iOS VPN Profile Generator
On iOS and macOS, you may use a VPN profile file (.mobileconfig) to setup VPN with one click. Built-in VPNs including IPSec (PSK or certificate based) and IKEv2 are supported by this approach.
This page allows you to generate VPN profile files as needed. All configuration parameters in the profile will be the same as the default values used by iOS and macOS systems.