[lxc-users] Cannot create a macvlan private bridge on lx

[Michael H. Warfield]

On Wed, 2014-08-13 at 17:39 +0000, Anjali Kulkarni wrote:
> Yes, but does this not go through the host? That is, the host's
> eth0(management) has to be in this bridge?

No it does not.  If you're using a NATed bridge, the hosts eth0 is NOT
part of the bridge.

> I want to be able to create
> multiple such bridges, so I cannot add the eth0 of host to every such
> bridge..

Then don't add eth0 to the bridge.  You just create and empty bridge and
go from there.

> This works already, I want a "private" bridge between VM and container,
> which does not go through the host.

> Anjali  

> On 8/13/14 10:36 AM, "CDR" <venefax at gmail.com> wrote:
> 
> >Do a real bridge on the host and use it on both the VM and the
> >container. I do it all the time.
> >
> >On Wed, Aug 13, 2014 at 1:25 PM, Anjali Kulkarni <anjali at juniper.net>
> >wrote:
> >> Thanks - is there any way to do a private bridge between a VM and a
> >> container, so that they can communicate? What's the use case of using
> >> macvlan on a real nic?
> >>
> >> Anjali
> >>
> >> On 8/13/14 9:35 AM, "Serge Hallyn" <serge.hallyn at ubuntu.com> wrote:
> >>
> >>>You can't do macvlan on a bridge.  It has to be done on an real
> >>>physical nic.
> >>>
> >>>Quoting Anjali Kulkarni (anjali at juniper.net):
> >>>>
> >>>> Hi,
> >>>>
> >>>> We are trying to have a VM and a container ping each other via a
> >>>>private
> >>>> bridge (not going through host) via macvlan interface. A bridge,
> >>>>lxcbr1
> >>>>is
> >>>> already created and contains a link from VM, and we want to add
> >>>>container
> >>>> to it as well.
> >>>> To do that, on adding the foll. config to a container, the error shown
> >>>> below is seen, and tips about how to fix this issue?
> >>>>
> >>>> Config:
> >>>> lxc.network.type = macvlan
> >>>> lxc.network.macvlan.mode = bridge
> >>>> lxc.network.flags = down
> >>>> lxc.network.name = eth0
> >>>> lxc.network.link = lxcbr1
> >>>> lxc.network.ipv4 = 1.1.1.1/24
> >>>>
> >>>>
> >>>> Error seen:
> >>>> lxc-start: failed to move 'lxcbr1' to the container : Invalid argument
> >>>> lxc-start: failed to create the configured network
> >>>> lxc-start: failed to spawn 'test'
> >>>> lxc-start: The container failed to start.
> >>>> lxc-start: Additional information can be obtained by setting the
> >>>>--logfile
> >>>> and --log-priority options.
> >>>>
> >>>> Thanks
> >>>> Anjali
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> _______________________________________________
> >>>> lxc-users mailing list
> >>>> lxc-users at lists.linuxcontainers.org
> >>>> http://lists.linuxcontainers.org/listinfo/lxc-users
> >>>_______________________________________________
> >>>lxc-users mailing list
> >>>lxc-users at lists.linuxcontainers.org
> >>>http://lists.linuxcontainers.org/listinfo/lxc-users
> >>
> >> _______________________________________________
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> 
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-- 
Michael H. Warfield (AI4NB) | (770) 978-7061 |  mhw at WittsEnd.com
   /\/\|=mhw=|\/\/          | (678) 463-0932 |  http://www.wittsend.com/mhw/
   NIC whois: MHW9          | An optimist believes we live in the best of all
 PGP Key: 0x674627FF        | possible worlds.  A pessimist is sure of it!

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