[TUHS] System III - TCP/IP

Oliver Lehmann lehmann at ans-netz.de
Sun Nov 8 05:03:58 AEST 2015


i have an old Z8001 based SysIII variant and I would love to have
TCP/IP on it (SLIP first, later with a homebrew ethernet device).

I wonder if someone ever saw TCP/IP available on a System III?

I have lets say 90% of the kernel running on it as source
available and I started digging in the available 4.2 BSD sources.

It looks like there would be much to do to hack in TCP/IP on my
own (no IPC, no Net, no PTY, no....).

I got K5JB running (userland TCP/IP implementation) after I fixed
some C code because the C Compiler available on the system is.....
kinda limited.

telnetd is of course not working as there are no pseudo-teletypes
on this SYSIII. At least I got ping, echoping and ftpd up and
running via SLIP

( is my SysIII box:)

# ping -c3
PING ( 56 data bytes
64 bytes from icmp_seq=0 ttl=254 time=316.317 ms
64 bytes from icmp_seq=1 ttl=254 time=297.328 ms
64 bytes from icmp_seq=2 ttl=254 time=296.369 ms

--- ping statistics ---
3 packets transmitted, 3 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 296.369/303.338/316.317/9.186 ms
# ftp
Connected to
220  FTP version K5JB.k37 ready at Tue Apr 30 22:25:47 1991
Name ( test
331 Enter PASS command
230 Logged in
ftp> get sa.timer
local: sa.timer remote: sa.timer
500 Unknown command
500 Unknown command
200 Port command okay
150 Opening data connection for RETR sa.timer
   2571       0.53 KB/s
226 File sent OK
2571 bytes received in 00:05 (0.48 KB/s)
ftp> get wega
local: wega remote: wega
200 Port command okay
150 Opening data connection for RETR wega
  98723       0.51 KB/s
226 File sent OK
98723 bytes received in 03:05 (0.51 KB/s)
ftp> exit
221 Goodbye!

So I wonder if someone got anything SYSIII -> Net/TCP/IP related
which could help me in any way to get a SYSIII kernel capable of
TCP/IP and PTYs to get a telnetd up and running via SLIP is my
first goal.


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