[Bro] Event for syn-ack packet

Sheharbano Khattak sheharbano.k at gmail.com
Wed May 23 09:58:44 PDT 2012


Thanks. I thought the event connection_established was generated after the
initial 3-way handshake is completed as mentioned here:

http://bro-ids.org/documentation/scripts/base/event.bif.html#id-connection_established

On Wed, May 23, 2012 at 9:42 PM, Vern Paxson <vern at icir.org> wrote:

> To clarify, a SYN-ACK in response to a SYN is enough for Bro to generate
> connection_established.  It doesn't actually look for a full 3-way
> handshake
> (i.e., an ACK of the SYN-ACK).  Does that help?  Alternatively, if you have
> traces you can share that demonstrate a failure to get the
> connection_established event, then we can look into just what's going on.
>
>                Vern
>



-- 
Sheharbano Khattak

http://etheryell.com
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