RE: Snort in a switched environment

[Matt Yackley <Matt.Yackley () perkinswill com>]

The trouble with a switch is that it stores MAC address in a table for each
port and will only send data to the specific port that is the destination,
the execptions are broadcast traffic and perhaps when a new device is placed
on the network.  A way around the problem is if the switch handles port
mirroring, you can mirror traffic from selected ports to a port that you
specfiy as the monitoring port.  Check the user manual that came with the
switch to see if it supports port mirroring.

Matt

-----Original Message-----
From: Bastian Ballmann [mailto:ballmann () co-de de]
Sent: Tuesday, May 14, 2002 10:20 AM
To: snort-users () lists sourceforge net
Subject: [Snort-users] Snort in a switched environment


Hello!
Is it possible to run Snort in a switched environment? Cause Snort can only 
sniff the traffic of the host he is running on. Unless he is doing something

like ARP poisoning or something like this...
But I think this would lead into trouble if you run the arpspoof
preprocessor 
;)
Greets

Bastian Ballmann
-- 
Bastian Ballmann [ ballmann () co-de de ]
@ Computational Design GmbH
[ http://www.co-de.de ]

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