[SOLVED] Proxmox, openvswitch and no vlan setting in container is letting see the container all vlans

devzero

New Member
May 13, 2025
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Hello,

I am running a Proxmox environment with openvswitch where some containers should be have added some vlan ids in trunk mode.
That works well, however if no entry is yet configured, the specific container is able to see all vlans.

Is there a method to configure openvswitch or proxmox, that if the container has no vlan set, that no traffic is seen on a specific interface?

thanks Martin
 
Not setting any VLAN Tag is always equivalent to creating a trunk port with all VLANs allowed, there's currently no other option other than not attaching the interface in the first place or setting the 'disconnect' parameter instead.