What will you be using for you VPN connection? Is this a site to site connection or will this be a user to site connection?
If you’re setting up PepVPN between two sites you can follow this guide here. This will cover using both IC2 and creating a profile directly on the device.
If you’re looking to setup a device to user VPN we have a guide here that walks though setting up L2TP on the Peplink side and on various operating systems.