Originally posted by Fringe:

What I don't fully understand is, why can my friends join my game via friendlist but I can not host a dedicated server? Where is the technical difference?

friendlist doesn't ask ISP for permission
it just joins using id of steam session

Originally posted by Fringe:

I also don't see the problem in general. Why can't I just use my IPv6 adress?

probably noone created *whatever is required for it to work* yet, since it's not popular


if someone makes it so it ignores steam and connects directly to IP... it might work, but probably noone will bother to make such mod :D