[PLUG] OT: Detecting network traffic

[Brian Benson]

That would only work if your monitoring for trafic that needs to
routed to somewhere else.  If your monitoring for traffic between
multiple computers in the same subnet on your LAN then the switch will
just pass the packets to the machine that its destined for, after all
thats what ARP tables are for, right?
-Brian


On Sun, 3 Oct 2004 07:54:09 -0700, Dale Zeutenhorst
<dalez at message4me.com> wrote:
> If you have a switch - use the machine you want to monitor the network as a
> gateway, so all trafic goes through it and then to your D-Link. Then you can
> use any monitoring tools you want.
> 
> Dale Z
> 
> 
> 
> 
> On Saturday 02 October 2004 05:05 pm, Brian Benson wrote:
> > use a hub and tcpdump or ethereal to sniff the packets. switches use
> > mac adresses to selectivly send packets out certain ports. so you
> > would need a hub which just broadcast all net trafic to all of the
> > ports.  Maybe others know how to do it with a swtch.
> > -Brian
> >
> > On Sat, 02 Oct 2004 23:54:12 +0000, Vincent Yau <v_yau3 at hotmail.com> wrote:
> > > I have a bit of a off-topic question.
> > > I have a very conventional setup at home.  A cable modem,
> > > D-link cable modem router, and share the cable internet
> > > connection amongst several PCs.  2 Windows and 2 Linux boxes.
> > >
> > > From one of the linux boxes, I want to be able to scan all network
> > > traffic within my intranet.  So basically, I want to be able
> > > to detect all packets travelling from my D-Link router
> > > to each of the other 3 boxes from my linux box.
> > > Is there a way for me to achieve this?
> > >
> > > Thanks for any pointer.
> > >
> > > --Vincent
> > >
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