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Knowledge document #43

Determining the FRITZ!Box's MAC address

A MAC address (Media Access Control address) is the hardware address of a network interface (for example Wi-Fi) and serves as a unique identifier of a device in a network.

The MAC address at which computers or other devices can access the FRITZ!Box depends on whether the device is connected to the FRITZ!Box via a network cable or Wi-Fi.

Note:All instructions on configuration and settings given in this guide refer to the latest FRITZ!OS for the FRITZ!Box.

1 Determining the Wi-Fi MAC address

  1. Click "Wi-Fi" ("Wireless") in the FRITZ!Box user interface.
  2. Click "Wi-Fi Network" ("Radio Network") in the "Wi-Fi" ("Wireless") menu.
  3. Click "More Information on the Wi-Fi Network" and make note of the respective MAC address.

2 Determining the LAN MAC address

You can use a computer connected to a LAN port on the FRITZ!Box to determine the FRITZ!Box's LAN MAC address. The procedure depends on the operating system of the computer:

Windows

  1. Press the keyboard shortcut Windows key + R.
  2. Enter cmd in the "Open" field and click "OK".
  3. Enter nslookup fritz.box in the command prompt window and press Enter.
  4. Make note of the IP address of the FRITZ!Box displayed next to the entry "Address:".
  5. Enter arp -a [IP address of the FRITZ!Box] and press Enter.

    Example:
    arp -a 192.168.178.1

    Fig.: Using nslookup to determine the MAC address

  6. The MAC address of the FRITZ!Box is displayed under the entry "Physical Address".

macOS

  1. Open the Finder.
  2. Click "Applications" and then "Utilities".
  3. Open Terminal.
  4. Enter nslookup fritz.box in the Terminal and press Enter.
  5. Make note of the IP address of the FRITZ!Box displayed next to the entry "Address:".
  6. Enter arp [IP address of the FRITZ!Box] and press Enter.

    Example:
    arp 192.168.178.1

  7. The MAC address of the FRITZ!Box is displayed.

Linux

  1. Open Terminal. If you are using Ubuntu, you can open Terminal by pressing the keyboard shortcut CTRL + ALT + T.
  2. Enter nslookup fritz.box in the Terminal and press Enter.
  3. Make note of the IP address of the FRITZ!Box displayed next to the entry "Address:".
  4. Enter arp [IP address of the FRITZ!Box] and press Enter.

    Example:
    arp 192.168.178.1

  5. The MAC address of the FRITZ!Box is displayed.
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