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Re: Rules with "Established" option, not working
From: sami Sayko <saykosami () yahoo com>
Date: Mon, 10 Feb 2014 07:06:40 -0800 (PST)

Thank you for the quick answer.
 
I checked a pcap capture and, yes I can see the source and the destination and (the 3 way handshake).
And to give more precision :
If leave the rules with the flow:to_server, established, the rules will not be triggered.
I if remove the established key (so the rule contains flow:to_server), it works fine.
 
Thanks 




Le lundi 10 février 2014 9h13, Joel Esler (jesler) <jesler () cisco com> a écrit :
 
I assume then that Snort is not seeing both sides of the conversation because of the load balancer? 

Can you confirm this by looking at a pcap?



On Feb 10, 2014, at 8:59 AM, sami Sayko <saykosami () yahoo com> wrote:

Hi,


I'm using snort 2.9.5 (Windows), and official ET and snort rules.
I noticed a strange thing with the official rules :
The rules with established option never triggered, but if I remove the "established" option, all things we'll be ok 
!!!!


I'm using a normal configuration (default). Except that my web server is behind a load balancer.


Can someone help me to find a solution ?


Thanks  
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