Use Fritzbox as an OpenVPN gateway - how it works

Step 1: Preparations for the OpenVPN gateway under Firefox

Before you can get started, you have to make some preparations in the Fritzbox:

First log into the Fritzbox (//fritz.box/) and release the UDP port 1194. This is required for OpenVPN. We have summarized detailed instructions for the port release of the Fritzbox for you here.
You then have to assign a fixed IP to the Fritzbox.
So that the Fritzbox can also be reached from the web, click on "Internet" in the Fritzbox on the left and select "MyFritz". Create a new account and you can access your Fritzbox from anywhere.

Download and install the OpenVPN package on your PC.
After successful installation, open the command prompt with [Windows] + [R]. Switch to your desktop with "cd desktop".
Then create the key file for OpenVPN using "Open VPN --genkey --secret static.key" followed by [Enter].
Then copy this file into the OpenVPN folder. You can find this in the "Programs" folder.
Then you have to configure the settings. Open the editor.
Insert the following line there: "dev do ifconfig 10.8.0.1 10.8.0.2 secret static.key". Add "remote" at the top, followed by the address to your Fritzbox. You can find this in the Fritzbox under "Internet"> "Releases".
Save this file under the name "clients". Under "File types" select "All files". Then add them to the OpenVPN directory.

In order for OpenVPN to work properly, you must also enable UPD port 1194 here. You can find detailed instructions in this practical tip.
You can now start OpenVPN by right-clicking on the "config" file in the program folder of OpenVPN and selecting "Start Open VPN on this config file".
Note: You must perform this action as an administrator, otherwise an error message will appear.

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