On Thu, Aug 22, 2019 at 1:18 PM Miguel Duarte de Mora Barroso <mdbarroso@redhat.com> wrote:
On Wed, Aug 21, 2019 at 9:18 AM <ernestclydeachua@gmail.com> wrote:
>
> good day
> currently i am testing oVirt on a single box and setup some tagged vms and non tagged vm.
> the non tagged vm is a firewall but it has limitations on the number of nic so i cannot attach tagged vnic and wish to handdle vlan tagging on it
>
> is it possible to pass untaged franes internally?

I think it would fallback to the linux bridge default configuration,
which internally tags untagged frames with vlanID 1, and untags them
when exiting the port. Unless I'm wrong (for instance, we change the
bridge defaults), this means you can pass untagged frames through the
bridge.

Adding Edward, to keep me honest.



I am unsure if I got the problem.
If you connect an untagged logical network to a vNIC (virtual NIC of a VM), all untagged Ethernet frames will be forwarded from the host interface (physical NIC or bond).
If no tagged logical network is attached to this host interface, VLAN tag filtering is not activated and even tagged Frames would be forwarded to the vNC.

Does this answer the question?

 


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