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RE: Port mirroring across multiple switches
From: "Hasnain Atique" <hatique () hasnains com>
Date: Fri, 5 Dec 2003 09:25:05 +0800

Collecting ARP is only one of my goals. Eventually, I need to be able to
sniff on all. 

-----Original Message-----
From: David Gillett [mailto:gillettdavid () fhda edu] 
Sent: Friday, December 05, 2003 8:29 AM
To: 'Hasnain Atique'; security-basics () securityfocus com
Subject: RE: Port mirroring across multiple switches

  ARP queries are broadcast.  You should be able to sniff 
them from any port on the right VLAN.  Mirroring is only needed for 
unicast traffic.

David Gillett

-----Original Message-----
From: Hasnain Atique [mailto:hatique () hasnains com]
Sent: December 4, 2003 02:23
To: security-basics () securityfocus com
Subject: Port mirroring across multiple switches

What's the best approach to port mirror traffic from multiple
Should I enable mirroring on one port of each switch, and 
then connect
those ports to a hub and put my sniffer on the same hub? 

My ultimate objective is to collect ARP query information from all 


-- H



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