The new installs of Belgacom’s DSL internet connection are actually fairly descend. They provide a “b-box 2” which provides 2 wired 10/100base-T ports and an 802.11g access point. It consumes 10.1W of power once booted (21VA with a cosφ of .47, measured with 241Vac), which costs around €22/year at the current prices. The box has a built-in router which performs the PPPoE connection and does the NAT. While this setup is perfectly fine for a regular setup, obviously I wanted something more…
So I wanted my own router to establish the PPPoE connection and obtain a public IPv4 address. It seems that even here the default setup of the b-box2 is good: PPPoE passthrough is enabled by default. This technique allows you to establish a PPPoE connection from the “LAN”-side of the router, effectively bypassing it. There are RFC 1483 bridge-mode, but this is not required! So just plugging in my router and configuring PPPoE on it was enough!how to reconfigure the b-box into
There are some finishing touches however that can be learned from the bridge-posts:
- I disabled my PPPoE connection on the b-box itself. I will not be using it, so there is no need to waste a public IPv4 address here.
In the webinterface (http://192.168.1.1/ by default) go to Advanced Settings – Network Interfaces. Open the Wan PPPoE and Disable it, confirm by clicking OK.
- I also disabled the built-in WiFi access point, since I have my own 802.11n access point right next to it. This is even officially documented.
Advanced Settings – Wireless and click Deactivate.