Technical Reference
OPEN824RL / RLW ADSL / VoIP Routers
52
DNS
A Domain Name System (DNS) contains a mapping table for domain name and IP addresses. On the Internet,
every host has a unique and user-friendly name (domain name) such as www.helloworld.com and an IP
address. An IP address is a 32-bit number in the form of
xxx.xxx.xxx.xxx
, for example 192.168.1.254. You can
think of an IP address as a telephone number for devices on the Internet, and the DNS will allow you to find
the telephone number for any particular domain name. As an IP Address is hard to remember, the DNS
converts the friendly name into its equivalent IP Address.
To Set Up DNS:
From the
Configuration
menu list,
step 1
Click
WAN
, then
DNS
. The following appears:
step 2
Check
the
Enable
checkbox.
step 3
Click
Apply.
Usually when you choose PPPoE or PPPoA as your WAN - ISP protocol, the ISP will provide the DNS IP
address automatically. You may leave the configuration field blank.
Alternatively, your ISP may provide you with their DNS IP Address. If this is the case, you must enter the DNS
IP address manually.
If you choose one of the other three protocols
─
RFC1483 Routed/Bridged and IPoA check with your ISP, it
may provide you with an IP address for their DNS server. You must enter the DNS IP address if you set the
DNS of your PC to the LAN IP address of this router.
