Internet Protocol Security VPN (or IPsec VPN) is a technology to connect two private networks securely over the public Internet. Sauce Labs offers IPSec VPN that enables a secure connection between an application under test that is hosted on a private network or a local machine, and the Sauce Labs virtual machine that hosts the testing platform. Topics in this section cover IPSec VPN architecture, setting up IPSec VPN, and IPSec VPN troubleshooting tips.