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Date: Thu, 18 Sep 2003 11:42:03 +1000
From: Edwin Groothuis <edwin@mavetju.org>
To: Josh Brooks <user@mail.econolodgetulsa.com>
Message-ID: <20030918014203.GA59403@k7.mavetju>
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cc: freebsd-net@freebsd.org
Subject: Re: I would like to tcpdump and get all the packets...
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On Wed, Sep 17, 2003 at 06:31:03PM -0700, Josh Brooks wrote:
> Whenever I run:
> 
> tcpdump -vvv
> 
> when I am finished, I am surprised to see:
> 
> 27441 packets received by filter
> 7866 packets dropped by kernel

That's because the buffer of captures-but-not-yet-processed packets
in tcpdump was filled up. In other words, your system is to slow
to process the amount of traffic going through your machine.

Edwin

-- 
Edwin Groothuis      |            Personal website: http://www.mavetju.org
edwin@mavetju.org    |    Weblog: http://www.mavetju.org/weblog/weblog.php