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Date:      Tue, 16 Apr 1996 01:01:53 -0600 (MDT)
From:      Dave Andersen <angio@aros.net>
To:        mcs@vpm.com (Mark Stout)
Cc:        questions@FreeBSD.ORG
Subject:   Re: Monitoring traffic between two sites, How??
Message-ID:  <199604160701.BAA13779@shell.aros.net>
In-Reply-To: <199604160305.UAA02499@vpm.com> from Mark Stout at "Apr 15, 96 08:05:22 pm"

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Lo and behold, Mark Stout once said:

> I tried using tcpdump, but can't configure the device /dev/bpf0.  What
> do I need to do to configure this device?
> 
> Thanks,
> Mark

     1 - you need to be root when you run tcpdump.
If that fails:
     2 - you need to have a device /dev/bpf0.  If you don't, make one
         with /dev/MAKEDEV
If that still fails:
     3 - you need to have bpf support compiled in to your kernel.
         Recompile the kernel with:

   pseudo-device   bpfilter       1

         in the psuedo devices list.

Note that these are listed from easiest to most time consuming.  It's 
quite likely that the culprit is both 2 & 3.


  - Dave Andersen

-- 
angio@aros.net                Complete virtual hosting and business-oriented
system administration         Internet services.  (WWW, FTP, email)
http://www.aros.net/          http://www.aros.net/about/virtual
  "There are only two industries that refer to thier customers as 'users'."




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