Select Hardware from the centered menu of the page. Your MAC address will be listed next to a field labeled with the same name.Select the Advanced button corresponding to the Built-in Ethernet or Network Adapter (depending on how you access the network).

Select Network from the System Preferences panel.Select System Preferences from the Apple menu located on the top left-hand corner.If your Linux OS does not have the ifconfig command, you may also use the ip addr command.The MAC address will be listed next to HWaddr. Open a terminal and use the ifconfig command.Instructions to properly identify the MAC address for each corresponding Operating System is listed below: Letters must also be capitalized on the form. Please always include the colons ( :'s) between the numbers. On Windows it will sometimes be represented with dashes between the numbers. The physical (MAC) address is an 8 byte number such as 08:00:20:9A:38:34. For that reason, the MAC address of a machine is required so that it can be properly configured for the engineering network. The MAC address is used to assign the TCP/IP address by means of DHCP (Dynamic Host Configuration Protcol). This is the actual hardware address that the lowest level of the network uses to communicate. Every network interface has a MAC address (Media Access Controller) also known as the physical address.

Linux C how to get MAC address