I once again faced roaming issues using snapshot in mt7622, with a vlan-aware bridge over all switchports. And yet antother bridge interface used to hook in the wifi ifaces. This time the mac Andreas was not stale pointing towards wifi iface but to the dsa interface, leading to similar issues. So i assume this is simply broken.

Next idea i'm trying is to have vlan-unware bridges per vlan. Can anyonr confirm such a setup is in General valid for openwrt? (Dot1q interface afaict dont seem to require explicit config as they are implicitly created when poiting to a "subinterface".

```
config device 'vlan_40'
	option name 'br-dhcp' 
	option type 'bridge'
	option ports 'wan.40 lan1.40 lan2.40 lan3.40 lan4.40'
                    
config device 'vlan_untagged'
	option name 'br-prdhcp' 
	option type 'bridge'
	option ports 'wan lan1 lan2 lan3 lan4'

```

In both bridges there are wifi ifaces hooked onto.

While br-dhcp forwards fine in all directions (lan-lan, lan-wifi, wifi-lan), the br-prdhcp which shall be transported untagged on the wire doesnt work that well. lan-wifi, wifi-lan work fine, but lan-lan is broken. In fact only BUM frames are forwarded from one switchport to another.

I'm really lost here, as we are carrying that issue for too long time and it prevents us from refactoring our network config automation at freifunk berlin.