(There are ways to spoof MAC addresses, but it’s harder than renaming “John Doe’s PC” to “JD’s Laptop. Manufacturers assign MAC addresses to different network adapters such as Wi-Fi radios and Ethernet controllers, while making sure that any device with connectivity has at least one.Īnd unlike the names people give their devices, these identifiers must be permanent. You may need this information for a variety of reasons, including creating a whitelist of devices that are allowed access. The best way to verify that you have correctly identified a particular device is to check its media access control (MAC) address. Most systems allow their owners to name them, which is why you often find “John Doe’s PC” or “Jane Doe’s iPhone” on a given Wi-Fi network, but those names are unreliable because they are easy to modify. Identifying devices on a network can be difficult. The MAC address for en0 will likely be labelled as "ether".How to Find Your MAC Address in Windows 11 – Guide #Įach device has a unique address if you know where to find it. On systems with just a wireless connection, en0 will be your wireless interface. A MAC address will be shown for both en0 and en1 and likely labelled as "ether". On systems with both an ethernet and wireless connection, en0 will be your ethernet interface and en1 will be your wireless interface.
You will be shown data on all your interfaces. Type ifconfig into the Terminal window and press the Enter/Return key. Launch Terminal from the Applications:Utilities folder. Choose Ethernet from the list of interfaces on the left and click the Advanced button.Ĭhoose the Hardware tab under which you will see the MAC address of your ethernet card. Press Cancel to return to the Network menu. Click Network from the System Preferences menu.Ĭhoose Wi-Fi from the list of interfaces on the left and click the Advanced button.Ĭhoose the Hardware tab under which you will see the MAC address of your wireless card.
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