ZyXEL Communications ZyWALL USG100-Plus User Manual page 87

Select Do not dial the initial connection and click Next.
6
Enter the domain name or WAN IP address configured as the My Address in the VPN gateway
7
configuration that the ZyWALL is using for L2TP VPN (172.16.1.2 in this example).
172.16.1.2
Click Finish.
8
The Connect L2TP to ZyWALL screen appears. Click Properties > Security.
9
10 Click Security, select Advanced (custom settings) and click Settings.
ZyWALL USG100-PLUS User's Guide
Chapter 4 Create Secure Connections Across the Internet
87