if_bridge stops when running virtualbox 4.1.8

[Paul Schenkeveld]

Oops! wrong list.  Please disregard.

On Sun, Mar 04, 2012 at 07:40:18PM +0100, Paul Schenkeveld wrote:
> Hi,
> 
> I just noticed that when running Virtualbox 4.1.8 with a bridged network
> interface, I loose connectivity to another virtual host running in qemu
> whose network interface is bridged to my ethernet interface.  After
> stopping the Virtualbox instance, I regain connection to the virtual
> host under qemu.  Ifconfig doesn't give a clue.  Has anyone seen this
> behaviour or, even better, have a solution?
> 
> My host is running 8.2-RELEASE, here's the relevant ifconfig output:
> 
> em0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
>         options=2098<VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC>
>         ether 00:1f:16:xx:xx:xx
>         inet 10.0.0.10 netmask 0xffffff00 broadcast 10.0.0.255
>         nd6 options=3<PERFORMNUD,ACCEPT_RTADV>
>         media: Ethernet autoselect (1000baseT <full-duplex>)
>         status: active
> tap0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
>         options=80000<LINKSTATE>
>         ether 00:bd:32:xx:xx:xx
>         nd6 options=3<PERFORMNUD,ACCEPT_RTADV>
>         Opened by PID 13433
> bridge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>         ether 8a:55:3f:xx:xx:xx
>         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: tap0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
>                 ifmaxaddr 0 port 5 priority 128 path cost 2000000
>         member: em0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
>                 ifmaxaddr 0 port 1 priority 128 path cost 20000
> vboxnet0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
>         ether 0a:00:27:00:00:00
> 
> Thanks!
> 
> Paul Schenkeveld
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