![]() ![]() In essence, the MAC address's OUI portion tells you who made the card, and the NIC portion tells you which specific card it is. It's akin to a unique serial number that, when combined with the OUI, ensures that every networked device has a distinct MAC address. This part is unique to each individual device that the manufacturer produces. The second half of the MAC address is the NIC, which is assigned by the manufacturer. Since organizations must register to get an OUI, this section of the MAC address can be used to trace the device back to the company that made it. This part of the address identifies the manufacturer or organization that created the network interface card. The OUI is the first half of the MAC address, typically the first six characters (such as "00:A0 " for Intel). The MAC address is set by the manufacturer when the device is made, akin to the "place of birth" information on your birth certificate, which is why it's sometimes referred to as a "hardware address" or "physical address." This address is usually embedded in a small chip on the device, much like the information on your ID card is hard to alter. For instance, "00-B0-D0-64-C1-36" is an example of a MAC address. Composed of 12 alphanumeric characters, this address is typically divided into six pairs, which may be separated by colons, dashes, or not separated at all. How can I find out my own MAC and IP addresses?Įvery device that connects to the internet, like your computer or smartphone, has a special identification number-this is the "MAC address." It acts as a permanent tag, helping the internet know where to deliver data.Can a device have multiple IP addresses?.Is it possible for two devices to have the same IP address?.What are the Differences Between MAC and IP Address. ![]()
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