Ubuntu Server 14.04.1 How To setup OpenVPN server on a seperate machine than the LAN gateway (with access to other machines on server LAN)
Make sure your openvpn LAN is not the usual 192.168.1.1 or 10.0.0.1. If it is, log in to your router and change the third number ie. 192.168.(this number).1
Make sure to forward port 1194 on your router to the OpenVPN server IP
Example Network: