3 Configure Connection name for you to identify the VPN configuration.
4 Set Server name or address to be the ZyWALL/USG’s WAN IP address
(172.124.163.150 in this example).
5 Select VPN type to Layer 2 Tunneling Protocol with IPsec (L2TP/IPsec).
6 Enter User name and Password which the same as Allowed User created in
ZyWALL/USG (L2TP_Remote_Users/zyx168 in this example).
7 Go to Control Panel > Network and Internet > Network Connections and right
click Properties. Continue to Security > Advanced settings and select Use
Certificate for authentication.