The original post: /r/linux by /u/swayuser on 2024-12-22 05:48:46.

I’m reading up on IFLA_BR_VLAN_FILTERING for bridges.

Historically, without this feature, I’ve popped vlans off of physical ports, created one bridge per vlan, and assigned all of the vlan ports for a given vlan ID to the bridge for said vlan. Then, I’ve assigned the bridge an IP in the vlan’s subnet.

Now, I’m curious how this might look with IFLA_BR_VLAN_FILTERING. I think with this feature I can create just a single bridge, assign all physical trunk ports to the bridge, and then manage vlans similar to a more traditional switch.

But what happens to IP addresses assigned to this type of bridge? Can they be isolated to a specific VLAN?