6 Dec
2019
6 Dec
'19
5:09 a.m.
On Thu, Dec 05, 2019 at 11:34:48AM +0100, Paul Ruizendaal wrote:
I’m looking for the origins of SLIP and PPP on Unix.
Both seem to have been developed long before their RFC’s appeared.
As far as I can tell, SLIP originally appeared in 3COM’s UNET for the PDP11, around 1980.
From the TUHS Unix tree, first appearance in BSD seems to be 4.3 (1986).
Not sure when PPP first appeared, but the linux man page for pppd has a credit that goes
back to Carnegie Mellon 1984. First appearance in BSD seems to be FreeBSD 5.3 (2004),
which seems improbably late (same source).
Yes, I remember doing CMU pppd v1.4 or so on SunOS v4.x in the
1991-1994 time period. SL/IP was more prevelent because it was easier to find devices
doing it.
Version 2.x of the package started adding support into Linux/*BSD when they started
appearing.
I don't think the current repo (https://ppp.samba.org/) has much of the earlier v1.x
history.