Site to site Wireguard - traffic from LAN to LAN not passing through.

RouterOS Beginner Basics
1

Hello.
I have 3 sites with MikroTik routers: site R, site S and site O.
I have created the Wireguard tunnel between each site using this tutorial: https://systemzone.net/wireguard-site-to-site-vpn-between-mikrotik-routeros-7/
Here are the results I got:
The tunnel is established between R and S, R and O, S and O.
From each router you can ping LAN devices behind another router.
From site R LAN device I can ping site’s O LAN devices and vice versa.
From site S LAN device I can ping site’s O LAN devices and vice versa.
The problem:
I can’t ping LAN devices from R to S and vice versa.
There is a network diagram to visualize the situation:

Can someone give me a resolution or a hint how to make it work?

2

The image didnt come through,
Also you need to post the three configs.
/export file=anynameyouwish ( minus router serial #, any public WANIP information, keys etc.).


Also I am most interested, in how you set this up with more clarity.
Did you make R the central router (server for handshake) and O and S (as clients during handshake) connect to R, for example…

3

@ anav,

maybe the OP was trying to say that he made a triangle shaped site to site wg tunnels. r-s-o. its a fully meshed tunnels.

and his problem was :
one of the tunnel seemed not forwarding any traffic (pings).

4

Thats what it seems like but want to make sure, also why as its more complex then usually necessary but one never knows until the requirements are made clearer.