the darknet is an 'underground network' of openvpn links with ip routing. there is in place a dns system and the ability to host just about
whatever the hell you want on just about any type of protocol you want. it uses a bogon range so as not to interfere with the internets as well
as your own rfc1918 network at home/work. stop by the darknet and give it a looksee, i think you'll find
yourself right at home.