[ovirt-users] Passing VLAN trunk to VM

[Edward Haas]

On Sun, Mar 12, 2017 at 3:43 PM, Rogério Ceni Coelho <
rogeriocenicoelho at gmail.com> wrote:

> I think you define vlans on vm virtual nic OS like you do as usual. Monday
> i will try and share results. Bye.
>
> Em Dom, 12 de mar de 2017 10:40, FERNANDO FREDIANI <
> fernando.frediani at upx.com> escreveu:
>
>> Great !
>>
>> What about a range of VLANs, is it also supported ?
>>
>
That was the OVS note all about, only with an OVS bridge it is possible to
define/select the vlans which are exposed
to the VM vnic. But this is not available at the moment.
As Rogério mentioned, define the VLAN/s on the VM vnic.


>> 2017-03-11 17:47 GMT-03:00 Edward Haas <ehaas at redhat.com>:
>>
>> Passing a trunk to the vnic is supported long ago.
>> Just create a network over a nic/bond that is connected to a trunk port
>> and do not define any VLAN (we call it non vlan network).
>> In oVirt, a non-vlan network will ignore the VLAN tag and will forward
>> the packets as is onward.
>> It is up to the VM vnic to define vlans or use a promisc mode to see
>> everything.
>>
>> OVS can add a layer of security over the existing, by defining explicitly
>> which vlans are allowed for a specific vnic, but it is not
>> currently available.
>>
>>
>> On Thu, Mar 9, 2017 at 11:40 PM, Simon Vincent <sv at srvincent.co.uk>
>> wrote:
>>
>> I was wondering if open vswitch will get round this problem. Has anyone
>> tried it?
>>
>> On 9 Mar 2017 7:41 pm, "Rogério Ceni Coelho" <rogeriocenicoelho at gmail.com>
>> wrote:
>>
>> Hi,
>>
>> Ovirt user interface does not allow to input 4095 as a tag vlan number
>> ... Only values between 0 and 4094.
>>
>> This is useful to me too. Maybe any other way ?
>>
>> Em qui, 9 de mar de 2017 às 16:15, FERNANDO FREDIANI <
>> fernando.frediani at upx.com> escreveu:
>>
>> Have you tried use Vlan 4095 ? On VMware it used to be the way to pass
>> all Vlans from a vSwitch to a Vlan in a single port. And yes I have used it
>> also for pfSense.
>>
>> Fernando
>>
>> On 09/03/2017 16:09, Simon Vincent wrote:
>>
>> Is it possible to pass multiple VLANs to a VM (pfSense) using a single
>> virtual NIC? All my existing oVirt networks are setup as a single tagged
>> VLAN. I know this didn't used to be supported but wondered if this has
>> changed. My other option is to pass each VLAN as a separate NIC to the VM
>> however if I needed to add a new VLAN I would have to add a new interface
>> and reboot the VM as hot-add of NICs is not supported by pfSense.
>>
>>
>>
>>
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