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So you should get MAC address of your laptop first of all and here's how. Fox example, you want your laptop connect to a wireless network which is MAC address authentication needed. Sometimes we need to know the laptop MAC address. Your computer's MAC address in conjunction with your IP address is used to provide you with the most secure service ITS can offer. Each MAC address is unique, and so identifies the network card you have installed in your computer. A MAC address is the equivalent to the serial number of a network card.
