This identifier forms the first 3 bytes (6 characters) of the MAC address for the manufacturer's network devices. If even the smallest address ranges assigned by the IEEE are to be searched, the first 5 bytes (20 characters) of your MAC address are required. Under Linux or macOS open a console/terminal window and enter (Linux) "ip link"  or (MacOS) "ifconfig /all" there. The MAC address may also be known as ethernet hardware address, hardware address, adapter address, or physical address of a computer or networking device. Is "releases mutexes in reverse order" required to make this deadlock-prevention method work? A media access control address (MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment. Every MAC address contains information about the vendor, so with the MAC address, you can find out the manufacturer of the given MAC address. IEEE global identifier standard that is associated with 48-bit MAC addresses. Solved! In this example, the IP address is 192.168.86.45, and its MAC address is 98-90-96-B9-9D-61. They are purchased and assigned by the IEEE. These identifiers consist of 24-bits for the organization identifier, and 24-bits for the extension identifier. It's important to note that the second half of the address is not always the serial number, so it might not work for warranty requests. Before 01.01.2014, an Individual Address Block (IAB) was available for this purpose, whereby this database is no longer maintained by the IEEE. To find MAC Address, see the instructions given below for popular operating systems. How do you set, clear, and toggle a single bit? If you have access to the DHCP Server, you can view all relationships with IPs, MACs, interfaces, name of the device, and lease time in your LAN. How to get mac address for an interface in linux using a C Program? @AkiraOkumura Good to beware of such type of system :). To learn more, see our tips on writing great answers. We had to do this a while back, but I don't think we got it working properly. How is it possible that a wpDiscuz