ZyXEL ZyWALL ATP700 User Guide - Page 464
Example: L2TP and Zyxel Device Behind a NAT Router
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Chapter 21 L2TP VPN Table 176 Configuration > VPN > L2TP VPN (continued) LABEL DESCRIPTION Authentication Server Certificate Allowed User Select the certificate to use to identify the Zyxel Device for L2TP VPN connections. You must have certificates already configured in the My Certificates screen. The certificate is used with the EAP, PEAP, and MSCHAPv2 authentication protocols. The remote user must log into the Zyxel Device to use the L2TP VPN tunnel. Keep Alive Timer First DNS Server, Second DNS Server Select a user or user group that can use the L2TP VPN tunnel. Use Create new Object if you need to configure a new user account. Otherwise, select any to allow any user with a valid account and password on the Zyxel Device to log in. The Zyxel Device sends a Hello message after waiting this long without receiving any traffic from the remote user. The Zyxel Device disconnects the VPN tunnel if the remote user does not respond. Specify the IP addresses of DNS servers to assign to the remote users. You can specify these IP addresses two ways. Custom Defined - enter a static IP address. First WINS Server, Second WINS Server Apply Reset From ISP - use the IP address of a DNS server that another interface received from its DHCP server. The WINS (Windows Internet Naming Service) server keeps a mapping table of the computer names on your network and the IP addresses that they are currently using. Type the IP addresses of up to two WINS servers to assign to the remote users. You can specify these IP addresses two ways. Click Apply to save your changes in the Zyxel Device. Click Reset to return the screen to its last-saved settings. 21.2.1 Example: L2TP and Zyxel Device Behind a NAT Router If the Zyxel Device (Z) is behind a NAT router (N), then do the following for remote clients (C) to access the network behind the Zyxel Device (Z) using L2TP over IPv4. Figure 328 L2TP and Zyxel Device Behind a NAT Router 1 Create an address object in Configuration > Object > Address/GEO IP > Address for the WAN IP address of the NAT router. ZyWALL ATP Series User's Guide 464
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