FRITZ!Box 7340 Service - Knowledge Base

FRITZ!Box 7340 Service

Restricting wireless access to known devices (MAC address filter)

The FRITZ!Box's wireless network (WiFi) is already protected against unauthorized access by individual wireless 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 addresses in each data packet they send, attackers can easily determine a MAC address that can be used to login. Therefore, the MAC address filter alone does not provide sufficient protection from undesired access and is only suitable as a supplementary measure for secure wireless encryption.

Requirements / Restrictions

  • The MAC address filter does not apply to wireless devices that use the FRITZ!Box's wireless guest access.

Important:Some of the settings described here are only displayed if the advanced view is enabled in the user interface. The configuration procedure and notes on functions given in this guide refer to the latest FRITZ!OS

1 Enabling the MAC address filter

  1. Click "Wireless" ("WLAN") in the FRITZ!Box user interface.
  2. Click "Radio Network" in the "Wireless" ("WLAN") menu.
  3. Enable the option "Do not allow any new wireless devices".
  4. Click "Apply" to save your settings.

Now only wireless devices listed under "Known Wireless LAN Devices" are allowed to connect to the FRITZ!Box's wireless network.

2 Adding a new wireless device

When the MAC address filter is enabled, you can disable it briefly so that the FRITZ!Box can automatically add the MAC address of a wireless device, or enter the MAC address manually:

Adding the wireless device automatically

  1. Click "Wireless" ("WLAN") in the FRITZ!Box user interface.
  2. Click "Radio Network" in the "Wireless" ("WLAN") menu.
  3. Enable the option "Allow all new wireless devices".
  4. Click "Apply" to save your settings.
  5. Connect the wireless device to the FRITZ!Box's wireless network.
  6. Enable the option "Do not allow any new wireless devices".
  7. Click "Apply" to save your settings.

Adding the wireless device manually

  1. Click "Wireless" ("WLAN") in the FRITZ!Box user interface.
  2. Click "Radio Network" in the "Wireless" ("WLAN") menu.
  3. Click "Add Wireless Device".
  4. Enter the MAC address of the wireless device.
  5. Click "Apply" to save your settings.