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Date:      Wed, 11 Oct 2023 13:23:49 +0200
From:      Kristof Provost <kp@FreeBSD.org>
To:        FreeBSD User <freebsd@walstatt-de.de>
Cc:        FreeBSD CURRENT <freebsd-current@freebsd.org>
Subject:   Re: epair/vbridge: no IPv6 traffic egress until first IPv6 packet flows in
Message-ID:  <678C861F-F42A-445C-AC59-85B4FB68953C@FreeBSD.org>
In-Reply-To: <20231010192649.54272d49@thor.intern.walstatt.dynvpn.de>
References:  <20231010192649.54272d49@thor.intern.walstatt.dynvpn.de>

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On 10 Oct 2023, at 19:26, FreeBSD User wrote:
> Hello,
>
> at first: observation is below, marked [OBSERVATION].
>
> Running recent CURRENT (FreeBSD 15.0-CURRENT #26 main-n265831-3523f0677=
ef: Mon Oct  9 14:00:42
> CEST 2023 amd64), I've configured a bridge (bridge0), the hosts's inter=
face igb0 (I350-T2 two
> port Gigabit Network Connection ) is member of that bridge and so a cou=
ple of epair(4) devices
> belonging to a couple of jails.
>
<snip>
> On epairs as well as on the main hosts igb0 NIC, both IPv4 and IPv6 are=
 configured, IPv6 uses
> ULA and setup doesn't has anything fancy.
>
Do not assign addresses to bridge member interfaces. Assign the addresses=
 to the bridge itself.
Misconfiguring that breaks multicast, which almost certainly explains all=
 of your symptoms.

Best regards,
Kristof



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