pfSense

When defining the tunnel network to be used in an openvpn site-to-site tunnel, if you define a /31 network, the configurator incorrectly assumes a /30 network even as a /31 is perfectly fine for openvpn.

ie. 10.1.1.4/31 is 10.1.1.5 and 10.1.1.6 in actual configuration when it should be 10.1.1.4 and 10.1.1.5

There are likely some other issues with ptp link address handling with gateways and interfaces as well...