RE: IPS and Trunking

["Andrew Plato" <andrew.plato () anitian com>]

If you create a mirror port and plug in any IPS/IDS, it will see the
traffic. TippingPoint, ISS, etc. All can do that. 

Also, pretty much any decent managed switch can have mirror ports. This
is not unique to Cisco. 

Keep in mind, you cannot do real-time IPS (intrusion prevention) in any
reliable manner this way. You have to be IN-LINE to do real-time
blocking and filtering. Passive monitoring off a mirror port only allows
you to send RSTs to stop stuff, and that is not a very reliable way to
block bad stuff. 

___________________________________
Andrew Plato, CISSP, CISM
President/Principal Consultant
Anitian Enterprise Security



-----Original Message-----
From: listbounce () securityfocus com [mailto:listbounce () securityfocus com]
On Behalf Of trav_2 () hotmail com
Sent: Monday, February 05, 2007 10:44 AM
To: focus-ids () securityfocus com
Subject: IPS and Trunking

Cisco has a great feature where I can configure all traffic on a switch
to go to a trunk port, plug in the IPS/IDS to the trunk port and see all
traffic. Can other vendors, such as Sourcefire, TippingPoint, ISS do
this?

Thanks,

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