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Date:      Tue, 4 Jun 2024 17:37:55 +0200
From:      FreeBSD User <freebsd@walstatt-de.de>
To:        Alexander Leidinger <Alexander@Leidinger.net>
Cc:        FreeBSD CURRENT <freebsd-current@freebsd.org>
Subject:   Re: bridge: no traffic with vnet (epair) beyond bridge device
Message-ID:  <20240604173822.4c61c1b9@thor.intern.walstatt.dynvpn.de>
In-Reply-To: <2433e25ebf6eae827bcd7912bbe27fbc@Leidinger.net>
References:  <20240603210231.64889de0@thor.intern.walstatt.dynvpn.de> <2433e25ebf6eae827bcd7912bbe27fbc@Leidinger.net>

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Am Tue, 04 Jun 2024 09:36:38 +0200
Alexander Leidinger <Alexander@Leidinger.net> schrieb:

> Am 2024-06-03 21:02, schrieb FreeBSD User:
> > Hello,
> >=20
> > I'm running a dual socket NUMA CURRENT host (Fujitsu RX host) running=20
> > several jails. Jails are
> > attached to a bridge device (bridge1), the physical device on that=20
> > bridge is igb1 (i350 based
> > NIC). The bridge is created via host's rc scripts, adding and/or=20
> > deleting epair members of the
> > bridge is performed by the jail.conf script.
> >=20
> > I do not know how long the setup worked, but out of the blue, last week=
=20
> > after a longish
> > poudriere run after updating the host to most recent CURRENT (as of=20
> > today, latest update
> > kernel and world) and performing "etcupdate" on both the host and all=20
> > jails, traffic beyond
> > the bridge is not seen on the network! All jails can communicate with=20
> > each other. Traffic from
> > the host itself is routed via igb0 to network and back via igb1 onto=20
> > the bridge.
> >=20
> > I check all setups for net.link.bridge:
> >=20
> > net.link.bridge.ipfw: 0
> > net.link.bridge.log_mac_flap: 1
> > net.link.bridge.allow_llz_overlap: 0
> > net.link.bridge.inherit_mac: 0
> > net.link.bridge.log_stp: 0
> > net.link.bridge.pfil_local_phys: 0
> > net.link.bridge.pfil_member: 0
> > net.link.bridge.ipfw_arp: 0
> > net.link.bridge.pfil_bridge: 0
> > net.link.bridge.pfil_onlyip: 0
> >=20
> > I did not change anything (knowingly).
> >=20
> > I also have an oldish box running single socket processor, also driven=
=20
> > by the very same
> > CURRENT and similar, but not identical setup. The box is running very=20
> > well and the bridge is
> > working as expected.
> >=20
> > I was wondering if something in detail has changed in the handling of=20
> > jails, epair and
> > bridges. I followed the setup "after the book", nothing suspicious. =20
>=20
> "after the book" =3D the IP of the host itself is not on igb1 but on a=20
> different interface or on the bridge?
>=20
> Is there a firewall active on the box itself? Which one?
>=20
> What does wireshark / a traffic dump at the physical interface level=20
> tell compared to a traffic dump at the switch interface? Did you replace=
=20
> the cable / SFP / move to a different switch port as a test?
>=20
> I suggest to provide the output of ifconfig -a and netstat -rn (feel=20
> free to mangle the IPs, as long as the mangling is a consistent=20
> replacement and not a cut-off).
>=20
> Bye,
> Alexander.
>=20

Hello Alexander and everybody brave enough reading my post.

Somehow I managed it to let=20

"ifconfig_igb1=3D"up"

disappear - I guess by accident when sneaking through the rc.conf file.

igb1 is the physical device connecting to the network. The bridge is layer =
2 only, no IP, only
the vnet-portions pointing towards the jail do have IPv6 and IPv4. The brid=
ge has around 20
members, the last entry is igb1 - I never checked whether it is up ...
Sorry!

Kind regards,

oh

--=20
O. Hartmann

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