Thank you, blues. No, you are not telling me things I know. In fact, this is probably the point where I got lost so many times in the past. When I now browse through my router settings and books again, things start to make sense. I hesitate to try out all the suggested changes yet, but I'll due that soon. I also have about a hundred new questions now, but let me do my own homework first.

Allright then, just one more tiny question. You mentioned the ifconfig/ipconfig. My laptop is an Eee PC with its original Xandros Linux, but that hasn't got neither. Doing an apt-get attempt terminates with a message that the package couldn't be found. Is there an alternative?