Hacker News new | ask | show | jobs
by mlyle 795 days ago
> how does the origin and all routers along the way

It's just the origin that needs to know what address(es) it should be using as the destination at layer 3.

The big problems with this is that it depends upon things that weren't really feasible in the early 80's -- bigger packet headers, a bit more state on each side of the connection, potential need for cryptographic authentication.