IMHO there could be something like this:
1. an upgrade failed. This should not happen in theory, but happend to
me in practice: the thing was that I change lilo configuration, and
when the kernel was upgraded and lilo, by some reason lilo did not run
and I got an unsuable system (until managed to boot and run lilo). Now
that I wrote this, shuold not be your case, since I couldn''t boot
2. A kernel module got corrupted, or a configuration file, which is
the same here, make sure you have your net module loaded, then try to
configure manyually (ifconfg eth0 10.1.2.2 up ie) that should give you
an idea if the conf was messed or something more serious
3. Something similar to 1 happend to me with sound, but I used
modconf, loaded the sound module and everything worked smooth again
good luck
----- Original Message -----
From: Kevin Murphy <[EMAIL PROTECTED]>
Date: Sun, 29 Aug 2004 10:24:48 -0400
Subject: networking stopped working on sarge
To: [EMAIL PROTECTED]
I'm probably missing something obvious here, but my sarge box suddenly
became unable to access the internet (and vice versa) the other day.
There were two unusal events that day, and unfortunately, many
ill-advised experiments in mixing coffee and beer later, I don't
remember the order of the events and the onset of my problems ;-)
1) I updated via synaptic -- however, nothing should have been
updated, if I understand how synaptic works, because one package
failed to install correctly (due to dependency problems introduced by
a non-testing package).
2) Also on the same day, power was cut from the box (kicked power
cable). The fsck made about a dozen repairs upon startup.
Most of the time, I can't ping anything from the box, even by IP
address, and I can't ping the box from the outside. When I ping from
the box, it says "Destination Host Unreachable".
Bizarrely, there was a stretch for a few minutes at one point when
networking was working.
Anyway, I'm not sure what to look for. Here's what I've done so far:
* I checked the cable, and that is OK. As a check, I unplugged a
working cable from the back of another computer and plugged it into my
sarge box, to no avail.
* I rebooted the computer.
* I did /sbin/ifconfig -a, which shows the machine's correct IP
address under eth0 (I'm typing the following, so excuse any typos):
eth0 Link encap:Ethernet HWaddr blah
inet addr:192.168.0.2 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: blah
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets: 3507 errors:1 dropped:0 overruns:0 frame:0
TX packets: 2789 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:801243 (782 KiB) TX bytes:262918 (256.7 KiB)
Interrupt: 11 blah
* I did /sbin/route, and it spits out:
192.168.0.0 * 255.255.255.0 U 0 0 0 eth0
immediately, but 30 or so seconds later (!?), it spits out:
default 192.168.0.1 0.0.0.0 UG 0 0 0 eth0
Is that delay unusual behavior?
* I looked at /var/log/syslog, and while I don't understand very much
that I see there, the only strange thing (to me) were a few messages
about certain UDP packets that appear somewhat sporadically every once
in a while, usually in bursts of one message every couple minutes.
These message occur even while I can't get anything else to work, btw.
* Top shows low CPU usage, 46M memory free.
* df -k shows plenty of space.
* I updated (via manual download on another machine, copy to CDROM,
and dpkg) from kernel-image-2.6.3-1 to kernel-image-2.6.7-1-k, just
for the hell of it.
* I have an AMD K7 system with a Kingston KNE100TX NIC. I'm using a
DLink DI-514 router, and other machines on that router are working
fine.
Sorry for the long message. What should I do next?
Thanks,
Kevin Murphy
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