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2.2.8 DNS
A Domain Name System (DNS) server is like an index of IP addresses and
Web addresses. If you type a Web address into your browser, such as
www.router.com, a DNS server will find that name in its index and the
matching IP address. Most ISPs provide a DNS server for speed and
convenience. If your Service Provider connects you to the Internet with
dynamic IP settings, it is likely that the DNS server IP address is provided
automatically. However, if there is a DNS server that you would rather use,
you need to specify the IP address of that DNS server here.
Parameters Description
Domain Name Server (DNS) Server This is the ISP’s DNS server IP
address that they gave you; or you
can specify your own preferred DNS
server IP address
Secondary DNS Address (optional) This is optional. You can enter
another DNS server’s IP address as
a backup. The secondary DNS will
be used should the above DNS fail.