I manage to succeed something. I add in routes of these two routers in destinatiom address whole subnet of second router amd gateway set to l2tp, which I with main router have access to them. Do in my main router i have l2tp connection over ipsec.
And now two routers can communicate and can see anything in the network but problem is that some pc in one network cant see pc in another.
Just to make clear, what is your type of network, please confirm if your network looks like THIS
1. Which of these routers are MikroTiks?
2. What are their private IPs?
3. Is router1 and router2 connected to router3 vai Internet?
4. Is router3 doing anything else, or is it just a VPN server for the others? Just asking if it's possible to eliminate it.