This enables you to strip down a AVM FRITZ!Box firmware image so it functions as a DSL modem (PPPoE bridge). The generated image is about 1.4 MB. The advantage compared to the standard firmware is that the kernel DSL daemon isn't running, which means that packets are only forwarded and not inspected. When the kernel DSL daemon runs, the box can easily do a watchdog reboot because of a box working at full capacity when the transfer rates / connections are high.
Edit the conf/startup.conf and set the desired values. After this execute ./fritz-modem which will create the image. The generated image will be in output/fritz-modem.image.
