[Bro] ConnCompressor, TCP options

James Swaro james.swaro at gmail.com
Thu Jan 6 17:58:28 PST 2011


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On 01/06/2011 07:20 PM, Robin Sommer wrote:
> 
> On Thu, Jan 06, 2011 at 15:50 -0500, you wrote:
> 
>> Why is initial packet faked and not passed as originally observed?
> 
> Because it is not completely stored at that point. For a
> connection's initial packet, the compressor remembers only what's
> necessary for later analyzing it in full if more packets are coming
> in. That saves a lot of memory (and CPU actually) for things like
> scans and floods because for all those connections, Bro needs hardly
> any resources. 
> 
>> Can you disable the use of the compressor? If so, how ?
> 
> See other mail. For an offline trace analysis, you probably want to
> do that.
> 
> Robin
> 


Thank you for both answers. The first was a curiosity question and the
second, a necessity. Thank you, and rmkml for the prompt answers.

- -- 
- -James
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