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MAC addresses uniquely identify a computer on the LAN. The MAC address is an important element of computer networking. Why would you need to know the MAC address of a device? If it has dual-band wireless capability, it will have a MAC address for each wireless band. If the computer has two Ethernet ports, it will have a MAC address for each Ethernet port. So if your laptop has both an Ethernet port and Wi-Fi built-in, you will see two MAC addresses in the system configuration.Įach network controller has its own MAC address. For each network interface in your device, there is a unique MAC address associated with it. an ethernet or wi-fi interface), so if there’s no network interface in the PC, there’s no MAC addresses.ĭoes each Ethernet port have its own MAC address? Sure – a MAC address is associated with a specific network interface device (i.e. How devices get their MAC or IP address?ĭoes a computer without a NIC have a MAC address?.Why do most laptops have 3 MAC addresses?.Why do switch ports have MAC addresses?.
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Does a network switch have a MAC address?.What is a network adapter physical address?.Is Wi-Fi address the same as MAC address?.What is the difference between IP address and MAC address?.Why do we need both MAC and IP address?.Why would you need to know the MAC address of a device?.Does each Ethernet port have its own MAC address?.Does every electronic device have a MAC address?.Does every computer have a MAC address?.Does a computer without a NIC have a MAC address?.