Native VLAN

[Loevoe]

Hello.

Is it possible to change Native vlan to something else than 1?
If so, just globally, or is it possible to make it per VM?

 

[aaron]

Do you mean, change the mgmt IP to another VLAN?
That should be possible. For example, if you have the mgmt IP on vmbr0 like so for example:

auto vmbr0
iface vmbr0 inet static
    address 192.168.0.100/24
    gateway 192.168.0.1
    bridge-ports enp13s0
    bridge-stp off
    bridge-fd 0

You can remove the IP and gateway config and configure a new VLAN interface with the IP and GW:

auto vmbr0
iface vmbr0 inet manual
    bridge-ports enp13s0
    bridge-stp off
    bridge-fd 0
    
auto mgmtnet
iface mgmtnet inet static
    address 192.168.0.100/24
    gateway 192.168.0.1
    vlan-id 30
    vlan-raw-device vmbr0
#MGMT Vlan interface

If you want to place VMs into VLANs you have multiple options. Either you set it per VM in the network settings of each NIC.
Or you create new vmbr interfaces that use a VLAN interface a bridge-port, or you define the bridge port interface directly on to the physical interface with the VLAN tag, for example: bridge-ports enp13s0.<vlan> or if you want to do that in a cluster, checkout the SDN where you can define your VLANs globally in the cluster.

There are quite a few options to get to your goal when it comes to VLANs