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Date:      Tue, 2 Feb 1999 15:59:24 -0500
From:      "Norman C. Rice" <nrice@emu.sourcee.com>
To:        Bill Woodford <woodford@cc181716-a.hwrd1.md.home.com>
Cc:        ML FreeBSD Security <security@FreeBSD.ORG>
Subject:   Re: tcpdump
Message-ID:  <19990202155924.A16927@emu.sourcee.com>
In-Reply-To: <19990202153458.A1152@cc181716-a.hwrd1.md.home.com>; from Bill Woodford on Tue, Feb 02, 1999 at 03:34:58PM -0500
References:  <19990202153458.A1152@cc181716-a.hwrd1.md.home.com>

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On Tue, Feb 02, 1999 at 03:34:58PM -0500, Bill Woodford wrote:
> Forgive my ignorance, but I built tcpdump (3.4a3) and libcap (0.4a1) and
> it built beautifully.  I read the docs, and that mentioned a few things to
> watch out for.  However, when I run tcpdump (as root), it gives me:
> 
> tcpdump: /dev/bpf0: Device not configured
> 
> I did a little reading, and realize it's possible that my NIC may not
> support it (it's a 3com 3c509 combo), but how would one tell.  Can anyone
> enlighten me as to the true nature of this error?  Im running natd/ipfw,
> would that interfere with the functioning of tcpdump?  Any help would be
> appreciated.  Thanks.

Add

  pseudo-device   bpfilter    4 

to your kernel config file, build and install a new kernel. 
You may also need to create the bpf devices.

  cd /dev
  ./MAKEDEV bpf0 bpf1 bpf2 bpf3

-- 
Regards,
Norman C. Rice, Jr.


> 
> -- 
> Bill Woodford * woodford@cc181716-a.hwrd1.md.home.com * ICQ:14076169 
>      "Windows Multitasking: Messing up several things at once."

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