From owner-freebsd-hackers  Thu Oct  4 11:30:57 2001
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To: Dag-Erling Smorgrav <des@ofug.org>
Cc: Doug White <dwhite@resnet.uoregon.edu>, Bsdguru@aol.com,
	hackers@FreeBSD.ORG
Subject: Re: if_sf bug 
In-Reply-To: <xzp7kubcndq.fsf@flood.ping.uio.no> 
References: <Pine.BSF.4.33.0110031713450.2598-100000@resnet.uoregon.edu> <xzp7kubcndq.fsf@flood.ping.uio.no>
Comments: In-reply-to Dag-Erling Smorgrav <des@ofug.org>
   message dated "04 Oct 2001 19:42:57 +0200."
From: "Bruce A. Mah" <bmah@FreeBSD.ORG>
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If memory serves me right, Dag-Erling Smorgrav wrote:
> Doug White <dwhite@resnet.uoregon.edu> writes:
> > On Wed, 3 Oct 2001 Bsdguru@aol.com wrote:
> > > The if_sf driver doesnt seem to initialize itself until an address is set
> ,
> > > which makes things like tcpdump, bridging and other promiscuous things no
> t
> > > work.
> > All the interfaces do that.  If you want to make an invisible interface,
> > configure it with IP 0.0.0.0.
> 
> I believe 'ifconfig foo0 up' is sufficient.

Confirming data point:  "ifconfig dc0 up" allowed tcpdump in promiscuous
mode when I tried it.

Bruce.



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