Connecting PA Subnet between data center

Hello

Currently, I have a Server in a Data Center with an associated PA Subnet. I would now like to create a Tunnel to another Data Center to use the same PA Subnet. I already tried to do this with a OpenVPN Point-to-Point configuration with TAP interfaces. This seems to work quite well.

So did I already find the perfect way to solve this issue? Or is there maybe a better solution to this problem?