As long as you make clear that it has nothing to do with SixXS, because it does not ;) As for sharing pictures of setups, is that not done better with things like flickr or any other such site where the images are actually public, as then you could reference them from here. Or heck, try: Rate My Network Diagram There is also nothing SixXS-specific about these, you have an Ethernet or a tunnel to the outside world and then you have your topology which will be IPv4 and IPv6.