Discover which company built a networked interface by MAC Address. In computer networking the conventional SI decimal units are followed. While computer operating systems usually calculate drive/file/RAM size in binary gigabytes (2 30). Whether values are calculated using the decimal or binary systems depends on the context.įor example, most hard disk drive and flash-memory manufacturers define 1 gigabyte as a million bytes (decimal gigabyte, 10 9), However, the terms Bytes, Megabytes and Gigabytes are often used ambiguously. This conversion calculator rounds all values to 9 significant digits.īecause of computer architecture and memory address boundaries, bytes are usually some multiple or exponent of two. Notes: Keep in mind in data communication 1 kilobit = 1000 bits, while in data storage 1 Kilobyte = 1024 Bytes.

Convert mac address into bytes