Gregory's ServerYes, that's more or less right. We used chaosnet at MIT, and that carried over to the lisp machines.
Chaosnet was a lot simpler to use, as I recall from the experince of writing network applications like 40 years ago.
IP-TCP was only just beginning to become popular in those days. We had chaosnet to IP-TCP bridges, basically routers that could speak either protocol. (And I have a hilarious story about an MIT network admin who didn't know the difference between a router & a bridge, and didn't know what a time-domain reflectometer was.)
Then around 1986 or so we had native IP-TCP on lisp machines.
Symbolics.com was in fact the first .com site on the internet.