[Snort-users] Snort and TCP Traffic

Keith W. McCammon mccammon at ...11827...
Thu Jul 22 11:24:27 EDT 2004

Not picking it up and not having it show up someplace else (a
reporting tool) may be two entirely different issues.  Unless you've
used BPF or the like to dismiss TCP traffic, it's highly unlikely that
Snort is 1) running and analyzing traffic AND 2) simply ignoring the
TCP stuff.

Are you using any type of BPF filters?

Are you seeing events generated by IP, ICMP, UDP, etc.?

Perhaps you should try starting Snort from the command line, with
minimal options, binary logging, etc. and see what it picks up.  The
suggestion that it could be picking up everything *but* TCP  (unless
configured to do so) is hard to swallow.  Unless configured otherwise,
the capture function is pretty much all or nothing--not "some."

On Thu, 22 Jul 2004 14:53:09 +0100, David Keogh
<david.keogh at ...12168...> wrote:
> Can anyone give me some advice on snort not picking up any TCP traffic?
> i'm pretty sure i have everything configured properly, like preprocessors
> enabled i just can't seem to see any TCP traffic when viewed through ACID
> (Using snort, snortcentre, acid... on sentinix)
> Regards
> David
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