akkem writes "For a while now, we've been running out of IPv4 address space, resulting in more and more computers getting put behind NAT devices. That's fine for many computers, but what if you want that computer to be available as a server? As part of his PhD work, my friend Eugene has come up with a nifty solution, AVES, which enables any computer on the Internet to reach one or more servers placed behind a NAT. His approach is to give each server a unique name (via DNS), and to handle all the IP address translation automatically via an overlay network."
This looks somewhat similiar to virtual DNS, but taking it another step, and having the server route the requests behind itself instead of just handling it a little differently.