Hello,
I assume the connection is working now, but the issue is with LAN to LAN communication. Is that correct?
If so, the configurations will depends on your requirements.
On the client (RUT), if you want to reach servers LAN, you need to add a route to server’s LAN in push options (available via WebUI). For example, if the server’s LAN is 192.168.5.0/24:
route 192.168.5.0 255.255.255.0
If you need to reach clients (RUT) LAN from the server, you need to associate the RUT’s LAN network with this specific TLS client. For this, on the server you need to add a TLS client (RUT) with a cert name to the ccd directory and define a route to this client (iroute). Please, take a look a these posts here and here.
You can find more information about OpenVPN here.
Kind Regards,