If you have more than two interfaces listed for Ethernet and are unsure which is the correct one, look for the entry that has the Link Status set to Active (excluding the 'WiFi' interface. Note: The name of the network interface will depend on what type of adapter you are using, but should contain the word 'Ethernet' for example, a Thunderbolt adapter may be listed under the name 'Thunderbolt Ethernet'. Physical or MAC Address) of your computer Click Start, then Run, type CMD in the text box and click OK Type in. Both your MacBooks wireless and Ethernet network interfaces have 12-digit MAC addresses that help identify the computers networking hardware on your.An Ethernet MAC address is a 48-bit binary value expressed as 12 hexadecimal digits (4 bits. at the toolbar at the bottom of the screen click on the System Preference icon then click on Network in the Show pulldown menu select Build in Ethernet for. This is the address that will need to be registered for housing network connections. As you may recall, MAC addressing is added as part of a Layer 2 PDU. The MAC Address will be shown next to Physical Address, as shown in the example below. STEP 1 Your first step should be to look at the router itself, as the MAC address could be listed on a sticker along with the default network. Navigate until you see the section Wireless LAN adapter Wi-Fi. The Hardware Address listed is the MAC address of your adapter. Here are the steps to find a MAC address. Under the Info tab, select the applicable network interface from the dropdown menu. Begin typing Network Utility until it auto-completes, then press Enter or click on the application name to open it.

The leftmost six digits (24 bits), called a prefix, are associated with the adapter manufacturer (M). In your Mac's menu bar, click on the magnifying glass icon to open a Spotlight search. By convention, these addresses are usually written in one of the following three formats, although there are variations: MM:MM:MM:SS:SS:SS. With an Ethernet cable plugged into your data jack, connect your Ethernet adapter to the other end of the cable, then plug the Ethernet adapter into one of the laptop's USB or Thunderbolt ports, depending on which type of adapter you are using.

What is my ethernet mac address