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Network Security Focus-IDS
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Re: IDS/IPS system with Foundry sFlow

Subject: Re: IDS/IPS system with Foundry sFlow
Date: Tue, 22 Apr 2008 16:18:13 -0400

I have seen snort sFlow integrations done a few times times with varying
degrees of success. Definitely worth exploring as it doesn't cost ya much
other than your time. Problems with sample rates and TCP state are the
biggest barriers for serious content inspection.

1 in 128 is about the lowest most vendors recommend and even at that low
sample rate your already at 99%+ packet loss from snort's perspective.
Specially tuned sigs can be crafted to deal with the sparse content but I'm
not sure how many of other exist. I'm sure Marty can comment.

BTW: Snort syslog can be fed into the StealthWatch sFlow collector for
contextual reporting and event association.



On 4/22/08 2:18 PM, "Martin Roesch" <roesch@sourcefire.com> wrote:

When you say "with sFlow" do you mean analyze the sFlow records or
analyze the packets on the wire and correlate it with the sFlow data?

--
Sent from my iPhone

On Apr 21, 2008, at 3:42 PM, "Security Group" <secgro@gmail.com> wrote:

Hello,

We have got a network with an embedded support for sFlow technology.
We also want to have a good IDS/IPS system. Does anyone know a good
setup with our foundry?

We noticed that Foundry got their own application called "IronView
Network Manager", it is able to operate with snort. Does anyone know
of this is a good solution? Or should we use an sFlow converter (e.g.
InMon sFlow toolkit) that can work with snort?

What are the other possibilities for IDS/IPS besides snort. It has to
operate with the sFlow technology.

Kind regards,

Babel Timo

---
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Find out quickly and easily by testing it
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Go to http://www.coresecurity.com/index.php5?module=Form=impact=intro_sfw
<http://www.coresecurity.com/index.php5?module=Form&action=impact&campaign=in
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------------------------------------------------------------------------
Test Your IDS

Is your IDS deployed correctly?
Find out quickly and easily by testing it
with real-world attacks from CORE IMPACT.
Go to http://www.coresecurity.com/index.php5?module=Form=impact=intro_sfw
<http://www.coresecurity.com/index.php5?module=Form&action=impact&campaign=int
ro_sfw> 
to learn more.
------------------------------------------------------------------------






------------------------------------------------------------------------
Test Your IDS

Is your IDS deployed correctly?
Find out quickly and easily by testing it 
with real-world attacks from CORE IMPACT.
Go to 
http://www.coresecurity.com/index.php5?module=Form&action=impact&campaign=intro_sfw
 
to learn more.
------------------------------------------------------------------------

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