You can choose either you need MAC Address in upper case or lower case.The tool allows you to select from the four most commonly used formats. Its maximum length must be six characters. To generate the MAC Addresses, perform the following steps. The MAC Address Generator allows you to generate the random MAC Addresses for testing purposes. How to use the MAC Address Generator to generate the random number of MAC Addresses? But, hardware devices from different manufacturers may share the same device identification address. All the devices manufactured by the same manufacturer have unique 24-bit numbers. The rightmost six digits (24 bits) are associated with device identification. What is a Network Interface Controller of the MAC Address?Ī Network Interface Controller is the part of the MAC Address that defines the device portion. The OUI of some well-known manufacturers are as follow For example, the prefixes 00-13-10, 00-25-9C, and 68-7F-74 (plus others) belong to Linksys (Cisco Systems). And it's common in large manufacturers to have more than one set of OUIs. Sometimes, manufacturers possess several prefix numbers associated with their products. The IEEE is responsible for OUI distribution and issues it to their registered manufacturers. It's the leftmost six digits (24 bits), also called prefixes, and is associated with the hardware manufacturer. What is an OUI MAC Address?Īn OUI (Organizationally Unique Identifier) is the part of the MAC Address that defines the hardware manufacturer. Note: Linux OS uses Colon-Hexadecimal notation, and Cisco Systems use Period-separated Hexadecimal notation.
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