Found a solution over here.
The catch was:
On router, add VLAN10 to bridge, together vith EoIP tunnel.
On AP, add EoIP to bridge1 and ‘attach’ VLAN to bridge1
To bridge2 add vAP and VLAN10
Something like this:
/interface vlan
add interface=bridge1 l2mtu=65531 name=vlan10 vlan-id=10
/interface bridge port
add bridge=bridge1 interface=EoIP-tunnel
add bridge=bridge2 interface=Virtual-AP-Interface
add bridge=bridge2 interface=vlan10
Hope it helps to someone…
Matej