ZyXEL Communications ZyWall ATP series User Manual page 425

Go to Configuration > VPN > IPSec VPN > VPN Connection and click Add for IPv4 Configuration to create
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a new VPN connection.
Select Remote Access (Server Role) as the VPN scenario for the remote client.
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Select the NAT router WAN IP address object as the Local Policy.
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Go to Configuration > VPN > L2TP VPN and select the VPN Connection just configured.
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Chapter 22 L2TP VPN
ZyWALL ATP Series User's Guide
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