IPSec Tunnels
From Wiki of WFilter NG Firewall
IPSec use the IPSec protocol to achieve remote access to a VPN technology, the full name is Protocol Security, The Internet Engineering Task Force Internet (IETF) defined as the security standard framework, , with the end of the public and private network to provide end-to-end encryption and authentication services.
1 Tunnels
Enter the same shared key, check the same IKE and ESP, click save.