ZyXEL Communications ISG50-ISDN User Manual page 61

Note: Enter the Internet access information exactly as given to you by your ISP.
Figure 37 Internet Access: Ethernet Encapsulation
• Encapsulation: This displays the type of Internet connection you are configuring.
• First WAN Interface: This is the number 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.
The following fields display if you selected static IP address assignment.
• 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).
• 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 ISG50 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.
ISG50 User's Guide
Chapter 4 Installation Setup Wizard
61