Technical Tip: How to perform a basic VPN L2TP with Native Windows

[bkarl]

Description	This article describes how to set a basic VPN L2TP between FortiGate and Windows 10 VPN.  The FortiGate and remote PC were performed on VMware as an example of deployment.
Scope	FortiGate VM v7.2.3, Windows 10.
Solution	Login to the firewall and go to VPN -> IPsec Wizard and type a name. For this example L2TP. Define the Template type in this scenario will be 'Remote Access' and the Remote device type will be 'Native'.      2. Now, the Authentication step defines the Incoming Interface (WAN interface or the interface which faces the ISP). The authentication method will be Pre-Shared Key will be test123 and define the User Group (it is possible to define them previously).      3. The Policy and Routing step asks to define the local interface (LAN) and the local address. In Local Address, it is possible to define an Address Object or Address Group and Finally define the Remote or client address range including the subnet mask and Finally finish the configuration on the FortiGate side.      4. On Windows, go to settings and Network Settings choose VPN and create a new and set the parameters that were configured previously on FortiGate. Finally, select connect option and the connection will be established.