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Date:      Thu, 27 Jun 1996 22:06:50 -0400
From:      Andrew Herdman <andrew@why.whine.com>
To:        Brandon Gillespie <brandon@tombstone.sunrem.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Network Monitoring/Packet Sniffing?
Message-ID:  <Pine.BSF.3.91.960627220514.2647A-100000@why>
In-Reply-To: <Pine.BSF.3.91.960627182933.1735A-100000@tombstone.sunrem.com>

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Use 'trafshow' it's in the ports collection.  I use it on my network at 
work to track down a variety of problems, just plug the ethernet 
interface into the hub/subnet you want to peek at.  It also uses standard 
tcpdump filter rules so you can figure them out with a man tcpdump.

Andrew



On Thu, 27 Jun 1996, Brandon Gillespie wrote:

> I have been given the dubious task of 'administrating' our LAN and its 
> connection to the internet.  Recently our network will max out its 
> capacity, crippling everybody for a few moments until it recovers.  I 
> havn't been able to track anything more than bandwidth is spiking to 
> capacity.  Another admin where I work has an Ethernet monitor which 
> simply says 75% of it is from TCP/IP packets (we also run ethertalk).  We 
> have several leased connections, and our network itself is not of the 
> best design.
> 
> What I am looking for is programs of any sort which do _anything_ in 
> regard to monitoring network traffic.  Specifically, I would love 
> something which also tracked what IP addresses are hitting the top in 
> bandwidth.  The FreeBSD system I am thinking of sits in the middle of the 
> network, so should be able to see as easilly as any other (we do not 
> bridge nor do we have smart hubs, so it should see EVERYTHING).
> 
> -Brandon Gillespie-
> 



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