Subject: Re: Weird network problem
To: Mustafa Dogan <>
From: Manuel Bouyer <>
List: tech-net
Date: 12/04/2006 16:29:30
On Mon, Dec 04, 2006 at 05:21:48PM +0200, Mustafa Dogan wrote:
> Hello all,
> I've experienced an unusual (at least for me) network problem for a couple
> of weeks.
> Our server is an IBM 346 with
> 3 GHz. Xeon processor,
> two Broadcom gigabit ethernet,
> 1 GB RAM,
> etc.
> Server runs with NetBSD 3.1. Applications we are using is Apache 2, MySQL,
> SpamAssassin,
> ClamAV and mail and DNS services. It was working nearly 2 years without
> problem.
> I'm observing a network problem. Server doesn't permit network connections
> until reboot.

When you says "doesn't permit network connections", what is the exact
symptom ? Does the client gets a connection reset ? Does the
connection time out ? Can you still ping the server ?

> I can access server console and doesn't appear any error or warning.
> "netstat -w 3" produced this output below: (We are using 512K bandwith)

does 'dmesg' show anything unusual ?
Also the outout of 'netstat -a -n' and 'netstat -m' could be usefull.

Manuel Bouyer, LIP6, Universite Paris VI. 
     NetBSD: 26 ans d'experience feront toujours la difference