EuroBSDCon 2025

Beni Keller

Professionally I mostly wrestle penguins an the odd networking device. I work for a Cantonal administration in Switzerland in a team which aims to build a new network where as many services as possible are run on IPv6 only. I'm currently working on DNS, monitoring and DDI in general.

Everything I run privately is running on a flavor of BSD - to get some diversity. If I am not on a computer I spend my time outdoors, climbing mountains, ski touring, cycling or unicycling.


Session

09-28
11:30
45min
The OpenBSD IPv6-only home-router challenge
Beni Keller

Last Christmas holidays I decided to switch my home network to IPv6 only using DNS64 and NAT64. Additionally I wanted to set up a wifi using dual stack and DHCP Option 108 (IPv6-mostly).

Since the OpenBSD documentation is known for its quality I decided to set myself the challenge of setting this up without using the internet, solely by reading manual pages and example configurations on a freshly installed OpenBSD, without installing any additional packages. In my talk I'll tell you about how this went touching on:

  • a brief intro what DNS64, NAT64 and DHCP Option 108 are;
  • what my home setup looks like (living in a part of Switzerland where you still have to rely on VDSL to get native IPv6);
  • how far I got without using any OpenBSD packages;
  • what services I used, what their config looks like and whether I was able to configure it without consulting internet resources.

In the end you should know how to set up a IPv6 only network. On the way I hope to convince you why you should do this - not only at home but also at work.

OpenBSD
D2