We have a server where we want to connect other servers and clients via VPN. In some circumstances, I want full network traffic to be routed, so that the client's public IP address becomes the same as the server's public IP. This works as is out of the box.
But what I want in addition are clients who can connect to the LAN, have access to the private IP block, but NOT route their internet traffic through the VPN. I'm using OpenVPN for client and server access.
How can I set this up? Is this a configuration I can set on the client configuration on the client itself, or is this have to be done on the server?