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Date: Wed, 18 Mar 2009 16:03:55 -0700
From: Sam Leffler <sam@freebsd.org>
Organization: FreeBSD Project
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To: Andrew Thompson <thompsa@freebsd.org>
References: <4C8BEF98-B6EF-4B26-9649-F0666A837230@lassitu.de>
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Cc: FreeBSD Current <freebsd-current@freebsd.org>,
	Stefan Bethke <stb@lassitu.de>
Subject: Re: ifconfig bridge0 does not list bridge data?
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Andrew Thompson wrote:
> On Wed, Mar 18, 2009 at 11:47:39PM +0100, Stefan Bethke wrote:
>   
>> I've just set up a new home router with current.  I'm using if_bridge(4) to 
>> bridge an OpenVPN connection to the local ethernet.  Although everything 
>> seems to be working fine, ifconfig does not show bridge parameters:
>>
>> # ifconfig bridge0
>> bridge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 
>> 1500
>> 	ether 3a:30:67:76:af:05
>> 	inet 10.0.0.1 netmask 0xffffffc0 broadcast 10.0.0.63
>>
>> In a VMware sandbox with a 10-day old -current, I get the expected output:
>>
>> # ifconfig bridge0
>> bridge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 
>> 1500
>> 	ether ca:26:3c:e3:7e:00
>> 	inet 10.0.0.14 netmask 0xffffffc0 broadcast 10.0.0.63
>> 	id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15
>> 	maxage 20 holdcnt 6 proto rstp maxaddr 100 timeout 1200
>> 	root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0
>> 	member: em0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
>> 	        ifmaxaddr 0 port 1 priority 128 path cost 20000
>> 	member: tap0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
>> 	        ifmaxaddr 0 port 4 priority 128 path cost 2000000
>>
>> I also have two vlans hanging off em0.
>>
>> Any ideas?
>>     
>
> This means that one of the BRDGGCACHE, BRDGGTO or BRDGPARAM ioctls has
> failed so bridge_status() in sbin/ifconfig/ifbridge.c exits early (the
> function that prints the info you are missing). Is it possible your
> sources are out of sync? If you look at it with kdump then the actual
> ioctl these are wrapped in is called SIOCGDRVSPEC
>
>   
Try backing out r189864.

    Sam