Snort mailing list archives

Re: snort deployment


From: fname lname <larskman () gmail com>
Date: Tue, 30 Aug 2005 20:47:34 -0400

I was reading over snort deployment on snort's site what if i build a 
passive tap? Will that be the same? But look I need two nic in my box to use 
it on a full duplex mode.

On 8/30/05, Will Metcalf <william.metcalf () gmail com> wrote:

Hmmmm I agree with David, if you are only going to be passively
monitoring traffic (alerting) there is no need to run in inline mode.
You will probably introduce some unnecessary latency into your
network. I would investigate using a span port or a tap.

Regards,

Will

On 8/30/05, David Klotz <bucky () speakeasy org> wrote:
On Tue, 30 Aug 2005, MAEDA wrote:

You should run snort as inline-mode (see manual version 2.3.x).
In inline-mode, snort takes packet informations from target QUEUE of 
iptables.
So, you make bridge between two NICs, and assign QUEUE to 
FORWARD-chain target.


Wouldn't inline just add another layer of complexity when it's not 
needed? I
would go with the switch and the span port, unless you have some 
specific need
for inline, such as connection killing or any of the IPS style 
functionality.
But I'm no expert...

--
-Dave
-bucky () speakeasy org



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SF.Net email is Sponsored by the Better Software Conference & EXPO
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Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf
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