Planet Technology ADSL 2/2+ Router ADE4400v2 - Manual (Page 36)

3.5.3 DNS
Go to Interface -> LAN to enable DHCP server. Then you can set DNS server for the
router. A Domain Name system (DNS) server is like an index of IP addresses
and Web addresses. If you type a Web address into you browser, a DNS server will
find that name in its index and find the matching IP address.
Most ISPs provide a DNS server for speed and convenience. Since your Service
Provider many connect to the Internet with dynamic IP settings, it is likely that the
DNS server IP addresses are also provided dynamically. However, if there is a DNS
server that you would rather use, you need to specify the IP address below.
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