Try tcpdump during a ping to another node on the local subnet
tcpdump -i eth0 icmp
You should see something like:
16:31:05.349546 > volga > 192.168.124.1: icmp: echo request
16:31:05.351376 < 192.168.124.1 > volga: icmp: echo reply
16:31:06.348707 > volga > 192.168.124.1: icmp: echo request
16:31:06.350528 < 192.168.124.1 > volga: icmp: echo reply
16:31:07.348720 > volga > 192.168.124.1: icmp: echo request
16:31:07.350547 < 192.168.124.1 > volga: icmp: echo reply
If that fails.... Well, I'm running out if ideas.
On Wed, 18 Jul 2001, Ihab A Awad (CBC) wrote:
- Hi there,
-
- Thanks for the help ... here's what happened.
-
- On Wed, 18 Jul 2001, Stephen Carville wrote:
-
- > Whenteh machine comes up, first add an address to eth0. Do not add
- > any routes yet. You do not need then until time to go off net.
- >
- > Flush your ipchains rules: /sbin/ipchains -F
- >
- > See if you can ping your self: ping 192.168.1.130.
-
- This works fine, with about 100usec latency.
-
- > If that works then try to ping the router: ping 192.168.1.1
-
- At this point, it fails. The error is "Destination host unreachable".
-
- I tried bumping the logging level in /etc/syslog.conf to 'debug', but no
- debug messages showed up in the log. I tried 'modinfo -p wvlan_cs' but it
- doesn't seem to have a debugging parameter that I can set. Under the
- circumstances, therefore, I'm really not sure where my packets are going
- or where they are getting lost.
-
- Given that I've only used the wireless interface since rebooting, the
- results I get when I 'cat /proc/net/dev' is 408 byes, 6 packets, both
- transmitted _and_ received on eth0. When I 'cat /proc/net/wireless', I
- find zero discarded packets for eth0, and status=000, Quality link=57,
- Quality level=222, Quality noise=165.
-
- This is really strange.
-
- Thanks as always & peace,
-
- Ihab Awad
-
-
--
--Stephen Carville
http://www.heronforge.net/~stephen/gnupgkey.txt
==============================================================
Government is like burning witches: After years of burning young women
failed to solve any of society's problems, the solution was to burn more
young women.
==============================================================
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