[ILUG] Re: new ethernet network

[Vincent Murphy]

= Vincent Murphy <theDon at cs.ucc.ie> [19991003 2015]:
[snip..]
> ..  for now i'd like to verify that the
> ethernet works, and if it does try something else.

 i think i've managed to verify that the ethernet is working.  i installed
tcpdump on the debian box, and did the following:

time   action
----   ------
22:10  on 192.168.0.100 (linux box):   `ping -c4 192.168.0.200'
22:11  on 192.168.0.200 (windows box): `ping 192.168.0.100'

 here's the tcpdump output (from the linux box):

22:10:23.866358 arp who-has 192.168.0.200 tell 192.168.0.100
22:10:24.859897 arp who-has 192.168.0.200 tell 192.168.0.100
22:10:25.859892 arp who-has 192.168.0.200 tell 192.168.0.100
22:10:26.860284 arp who-has 192.168.0.200 tell 192.168.0.100
22:10:27.859883 arp who-has 192.168.0.200 tell 192.168.0.100
22:10:28.859882 arp who-has 192.168.0.200 tell 192.168.0.100
22:11:14.534281 arp who-has 192.168.0.100 tell 192.168.0.200
22:11:14.534379 arp reply 192.168.0.100 is-at 0:60:8c:f4:d4:8d
22:11:15.909922 arp who-has 192.168.0.100 tell 192.168.0.200
22:11:15.909974 arp reply 192.168.0.100 is-at 0:60:8c:f4:d4:8d
22:11:17.409346 arp who-has 192.168.0.100 tell 192.168.0.200
22:11:17.409400 arp reply 192.168.0.100 is-at 0:60:8c:f4:d4:8d
22:11:18.909081 arp who-has 192.168.0.100 tell 192.168.0.200
22:11:18.909133 arp reply 192.168.0.100 is-at 0:60:8c:f4:d4:8d

>  should i try a crossover cable between the two NICs?

 i no longer intend on doing this, given what tcpdump told me.

 as yet, i still can't get these machines to ping each other, so i'm still
looking for help, except now my problem is narrowed down a bit i hope.
perhaps there's a problem with arp, but i haven't a clue how that works,
i just know that it's used for resolving ip addresses to ethernet addresses.

-vinny <hunting for arp docs>