Network Setup w/Digital DC21041 Tulip

Kaitlin R. Silver (kait@dreamscape.org)
Tue, 25 Nov 1997 10:36:03 -0800 (PST)

Okay, i'll start it off. I have a smc card that uses the dec 21041
chipset. The w95 machine is just a intel etherexpress 16, all setup a-ok.

On with the show..

tulip.c:v0.86B 11/14/97 becker@cesdis.gsfc.nasa.gov
eth0: Digital DC21041 Tulip at 0x7c80, 21041 mode, 00 00 c0 99 72 d3, IRQ 12.
eth0:21041 Media information at 30, default media 0800 (Autosense).
eth0: 21041 media #0, 10baseT.
eth0: 21041 media #4, 10baseT-FD.

I use v0.86B, and that's the snippity snip of my bootup.

The topography of my network is the easiest possible...
LINUX MACHINE = 198.162.0.50
WIN95 MACHINE = 198.162.0.100

I dont have a hub, and I bought a good quality crossover cable.

I start up my ifconfig w/..
ifconfig eth0 198.162.0.50 pointopoint 198.162.0.100 up

Which, at this time, the network lights go "Woowoo! HI there!" and they
turn green.

and then I do my routing w/..
route add 198.162.0.100 eth0

Everything should work right now, correct? Nope, I guess not. Look at
this.

root@dSC:/digital# ping 198.162.0.100 -c 25
PING 198.162.0.100 (198.162.0.100): 56 data bytes
--- 198.162.0.100 ping statistics ---
25 packets transmitted, 0 packets received, 100% packet loss

Which kinda made me curious. So, I ran tcpdump -i eth0
and... viola.. I got these results

root@dSC:~# tcpdump -i eth0
tcpdump: listening on eth0
10:31:39.887117 arp who-has 198.162.0.100 tell 198.162.0.50
10:31:44.883816 arp who-has 198.162.0.100 tell 198.162.0.50
10:31:49.883810 arp who-has 198.162.0.100 tell 198.162.0.50
10:31:54.883820 arp who-has 198.162.0.100 tell 198.162.0.50
10:32:35.596246 b5:0:2f:0:20:0 ad:0:11:0:26:0 ef00 60:
4300 5600 5400 2600 f000 7200 b300 9900
fd00 ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff
10:32:54.883821 arp who-has 198.162.0.100 tell 198.162.0.50
10:33:40.732976 b5:0:2f:0:20:0 ad:0:11:0:26:0 ef00 60:
4300 5600 5400 2600 f000 7200 b300 9900
fd00 ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff

Which leads me to my final conclusion. What the heck is going on, and what
is the next step to getting my mini-lan going here ;)

Thanks for your time all,
-kait

. .
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