From: Luis Lopez Sanchez (luis.lopezatosorigin.com)
Date: Thu Jul 19 2007 - 13:53:08 CDT

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

Hi IDS-ers,

For more understanding for using taps and span/mirroring ports in low cost switching infrastructure, see this very interesants links from TaoSecurity Blog:

http://taosecurity.blogspot.com/2005/12/taps-and-hubs-never-ever-mix-ive.html
http://taosecurity.blogspot.com/2005/12/taps-and-hubs-part-deux-yesterday-i.html

Note: In standard network infrastructure, such as Enterasys or Cisco is normally possible to use several ports to span even remote-span. In low cost or old switches is not possible.

Have luck!

Regards,

--
Luislo
http://luislo.blogspot.com

"I speak for myslef not Atos Origin"

-----Original Message-----
From: listbouncesecurityfocus.com on behalf of Andrew Hay
Sent: Wed 18/07/2007 20:46
To: JGolianseznam.cz
Cc: focus-idssecurityfocus.com
Subject: Re: port mirroring for two targets
 
It depends on the make and model of the device you're trying to create
the mirrored port on. Some devices don't allow you to create more
than one mirrored interface for a particular port.

You may also want to look at getting a network tap which would
probably allow you to monitor a particular interface with multiple
sensors.

Hope this helps.

On 18 Jul 2007 11:41:15 -0000, JGolianseznam.cz <JGolianseznam.cz> wrote:
> I need port mirrored data for snort and for ntop.
>
> How to make it? Is possible to create two mirroring ports?
>
> ------------------------------------------------------------------------
> 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.
> ------------------------------------------------------------------------
>
>

--
Andrew Hay
blog: https://www.andrewhay.ca
email: andrewsmhay || at || gmail.com

------------------------------------------------------------------------
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.
------------------------------------------------------------------------

------------------------------------------------------------------
This e-mail and the documents attached are confidential and intended solely
for the addressee; it may also be privileged. If you receive this e-mail
in error, please notify the sender immediately and destroy it.
As its integrity cannot be secured on the Internet, the Atos Origin group
liability cannot be triggered for the message content. Although the
sender endeavours to maintain a computer virus-free network, the sender does
not warrant that this transmission is virus-free and will not be liable for
any damages resulting from any virus transmitted.

Este mensaje y los ficheros adjuntos pueden contener informacion
confidencial destinada solamente a la(s) persona(s) mencionadas
anteriormente. Pueden estar protegidos por secreto profesional Si usted
recibe este correo electronico por error, gracias de informar inmediatamente
al remitente y destruir el mensaje.
Al no estar asegurada la integridad de este mensaje sobre la red, Atos
Origin no se hace responsable por su contenido. Su contenido no constituye
ningun compromiso para el grupo Atos Origin, salvo ratificacion escrita por
ambas partes.
Aunque se esfuerza al maximo por mantener su red libre de virus, el emisor
no puede garantizar nada al respecto y no sera responsable de cualesquiera
danos que puedan resultar de una transmision de virus
------------------------------------------------------------------

------------------------------------------------------------------------
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.
------------------------------------------------------------------------

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]