How to create a route between Openvpn server and L2TP client on Mikrotik?

Question

openvpn

Good afternoon!
There is a Mikrotik CRS125-24G router, an OpenVPN server is configured on it, to which remote clients connect, and an L2TP client is also configured with one of the Customers. How to set up routing so that remote clients that connect to the OpenVPN server can see the service IP of the Customer who is connected to the same microtic as an L2TP client.
Openvpn subnet 172.21.108.0/24, gateway 172.21.108.1 Customer subnet
to which it is necessary to redirect traffic from OpenVPN 192.168.155.0/24, gateway 10.10.10.1 Mikrotik itself has routes in L2TP and 192.168.155.1 (service IP on the Customer's side) is available and pinged.
DST-ADDRESS PREF-SRC GATEWAY DISTANCE ADC 10.10.10.1/32 192.168.155.150 l2tp
-zakaz4ik 0
AS 192.168.155.0/24 192.168.155.150 10.10.10.1
Customer's IP. Probably there is not enough route from the OpenVPN network to the Customer's network, but I don't know how to register it.
Tell me please. Thanks

Answer 1

It is likely that the Customer's network does not know anything about your network.

Answer 2

Can you tell me what network you are talking about? I have a connection with him and packets run from Mikrotik to his internal network, I thought I need routing on my side with the Openvpn subnet to the customer's L2TP tunnel? Redirect traffic from one tunnel to another.