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Network Security Snort-Users
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Re: [Snort-users] making snort go fast

Subject: Re: [Snort-users] making snort go fast
Date: Thu, 14 Feb 2008 20:01:27 -0500
Yeah, I'm spiking at over 7G, average run rate during prime hours of 1
to 2G, capability in times of crisis up to 10G.  Detection mode, not
inline. Inline may/will happen (depending on who you ask), but only
with a limited ruleset that we generate internally.  So, my question
returns.... anybody ever tested any of the platforms below?

On Thu, Feb 14, 2008 at 7:02 PM, Moses Hernandez
<moses@networksamurai.org> wrote:

I am catching this a bit late but let m chime in here. Exactly what I the
question. Do you want to do inline prevention or out of band detection at
10g?

The reason I ask is because unless you can prove with netflow that you need
10gb most people do not. In addition you may do further analysis and find
out by although you want 10gb; in reality you may only want to protect and
detect at a different part of the network that is maybe 2gb not 10.

Lastly, consider what you are asking the device to do. Ips and ids
performance may degenerate based on several factors.

1 - how many preprocessors are you running through
2 - do you need to run through all those preprocessors?
3 - do you have necessary and unnecessary ( or wasteful ) signatures loaded?

Once you have an idea then meassure those factors in life (demo) and
calculate actual performance before making a decision.



Moses Hernandez
Www.networksamurai.org


On Feb 14, 2008, at 5:17 PM, JJC <cummingsj@gmail.com> wrote:


I suggest researching sourcefire a bit further... they are not just another
vendor like any other... see what their relationship is to snort.  Granted,
the box is expensive but you often get what you pay for, or for how much
time you invest in engineering a solution etc...

On Thu, Feb 14, 2008 at 5:05 PM, David Williams <dwilliamsd@gmail.com>
wrote:
Yeah, I looked at them and did some checking.  They're commercial 10G
solution lists for around $250,000 I think.  I'm looking for something
a little lower down the price list.  I just want the performance...
not all the other stuff you get when you buy SourceFire.




On Thu, Feb 14, 2008 at 4:36 PM, Joel Esler <joel.esler@sourcefire.com>
wrote:
How about...  Sourcefire?  The people who make Snort?

 They might have a go-fast solution.

 J



 On Feb 14, 2008, at 4:26 PM, David Williams wrote:

 > Hello List,
 >
 > I'm trying to get Snort to go very fast.  Has anybody evaluated any
of
 > these solutions below.  I know these vendors are claiming multi-gig
 > Snort, but I'm skeptical of vendor claims (obviously).
 >
 > - Endace's Ninja appliance (they claim 10G, but the webcast seemed to
 > contradict this claim by stating just under 2G)
 >
 > - Netronome Systems Open Appliance (claiming 6-8G)
 >
 > - Bivio Networks B7000 (claiming 10G)
 >
 > Anybody else I'm missing from the list of vendors claiming to make
 > Snort go fast?
 >
 > thanks,
 >
 > Dave
 >



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 --
 Joel Esler ï joel.esler@sourcefire.com





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