these two links might help
http://tldp.org/HOWTO/Bridge+Firewall.html
http://www.linux-foundation.org/en/Net:Bridge
Dean
Alex Samad wrote:
On Tue, Jan 08, 2008 at 06:53:51AM +0000, Visser, Martin wrote:
This won't work if it is a network with a dumb (cheap/unmanaged) switch. (An
old dumb hub/repeater would be fine but almost no one uses these nowdays).
You really either need to get access to the gateway (and even then it may not
support any decent stats or raw capture) or have a switch that supports port
mirroring (where it makes a copy of all the traffic on all ports to a
particular nominated port).
or get a linux box with 2 nic and bridge between the switch and then gateway
There is a "bad" (read crackers) tool called ettercap which can trick all your
hosts to send their traffic to another other host by spoofing ARP responses, but in my
opinion it will generally degrade your network and hence interfere in your measurement,
so you probably should ignore this.
Martin Visser
Technology Consultant
Technology Solutions Group - HP Services
410 Concord Road
Rhodes NSW 2138
Australia
Mobile: +61-411-254-513
Fax: +61-2-9022-1800
E-mail: martin.visserAThp.com
This email (including any attachments) is intended only for the use of the
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-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Aleksey
Tsalolikhin
Sent: Tuesday, 8 January 2008 4:10 PM
To: [email protected]
Subject: Re: [SLUG] measuring traffic
Have you tried ntop? It should show you what the top usage is on your network.
That might be the answer you are looking for.
Best,
-at
On Jan 7, 2008 8:49 PM, david <[EMAIL PROTECTED]> wrote:
I have a local network for which I do not have access to the gateway
host.
What tool would folk suggest to determine what and how much traffic is
going to what port on which host?
I've got 8 hosts on the network which are a mixture of mac and linux,
mostly on public IP addresses, and the bandwidth is getting chewed up
by something but i can't tell what.
thanks...
David.
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