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Parameter
Speed
Connectivity check
Operation
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
Figure 2.9
Description
The send/upstream and receive/downstream speed of the WAN line the
WAN port is connected to.
You can key in an IP. The router will ping that IP to verify if the WAN
line can access the Internet. You also can select "Ping Default Gateway",
and the router will check if the WAN line is ok by ping the default
gateway of the WAN port.
If you select "Enable", the WAN port will be activated when the system
boot up. If you select "Backup", the WAN port is disabled on start up.
But when other enabled WAN ports fail, the backup WAN port will be
activated and take over all the traffic.
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