WAN+LAN on through the same LINK

HI all
I need some help if it possible to make this configuration:

Can I use Poit-to-Point Link for WAN and for LAN in the same time. In the first RB comes main WAN Link (right RB), in the same RB comes traffic for my LAN clients in this RB there are 2 Wireless cards in 2.4 GHz.
In the second RB (left RB) comes main WAN traffic which than goes to MAIN Router OS in interface 1 which has Public IP.
From Interface 2 of MAIN Router OS comes LAN traffic on the second RB (Left RB) in ether2 and than again goes to first RB (right RB) which uses Wireless cards to send LAN traffic to the clients.
Infrastructure.jpg
Any suggestions, thanks for help!!!

vlan’s or EoIP, and just bridge them to what you want…

Thanks for your answer can you help me how to set it up???

Thanks for your answer can you help me how to set it up???

I tried to create VLAN on Wireless interface and than it stoped working.
VLAN.JPG
I created the same in other end but not working, am I missing something?

I have created in 2 sides:
Right RB: VLAN1(ID=1), VLAN2(ID=2) on 5 GHz interface
Left RB: VLAN1(ID=1), VLAN2(ID=2) on 5 GHz interface

Than I created 2 bridges:
Right RB: WAN-Bridge and put VLAN1+ether1 , LAN-Bridge and put VLAN2+ether2,3
Left RB: WAN-Bridge and put VLAN1+ether1 , LAN-Bridge and put VLAN2+ether2,3

But again it does not work, what else I need to do???

Just use EoIP, it’s more easy to managed for you…

Add one EoIP for Wan (id 10) and another for Lan (id 11).

Can you give me some advices how to set them up? Do I need bridges? In which mode must be the link for the moment is in WDS can I use it? Do I need to put IP on Wireless or in Bridge or …