Access via OVPN to the second subnet on Mikrotik?

Question

Mikrotik

Good day fellow citizens)
I ask for help in the following question.
There are 2 Mikrotiks connected by OVPN, they see each other and go to each other's subgrids. On the side of the client Mikrotik, another internal subnet comes to port 4. How to set up routing between all of them?
Thanks in advance for your replies

Answer 1

Add "another internal subnet" routes on both devices, thus telling routers where to send packets.

Answer 2

>>> On the side of the client Mikrotik, another internal subnet comes to port 4.
Mikrotik should be GW for this network, if not, then:
- on each client of this write routes to another network through Mikrotik
or
- on Mikrotik masquerade (NAT) traffic between networks
or
- on the network router (which comes to port 4) register the route to the desired network via Mikrotik