ZyXEL Communications ZyWALL USG-Series - Page 90

Chapter 4 Create Secure Connections Across the Internet
ZyWALL USG 20-2000 User’s Guide
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12 Click IPSec Settings.
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.
14 Click Networking. Select L2TP IPSec VPN as the Type of VPN. Click OK.