response 9 of 13:

Jan 6 01:17 UTC 2007

SLIP seems cleaner than PPP, especially since the payload is
strictly IP.  I have used PPP with a modem before, but never
over a direct cable connection.  I'll keep it in mind as a
potential future experiment though.

I got SLIP working between two hosts by making ifconfig.sl0
files in each machine's /etc directory containing...

   ! /sbin/slattach -h -s 115200 /dev/tty00
   inet 192.168.3.128 192.168.3.129 up

           ...but with the IP addresses reversed at one end.