ZyXEL Communications ZyWall ATP series User Manual page 54

• IP Subnet Mask: Enter the subnet mask for this WAN connection's IP address.
• Gateway IP Address: Enter the IP address of the router through which this WAN connection will send
traffic (the default gateway).
• Server IP: Type the IP address of the L2TP server.
2.1.5.3 WAN IP Address Assignments
• WAN Interface: This is the name of the interface that will connect with your ISP.
• Zone: This is the security zone to which this interface and Internet connection will belong.
• IP Address: Enter your (static) public IP address. Auto displays if you selected Auto as the IP Address
Assignment in the previous screen.
• First / Second DNS Server: These fields display if you selected static IP address assignment. The Domain
Name System (DNS) maps a domain name to an IP address and vice versa. Enter a DNS server's IP
address(es). The DNS server is extremely important because without it, you must know the IP address
of a computer before you can access it. The Zyxel Device uses these (in the order you specify here) to
resolve domain names for VPN, DDNS and the time server. Leave the field as 0.0.0.0 if you do not want
to configure DNS servers.
2.1.5.4 Possible Errors
• Check that you're using the correct L2PT Server IP, Subnet Mask, Gateway IP Address, IP Subnet Mask
and Authentication Type.
• Make sure that your Internet access information uses L2TP as the WAN connection type. Re-enter your
L2TP user name and password exactly as given. If it fails again, check with your Internet service
provider or administrator for correct WAN settings and user credentials.
• If you were given an IP address and DNS server information as part of your Internet access
information, re-enter them exactly as given. If it fails again, check with your Internet service provider
or administrator for correct IP address, subnet mask and gateway address and other WAN settings.
Chapter 2 Initial Setup Wizard
ZyWALL ATP Series User's Guide
54