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Date:      Wed, 2 Oct 2002 13:52:45 -0700
From:      Luigi Rizzo <luigi@FreeBSD.ORG>
To:        cjclark@alum.mit.edu
Cc:        ipfw@FreeBSD.ORG
Subject:   Re: ipfw(8), bridge(4), and arp(4)
Message-ID:  <20021002135245.B27273@iguana.icir.org>
In-Reply-To: <20021002173620.GA87135@blossom.cjclark.org>; from crist.clark@attbi.com on Wed, Oct 02, 2002 at 10:36:20AM -0700
References:  <20021002173620.GA87135@blossom.cjclark.org>

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On Wed, Oct 02, 2002 at 10:36:20AM -0700, Crist J. Clark wrote:
> I am seeing some strangeness with ipfw(8) and bridge(4). It looks like
> ARP is being blocked somewhere for the bridging host.
...
> I'm wondering if this is a result of some of the changes to ipfw(8) in
> bridging and filtering at the Ethernet layer. Bug or feature?

it might certainly depend on that change, and in case,
it is a bug (there is probably a pending PR for that).
Thanks for the detailed report, i'll see if i can find the time
to investigate on it.

> luigi, is there something, besides code and commit messages,
> documenting the design of ipfw(8) interaction at the link-layer? I've

no, sorry. But basically enabling or disabling bridge_ipfw
should be transparent for the bridging host.

	cheers
	luigi

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