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What is an Ethernet Address and how to find out the Ethernet address of my network card?

To register your network card under the HKU Portal, you need to reveal the network card address of your PC:

For Windows 10:

  1. Right Click Windows Start Windows start to open the context menu. 
  2. From the menu, click “Run”, type cmd and then click OK
  3. On the black command window appears, type in ipconfig /all and hit the Enter key.
  4. Under the Ethernet adapter Ethernet section, look for Physical Address (it is the Ethernet address of the wired network card (connection using a UTP LAN cable)).
  5. To register the Ethernet address (12 characters without the hyphens), login HKU portal > Campus Information Services > Central IT Services > Register Network Cards.

    Note: the update would take 10 minutes to be effective. Each HKU member can register up to 5 network cards.

  6. To obtain a new IP address from the DHCP server, type in ipconfig /release and then type in ipconfig /renew.

For Windows 8:

  1. Click Windows Start Windows start to open the Start screen. 
  2. From the Windows Start screen, type cmd, press Enter when you see the program cmd.exe.
  3. Once a black command window appears, type in ipconfig /all and hit the Enter key.
  4. Under the Ethernet adapter Local Area Connection section, look for Physical Address (it is the Ethernet address of the wired network card (connection using a cable)).
  5. To register the Ethernet address (12 characters without the hyphens), login HKU portal > Campus Information Services > Central IT Services > Register Network Cards.

    Note: the update would take 10 minutes to be effective. Each HKU member can register up to 5 network cards.

  6. To obtain a new IP address from the DHCP server, type in ipconfig /release and then type in ipconfig /renew.

For Windows 7:

  1. Click Windows Start start.
  2. Under Search programs and files, type cmd and press Enter when you see the program cmd.exe.
  3. Once a black command window appears, type in ipconfig /all and hit the Enter key.
  4. Under the Ethernet adapter Local Area Connection section, look for Physical Address (it is the Ethernet address of the wired network card (connection using a cable)).
  5. To register the Ethernet address (12 characters without the hyphens), login HKU portal > Campus Information Services > Central IT Services > Register Network Cards.

    Note: the update would take 10 minutes to be effective. Each HKU member can register up to 5 network cards.

  6. To obtain a new IP address from the DHCP server, type in ipconfig /release and then type in ipconfig /renew.

For Macintosh (Mac OS X):

  1. Select System Preferences from the apple menu Apple menu at the top left of your screen.

    system preferences...

  2. Click Network from the System Preferences menu.

    network

  3. Choose Ethernet from the list of interfaces on the left and click Advanced button.

    Ethernet > Advanced

  4. Choose the Hardware tab under which you will see the MAC address of your Ethernet card.

    Mac address

  5. To register the Ethernet address (12 characters without the hyphens), login HKU portal > Campus Information Services > Central IT Services > Register Network Cards.

    Note: the update would take 10 minutes to be effective. Each HKU member can register up to 5 network cards.

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