The VPN client in macOS supports the "L2TP over IPsec" standard, but it doesn't support the newer IPsec VPN or OpenVPN industry standards found on most third party VPN devices.
VPN Tracker supports IPsec (IKEv1 + IKEV2), L2TP, PPTP, OpenVPN, SSL, SSTP, and WireGuard® VPN and has predefined settings designed to work with the majority of VPN devices on the market. We also offer
configuration guides that explain in detailed steps exactly how-to set up your VPN device.
In addition to being compatible with more devices than macOS, VPN Tracker also makes working over VPN much more comfortable: VPN Shortcuts make connecting to the file servers, applications and devices over VPN as easy as working locally.
Since macOS Sierra 10.12 the macOS built in VPN client no longer supports PPTP connections. In order to start a PPTP connection on a Mac running macOS High Sierra or newer, you will need to use an external VPN client like
VPN Tracker.