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Date:      Wed, 15 Aug 2012 17:12:11 -0700
From:      Kurt Buff <kurt.buff@gmail.com>
To:        FreeBSD Questions <freebsd-questions@freebsd.org>
Subject:   Re: Re[2]: vlan tagging in releng/8.3 not working
Message-ID:  <CADy1Ce51JhmCWLH4x43H3dd3eQczw3NjWCUMeA2LVjwreZFSSw@mail.gmail.com>
In-Reply-To: <1207405505.20120815211752@yandex.ru>
References:  <CAHzLAVF+YgSJ=TEj0CXiostAb9fb5ipcBhBJ99a_ayGPAFbMWg@mail.gmail.com> <CAHzLAVF+hEfwVrteX-=506Rpf7EHQKDVaYObQW9VGtaxfZgQEQ@mail.gmail.com> <1207405505.20120815211752@yandex.ru>

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On Wed, Aug 15, 2012 at 11:17 AM, Eugen Konkov <kes-kes@yandex.ru> wrote:
>
> RM> On Mon, Aug 13, 2012 at 3:39 PM, Rick Miller
> RM> <vmiller@hostileadmin.com> wrote:
>>> Hi All,
>>>
>>> I am running the latest releng/8.3 on a HP DL360 with an Intel 82599
>>> 10G NIC using the ixgbe driver.  Without vlan tagging, tcpdump sees
>>> traffic on the default vlan.  With vlan tagging there is no traffic on
>>> the interface.  Wondering if anyone else has seen similar and/or might
>>> be able to provide some additional information?
>>>
>>> I'm not seeing anything in syslog.  The interface is configured via rc.conf:
>>>
>>> cloned_interfaces="vlan0"
>>> ifconfig_vlan0="inet 10.x.x.x  netmask=255.255.255.0 vlan $id vlandev ix0"
>
> RM> I was missing ifconfig_ix0="up" in rc.conf.  After inserting this, it worked!
>
> that is old bug of FreeBSD: interfaces do not auto up if there is only
> vlan interfaces

>From my experience, such a line is also required if they are detected
by the OS but otherwise unconfigured with an IP address. I've had to
do this machines that have multiple NICs, where one or more is
un-numbered but used for monitoring, such as when running ntop and
monitoring a switch via the span/mirror port connected to the
un-numbered NIC.

Kurt



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