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Date:      Mon, 8 Jul 2019 12:55:22 -0500
From:      Dan Lists <lists.dan@gmail.com>
To:        Michael Sierchio <kudzu@tenebras.com>
Cc:        Eugene Grosbein <eugen@grosbein.net>, "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>
Subject:   Re: Bridge Not Forwarding ARP
Message-ID:  <CAPW8bZ2cqkZUKH8%2Bvc%2BV%2BXu3nCwy7Q3zmkdhpccX4tt3HS%2BUeQ@mail.gmail.com>
In-Reply-To: <CAHu1Y70R%2BBwiKTLoA0KqK2xJ5YpcM_O2ApNoackm_izEFP0DJA@mail.gmail.com>
References:  <CAPW8bZ2NaXB24p1mtH=A2f8ZukTPn7%2BPKXwUN2F0Osrn0exYNw@mail.gmail.com> <CAHu1Y72BjAgrM6=gFAJK6D9drAqda_oKz1V=cA4Ex18=fdFAQQ@mail.gmail.com> <CAPW8bZ3PE20dCaeddfBGA1FOobCa%2BHAxLVeHgvjKp9%2BB_TapkQ@mail.gmail.com> <9e33c592-bd64-277e-6c21-fdeba7e44a94@grosbein.net> <CAHu1Y70R%2BBwiKTLoA0KqK2xJ5YpcM_O2ApNoackm_izEFP0DJA@mail.gmail.com>

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On Mon, Jul 8, 2019 at 12:43 PM Michael Sierchio <kudzu@tenebras.com> wrote=
:

>
> On Mon, Jul 8, 2019 at 10:33 AM Eugene Grosbein <eugen@grosbein.net>
> wrote:
>
> 09.07.2019 0:19, Dan Lists wrote:
>>
>> > On Mon, Jul 8, 2019 at 11:55 AM Michael Sierchio <kudzu@tenebras.com>
>> wrote:
>> >
>> >> What's your firewall ruleset look like?  (show, don't tell)
>> > The firewall is off for testing (the machine is only on a private
>> network).
>> >  # ipfw list
>> > 65535 allow ip from any to any
>> >> What does sysctl report on the interfaces and on arp?
>> > I have not changed any settings.
>>
>> Show output of ifconfig for the bridge and for its members, too.
>> I suppose some misconfiguration like IP address assigned to member
>> interfaces that is wrong.
>> All IP addresses need to be moved to the bridge interface itself.
>>
>>
> Does 'ip' in ipfw match arp packets?
>

It is my understanding that ARP packets are not filtered.   That behavior
can be changed by setting net.link.bridge.ipfw_arp=3D1.

ARP packets are supposed to be forwarded by default.   That worked with
FreeBSD 8.4.


--=20
>
> "Well," Brahm=C4=81 said, "even after ten thousand explanations, a fool i=
s no
> wiser, but an intelligent person requires only two thousand five hundred.=
"
>
> - The Mah=C4=81bh=C4=81rata
>



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