[vfio-users] connect bridge without connection to the local network?

thibaut noah thibaut.noah at gmail.com
Thu Apr 28 11:28:26 UTC 2016

Static ip for the host seems to be fine, my only problem is with the guest

Yes i have libvirt installed, so if i enable virbr0 in my host and use it
as a source on my vm i should be fine?

I currently have an interface of type bridge in my xml which uses br-lan (my
host bridge i pasted above) as source, model type is virtio.

2016-04-28 13:15 GMT+02:00 Okky Hendriansyah <okky.htf at gmail.com>:

> On Thu, Apr 28, 2016 at 5:33 PM, thibaut noah <thibaut.noah at gmail.com>
> wrote:
>> So my cpl died last night, thus i cannot connect to my freebox and my
>> local network (neither internet obviously).
>> From what i understand of a bridge it should be possible to still have a
>> connection between my host and my guest even though i don't have a cable
>> plug in my ethernet card since it is a software bridge?
>> I have a samba share on my zfs which contains all my datas and i want to
>> be able to access them during the few days i will spend without connection
>>  (i need some time to buy a new cpl).
>> Apparently i would need to use static ip for this?
>> I modify my netctl bridge file according to this though i don't
>> understand everything.
>> Seems my ip adress would be, what is the /24 for? and can i put
>> just anything for the ip adress?
>> This file is enough for my vm to boot with the bridge on though synergy
>> fails to launch (cannot find a local network).
>> I assume the ideal solution would be to create a virtual local network
>> with my guest and host only though i don't know what will happen when the
>> internet will come back.
>> Description="Local bridge network"
>> Interface=br-lan
>> Connection=bridge
>> BindsToInterfaces=(enp6s5)
>> #IP=no
>> IP=static
>> IPCustom=('addr add dev br-lan brd +' )
>> Address=('')
>> DNS=('' '')
> Hi,
> You need to define static IP for both the host and the guest. As long as
> you setup the same netmask (/24) and the same subnet (10.0.0.x) between the
> two, I think you can do fine. Have you installed libvirt? It is not
> mandatory, but by default libvirt installs a bridged network profile in the
> host (virbr0) that is contained to only between the host and the guests.
> You can use that bridge if you do not have access to a router/DHCP server.
> Best regards,
> Okky Hendriansyah
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