[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: [despammed] Re: odd networking problem



Ed McMan, 2002-Oct-07 15:25 -0400:
> 
> 
> Monday, October 7, 2002, 12:39:40 PM, you wrote:
> 
> Jeff> Ed McMan, 2002-Oct-06 19:22 -0400:
> Jeff> <snip>
> >> 
> >> Here is the weird part.  This computer works fine using the same
> >> configuration in Windows.  All the other computers work fine too.  I
> >> have been trying to figure out what the problem is, so I did some
> >> packet sniffing with ethereal on the router.
> >> 
> >> I listened for any packets going to or from the debian machine in
> >> question.  I ran ping (some host on the internet) and let it sit.  The
> >> first two pings went through, and then it stopped.  The *really* weird
> >> part is that the machine stopped sending the pings!  Well, the router
> >> wasn't receiving them anyway.  Another oddity is that running
> >> /etc/init.d/networking restart on the workstation would fix the problem, for a few more
> >> packets.  After letting ping sit, another ping would go through about
> >> every five minutes.
> 
> Jeff> This is weird.  A few thoughts...
> 
> Jeff> - are there firewall rules on the router that might be limiting ICMP?
> no, the first few go through.  any other machine can also ping,
> traceroute fine.
> Jeff> - could system be on a bad switch port? or patch cable?
> nope, works fine in windows.
> Jeff> - are there errors being generated on the eth1 interface,
> Jeff>   e.g. ifconfig eth1 ?  perhaps a bad NIC?
> no errors, and it works in windows.
> 
> This is driving me nuts ;)

I'm sure it is...

Hmmm...here's another thought, I've heard that if you do a soft-reboot
from Windows to Linux that some things don't work right.  I've
specifically heard this about sound, since Windows configures the
devices one way and then Linux wants to configure it a different way,
wrt resources.  Perhaps Windows is setting the NIC to a certain irq
and Linux is having trouble with it.  If you shut Windows completely
down and then boot directly to Linux, Linux should be able to
configure the devices the way it wants.

Also, are their any messages in /var/log/syslog or messages or
kern.log or any other logs that might help?

jc

--
Jeff Coppock		Systems Engineer
Diggin' Debian		Admin and User



Reply to: