[ovirt-users] macvlan + IPv6

[Jay Turner]

Under virt-manager, the vf inside macvlan-test-2 does get a different MAC
address with each boot.  However that MAC address does not appear back on
the host.  In fact no MAC addresses appear on the VFs themselves (which is
a difference in behavior as compared to oVirt):

5: ens4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode
DEFAULT qlen 1000
    link/ether e4:1d:2d:fd:8b:9a brd ff:ff:ff:ff:ff:ff
    vf 0 MAC 00:00:00:00:00:00, spoof checking off, link-state auto
    vf 1 MAC 00:00:00:00:00:00, spoof checking off, link-state auto
    vf 2 MAC 00:00:00:00:00:00, spoof checking off, link-state auto
    vf 3 MAC 00:00:00:00:00:00, spoof checking off, link-state auto
    vf 4 MAC 00:00:00:00:00:00, spoof checking off, link-state auto
    vf 5 MAC 00:00:00:00:00:00, spoof checking off, link-state auto
    vf 6 MAC 00:00:00:00:00:00, spoof checking off, link-state auto
    vf 7 MAC 00:00:00:00:00:00, spoof checking off, link-state auto

- jkt


On Sun, Feb 28, 2016 at 12:13 AM Dan Kenigsberg <danken at redhat.com> wrote:

> On Thu, Feb 25, 2016 at 06:28:30PM +0000, Jay Turner wrote:
> > Attached.
> >
> > macvlan-1.xml is from oVirt (and includes the VF MAC address)
> > macvlan-test-2.xml is from virt-manager (and does not include the VF MAC
> > address)
>
>
> > <domain type='kvm' id='2'>
> ...
> >     <interface type='bridge'>
> >       <mac address='00:1a:4a:16:01:51'/>
> >       <source bridge='ovirtmgmt'/>
> >       <target dev='vnet0'/>
> >       <model type='virtio'/>
> >       <filterref filter='vdsm-no-mac-spoofing'/>
> >       <link state='up'/>
> >       <alias name='net0'/>
> >       <address type='pci' domain='0x0000' bus='0x00' slot='0x03'
> function='0x0'/>
> >     </interface>
> >     <interface type='hostdev'>
> >       <mac address='00:1a:4a:16:01:52'/>
> >       <driver name='vfio'/>
> >       <source>
> >         <address type='pci' domain='0x0000' bus='0x02' slot='0x00'
> function='0x1'/>
> >       </source>
> >       <alias name='hostdev0'/>
> >       <address type='pci' domain='0x0000' bus='0x00' slot='0x08'
> function='0x0'/>
> >     </interface>
> ...
> > </domain>
>
> > <domain type='kvm' id='12'>
> ...
> >     <interface type='network'>
> >       <mac address='52:54:00:22:54:ba'/>
> >       <source network='default' bridge='virbr0'/>
> >       <target dev='vnet0'/>
> >       <model type='virtio'/>
> >       <alias name='net0'/>
> >       <address type='pci' domain='0x0000' bus='0x00' slot='0x03'
> function='0x0'/>
> >     </interface>
> ...
> >     <hostdev mode='subsystem' type='pci' managed='yes'>
> >       <driver name='vfio'/>
> >       <source>
> >         <address domain='0x0000' bus='0x02' slot='0x01' function='0x2'/>
> >       </source>
> >       <alias name='hostdev0'/>
> >       <address type='pci' domain='0x0000' bus='0x00' slot='0x08'
> function='0x0'/>
> >     </hostdev>
> ...
> > </domain>
>
>
> Thanks.
>
> Does the guest of your macvlan-test-2 see the random mac address
> assigned to the host VF? If so, it means that it would have another mac
> address on the next time it starts, which is violate the IaaS that oVirt
> would like to expose to its guests.
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ovirt.org/pipermail/users/attachments/20160229/bbc24dd3/attachment.html>