that's kind of what the mbone was, a tunnel overlay. it just look a lot of fussing around for too many years. the only reason that a tunnel is privileged is th

that's kind of what the mbone was, a tunnel overlay. it just look a lot of fussing around for too many years. the only reason that a tunnel is privileged is that it creates a kernel interface. given that we can't really use tcp anyways, there isn't any reason why the whole stack can't live in user space on a generic UDP port. you would have to have pim or torrent style discovery/rendezvous machinery aside from efficiency, I wonder what the use case is?