ZyXEL Communications 200 Series - Manual (Page 424)

Chapter 26 L2TP VPN Example
ZyWALL USG 100/200 Series User’s Guide
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Figure 314 L2TP to ZyWALL Properties > Security
13 Select the Use pre-shared key for authentication check box and enter the pre-shared
key used in the VPN gateway configuration that the ZyWALL is using for L2TP VPN.
Click OK.
Figure 315 L2TP to ZyWALL Properties > Security > IPSec Settings
14 Click Networking. Select L2TP IPSec VPN as the Type of VPN. Click OK.
Figure 316 L2TP to ZyWALL Properties: Networking
15 Enter the user name and password of your ZyWALL account. Click Connect.