FRITZ!Box 6890 LTE Service - Knowledge Base

FRITZ!Box 6890 LTE Service

Restricting Wi-Fi access to known devices (MAC address filter)

The FRITZ!Box's Wi-Fi network is already protected from unauthorized access by individual Wi-Fi security settings in its factory settings. With the FRITZ!Box's MAC address filter you can also specify which wireless devices are allowed to connect to the FRITZ!Box.

Since wireless devices transmit their unencrypted MAC address in every data packet, attackers can easily determine a MAC address that is allowed to connect. Therefore, the MAC address filter does not provide sufficient protection from undesired access and can only be used as a complementary measure.

Requirements / Restrictions

  • The MAC address filter does not restrict login to the Wi-Fi guest access.

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

1 Disabling the adoption of settings from the Mesh

If you are using the FRITZ!Box as a Mesh Repeater, you must first disable the adoption of settings from the Mesh:

2 Enabling the MAC address filter

  1. Click "Wi-Fi" in the FRITZ!Box user interface.
  2. Click "Security" in the "Wi-Fi" menu.
  3. Enable the option "Do not allow any new wireless devices" in the "Restrict access to Wi-Fi" section.
  4. Click "Apply" to save the settings.

Now only wireless devices listed in the section "Restrict access to Wi-Fi" are allowed to connect to the FRITZ!Box's Wi-Fi network.

3 Adding a new wireless device

To add the MAC address of a new wireless device to the list of "Known Wireless Devices", you can either temporarily disable the MAC address filter to automatically add the MAC address of the FRITZ!Box, or enter the MAC address manually:

  1. Click "Wi-Fi" in the FRITZ!Box user interface.
  2. Click "Security" in the "Wi-Fi" menu.
  3. Click "Add Wireless Device" in the section "Restrict access to Wi-Fi".
  4. Enter the MAC address of the wireless device.
  5. Click "OK" and then "Apply" to save the settings.