Re: Monitoring incoming or outgoing traffic

["Joel Esler (jesler)" <jesler () cisco com>]

Snort is only effective if it can see an entire flow of traffic.  I believe what you are trying to do can be 
accomplished by properly setting your HOME_NET in the snort.conf file.  

--
Joel Esler 
Sent from my iPhone

> On Jan 9, 2015, at 6:58 AM, Anshuman Anil Deshmukh <anshuman () cybage com> wrote:
>
> Hi Jeremy,
>  
> I understood the tap/span part. Kindly confirm if the syntax for BPF for allowing  only one direction of traffic 
> would be in this format?
>  
> !(dst net 10.10.0.0/16) &&
>  
> OR
>  
> !(src net 192.168.0.0/16) &&
>  
>  
> Regards,
> Anshuman
>  
> From: Jeremy Hoel [mailto:jthoel () gmail com] 
> Sent: Friday, January 9, 2015 12:01 PM
> To: Anshuman Anil Deshmukh
> Cc: snort-users () lists sourceforge net
> Subject: Re: [Snort-users] Monitoring incoming or outgoing traffic
>  
> From snort itself you could use some for of BPF filter, or configure the tap/span to only send one direction of 
> traffic, if possible.   To snort, it's all inbound in IDS mode.  
>  
> On Thu, Jan 8, 2015 at 11:18 PM, Anshuman Anil Deshmukh <anshuman () cybage com> wrote:
> Hi,
>  
> Is there a way in Snort to just monitor the incoming or outgoing traffic in IDS mode? Do we need to specify this 
> under threshold.conf or somewhere else? We are on version Snort 2.9.7.0
>  
>  
> Regards,
> Anshuman
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Dive into the World of Parallel Programming! The Go Parallel Website,
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hub for all things parallel software development, from weekly thought
leadership blogs to news, videos, case studies, tutorials and more. Take a
look and join the conversation now. http://goparallel.sourceforge.net

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