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②
Check the
Select DNS Server Interface from available WAN interfaces
option
if the device gets a DNS
address automatically from an upstream device.
Or select the
Use the following Static DNS IP address
option and
enter static DNS server address provided by your ISP.
③
Click
Apply/Save
at the bottom of the page.
For IPv6
①
Click
Advanced Setup
>
DNS
>
DNS Server
, and enter the screen below.
②
Select the
Obtain IPv6 DNS info from a WAN interface
option if the device gets a DNS server address from
the upstream device automatically. And select a configured WAN interface for the IPv6 DNS server information.
Or select the
Use the following Static IPv6 DNS address
option and enter the static IPv6 DNS server address
provided by your ISP.
③
Click
Apply/Save
.
NOTE
1.
In ATM mode, if only a single PVC with IPoA or static IPoE protocol is configured, Static DNS server IP addresses
must be entered.
2.
If you are not clear about the static DNS server IP information, ask your ISP to provide it.
3.
The default settings are recommended if you are unsure about the DNS server addresses. If a wrong DNS server
address is configured, webpages may not be open.
Dynamic DNS (DDNS)
If your Internet service provider (ISP) gave you a static (fixed) public IP address, you can register a domain name and
have that name associated with your IP address by public Domain Name Servers (DNS). However, if your ISP gave you
a dynamic (changing) public IP address, you cannot predict what your IP address will be, and the address can change
frequently. In this case, you can use a commercial Dynamic DNS service. It allows you to register your domain to their
IP address and forward traffic directed at your domain to your frequently changing IP address. If your ISP assigns a
private WAN IP address (such as 192.168.x.x or 10.x.x.x), the Dynamic DNS service does not work because private
