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Knowledge document #1167

Setting up the FRITZ!Box for use with a fiber optic connection

You want to use the FRITZ!Box with a fiber optic modem? ✔ It's easy with this guide.

You can also use your FRITZ!Box with an additional fiber optic modem on a fiber optic connection (Fiber to the Home, FTTH).

Since the FRITZ!Box establishes and controls its own internet connection over the fiber optic modem, all FRITZ!Box functions (such as firewall, parental controls) are also available without restriction in this operating mode.

1 Connecting FRITZ!Box with the fiber optic modem

  1. Insert one end of a network cable into the "WAN" port on the FRITZ!Box. Use the network cable supplied with the FRITZ!Box, for example.
  2. Insert the other end of the network cable into the LAN port on the fiber optic modem (ONT, Optical Network Termination).

2 Configuring the internet connection in the FRITZ!Box

  1. Open the FRITZ!Box user interface.
  2. Enter the FRITZ!Box password given on the type label of the FRITZ!Box and click "Log In".
  3. Click "Internet" and then "Account Information".
  4. Select "DSL or fiber optic modem" from the drop-down list "Internet connection via".
  5. If your internet service provider is displayed in the drop-down list, select your provider and enter the account information you received from your internet service provider in the corresponding fields.
    • If your internet service provider is not displayed:
      1. Select "other internet service provider".
      2. Enter the account information you received from your internet service provider in the relevant fields. If account information is not required, enable the option "No".
      3. Enter the speeds of your internet connection in the "Downstream" and "Upstream" fields.
      4. If your internet service provider requires you to use a particular VLAN ID, click "Change Connection Settings", enable the option "Use VLAN for internet access", and enter the VLAN ID.
  6. Click "Apply" to save the settings.

Now the FRITZ!Box uses the account information you entered to establish the internet connection. Then you can configure your telephone numbers in the FRITZ!Box and connect your wireless devices with the FRITZ!Box.

3 Setting up telephony in the FRITZ!Box

If you want to connect telephones to the FRITZ!Box and use them to make calls over the internet:

  1. Configure the internet telephone numbers in the FRITZ!Box.



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