Hello I'm almost there. I did setup openVPN on server and exported the ovpn file and imported this on client machine. So far so good.
Unfortunately the route is not set if the connection is estabilished. If I add the route manually on the client side as following...
ip route add 192.168.100.0/24 via 10.0.100.1
... then I can access the remote machines. So what am I missing?
I did make sure to enter the IPv4 Local Network:
(https://forum.opnsense.org/index.php?action=dlattach;topic=24479.0;attach=18519)
Best regards
Floh