20010406 Lockergnome Tech Specialist IEEE OUI and Company_ID Database
Every device on a network must be uniquely identified at later 2 of the OSI Reference Model. This identification comes in the form of a Media Access Control (MAC) address consisting of 6 hexadecimal octets (48 bits). All network cards produced by a manufacturer are assigned a permanently installed address to ensure that no two devices occupy the same address on the network. Using the first 3 octets of the MAC address, commonly referred to as the Organizationally Unique Identifier (OUI), you can locate the manufacturer of a particular network device with the help of this online database. This can come in handy when performing network analysis. With some practice, you'll be able to identify certain types of devices by their OUI, which can aid in locating the source of a problem.


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