Network hardware IPS

[Alvin Wong <alvin.wong () b2b com my>]

Hi,

Thanks for the recommendations, I'm concerned about performance issues
when an IPS is plugged in, is there any statistics by any independent
reviewer about performance hits inline as i believe this would be an
important issue. 

It would be good if they were any reviews that would include graphs and
performance deterioration in terms of throughput performance after an
IPS has been put in.

What would be interesting though is whether the IPS fulfills the
expected requirements which primarily to me is to do a good job in
dealing with potential attacks and allow the administrator more time in
other tasks. 

To me, the prospect of using IDS and reviewing logs everyday seems like
a very time consuming prospect, any opinions on this from any who are
currently in such a situation?

I've evaluated some IDS products and felt that the management console is
taking up a lot of resources especially when it is extracting data from
the IDS appliance and refreshing constantly, any similar experiences?

Also, my question to any is the following
"One note of caution on TCP Reset is not a preferred method of blocking
attacks according to some security experts. " Alan Shimel

Why isn't TCP reset a preferred method of blocking?

Regards,
Alvin

On Tue, 2003-09-30 at 06:24, Jake Babbin wrote:
> Sure Netscreen is a good choice if you like up to 40% performance drop
> inline!
>
>
> ----- Original Message -----
> From: "JAVIER OTERO" <jotero () SMARTEKH com>
> To: "Alvin Wong" <alvin.wong () b2b com my>; <focus-ids () securityfocus com>
> Sent: Monday, September 29, 2003 12:02 PM
> Subject: RE: Network hardware IPS
>
>
> Netscreen IDP is a good product, uses 8 mechanisms for detect, 3 models,
> small, medium and large, 3 active modes plu 1 passive (like IDS)
>
> Ing. Fco. Javier Otero De Alba
> Diplomado en Seguridad Informática ITESM CEM
> Grupo Smartekh
> Antivirus Expertos
> Bussiness Continuity
> Inftegrity
> 5243-4782 al 84 Ext.300
> México, D.F.
>
>
>
> -----Mensaje original-----
> De: Alvin Wong [mailto:alvin.wong () b2b com my]
> Enviado el: Lunes, 29 de Septiembre de 2003 03:31 a.m.
> Para: focus-ids () securityfocus com
> Asunto: Network hardware IPS
>
>
> Hi,
>
> I'm interested to find out if anyone can share their experiences or
> recommend a network hardware IPS that is deployed in front of the
> gateway which is able to detect attack signatures and at the same time,
> actively blocking out these attacks, alerting me in the process.
>
> This would be different from a passive IDS which depends on correlating
> the logs every time an alert pops up. An ideal solution would be to be
> able to detect the patterns and prevent them automatically, can a
> network IPS do this?
>
> I understand that it is possible in some IDS to do a TCP reset after one
> had confirmed that the connection is not acceptable, can anyone explain
> whether an IDS that can do this be actually "active" as opposed to
> passive?
>
> It would also be interesting if there could be some amount of trend
> analysis built in which can review the destination/source ip traffic
> over time, which can be used to identify particular boxes which are
> easily targeted, which would mean that more work needs to be done for
> that box.
>
> Regards,
> Alvin
>
>
>
> ---------------------------------------------------------------------------
> Captus Networks IPS 4000
> Intrusion Prevention and Traffic Shaping Technology to:
>  - Instantly Stop DoS/DDoS Attacks, Worms & Port Scans
>  - Automatically Control P2P, IM and Spam Traffic
>  - Precisely Define and Implement Network Security & Performance Policies
> FREE Vulnerability Assessment Toolkit - WhitePapers - Live Demo
> http://www.securityfocus.com/sponsor/CaptusNetworks_focus-ids_000101
> ---------------------------------------------------------------------------
>
>
> ---------------------------------------------------------------------------
> Captus Networks IPS 4000
> Intrusion Prevention and Traffic Shaping Technology to:
>  - Instantly Stop DoS/DDoS Attacks, Worms & Port Scans
>  - Automatically Control P2P, IM and Spam Traffic
>  - Precisely Define and Implement Network Security & Performance Policies
> FREE Vulnerability Assessment Toolkit - WhitePapers - Live Demo
> http://www.securityfocus.com/sponsor/CaptusNetworks_focus-ids_000101
> ---------------------------------------------------------------------------


---------------------------------------------------------------------------
Captus Networks IPS 4000
Intrusion Prevention and Traffic Shaping Technology to: 
 - Instantly Stop DoS/DDoS Attacks, Worms & Port Scans
 - Automatically Control P2P, IM and Spam Traffic
 - Precisely Define and Implement Network Security & Performance Policies
FREE Vulnerability Assessment Toolkit - WhitePapers - Live Demo 
http://www.securityfocus.com/sponsor/CaptusNetworks_focus-ids_000101
---------------------------------------------------------------------------