Re: [Xen-users] VLAN in Linux Bridge

["J. Roeleveld" <joost@xxxxxxxxxxxx>]

On Friday, July 04, 2014 01:26:59 PM Simon Hobson wrote:
> mad Engineer <themadengin33r@xxxxxxxxx> wrote:
> >             I have 10 vms connected to linux bridge br0
> >   
> >   and in br0 i have eth0.100 , (VLAN 100)
> > 
> > now i am trying make these  vms in two VLAN  so that they wont communicate
> > through that bridge, is it possible with linux bridge?
> > 
> > how can i make vms in two VLAN with out configuring VLAN inside VM?
> > 
> > Do i need two separate bridges one with vlan 100 (eth0.100) and other with
> > vlan 101(eth1.101)  to achieve this.
> > 
> > any way to make it work in single Linux bridge.
> > 
> > I know its possible with Open vswitch,is there any way to make it work 
> > with Linux Bridge
> AFAIK you have to do all the external VLANs on Dom0. SO if you wanted to
> work with VLANs10,20,30, and 40 you might setup br10, br20, br30, and br40
> with eth0.10 in br10 and so on. You can then attach each DomU to as many or
> few of the VLANs as needed with multiple virtual NICs.
> 
> If all you want is for two DomUs on the same host to be able to communicate
> via a private network, then create another bridge, don't attach any NICs or
> VLANs to it, and attach a virtual NIC to each DomU for this bridge - ie you
> don't need to use VLANs for that. Logically, it's the same as having two
> physical machines sat side by side, and hooking them together via a small
> switch not connected to anything else.

+1

This is how I do it on my server.

--
Joost

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