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Date:      Wed, 18 Jan 2006 14:31:28 -0600
From:      Kevin Day <toasty@dragondata.com>
To:        "Dave Raven" <dave@raven.za.net>
Cc:        freebsd-net@FreeBSD.org
Subject:   Re: em driver + VLAN's
Message-ID:  <7FFD38BE-1F95-48B1-B4D6-39A835C62CFB@dragondata.com>
In-Reply-To: <20060118150533.AA33C43D9D@mx1.FreeBSD.org>
References:  <20060118150533.AA33C43D9D@mx1.FreeBSD.org>

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On Jan 18, 2006, at 9:05 AM, Dave Raven wrote:

> FreeBSD 4.9 - char em_driver_version[] = "1.7.16";
>
> I've tried multiple bridge configurations - from bridging just  
> em0,em1 to
> bridging two vlan's attached to each card. Unfortunately I don't  
> have access
> to the box at the moment - if its still necessary I will fetch the
> information tomorrow (ifconfig etc)
>
> To sum up its something like the following
> 	net.inet.ether.bridge_config=em0,em1
> 	net.inet.ether.bridge=1
>
> Or vlan0,vlan1 with:
> 	ifconfig vlan0 create
> 	ifconfig vlan1 create
> 	ifconfig vlan0 vlan 100 vlandev em0
> 	ifconfig vlan1 vlan 100 vlandev em1
>
>
> If I change to using fxp it immediately works..
>
> Thanks for the help
> Dave
>


Try adding:

ifconfig em0 promisc
ifconfig em1 promisc


We found it was necessary in a few situations with em devices and  
bridging.




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