Dns Server Address Assignment - ZyXEL Communications NBG-417N - V1.0 Manual

Once you have decided on the network number, pick an IP address that is easy to
remember, for instance, 192.168.1.1, for your NBG-417N, but make sure that no
other device on your network is using that IP address.
The subnet mask specifies the network number portion of an IP address. Your
NBG-417N will compute the subnet mask automatically based on the IP address
that you entered. You don't need to change the subnet mask computed by the
NBG-417N unless you are instructed to do otherwise.

4.4.7 DNS Server Address Assignment

Use DNS (Domain Name System) to map a domain name to its corresponding IP
address and vice versa, for instance, the IP address of www.zyxel.com is
204.217.0.2. The DNS server is extremely important because without it, you must
know the IP address of a computer before you can access it.
The NBG-417N can get the DNS server addresses in the following ways.
The ISP tells you the DNS server addresses, usually in the form of an information
1
sheet, when you sign up. If your ISP gives you DNS server addresses, enter them
in the DNS Server fields in the Wizard and/or WAN > Internet Connection
screen.
If the ISP did not give you DNS server information, leave the DNS Server fields
2
set to 0.0.0.0 in the Wizard screen and/or set to From ISP in the WAN >
Internet Connection screen for the ISP to dynamically assign the DNS server IP
addresses.
NBG-417N User's Guide
Chapter 4 Connection Wizard
49