Re: Snort stateless/asymmetric mode

[Rodolfo Etore <rponteado () gmail com>]

Hello, thanks for your quickly response here,



2013/5/8 James Lay <jlay () slave-tothe-box net>

> On 2013-05-08 12:54, Rodolfo Etore wrote:
> > Hello all,
> >
> > Can you please help me with the following situation:
> >
> > I have two sensors, our network team created a portchannel to connect
> > both sensors on the same network, and now the situation we are facing
> > is this, the traffic comes into one sensor and gets out trough the
> > order sensor, this way snort is not matching any rules, so i would
> > like to check with you if there is an way so we can inspect the
> > traffic in some sort of stateless mode, because it only matches when
> > traffic gets out in the same sensor it got in.
> >
> > Many thanks for your help.
>
>
> By sensor are you meaning a different machine/snort instance/interface?
> Could you describe it in a litter more detail?

A sensor is basically a machine, and each machine has one bridge with one
snort instance running. The two machines have the very same configuration.
What happens is that in some situations we have the inbound packets trough
one machine and the outbound packets trough the second machine, as
mentioned early this way snort signature are not matching.

> James
>
>
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-- 
Muito obrigado desde já

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Download your free book today! http://p.sf.net/sfu/neotech_d2d_may

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