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6.6 DNS Configuration
The
DNS Configuration
page allows users to set the configuration of DNS
proxy. Our firmware supports the DNS proxy function. For the DHCP requests
from local PCs, the DHCP server will set the LAN port IP as the default DNS
server. Thus, all DNS query messages will come into LAN port first. The DNS
proxy on the ADSL modem recorded the available DNS servers, and forward
DNS query messages to one of DNS server.
Before the DNS proxy mode is enabled, please go to the
Miscellaneous
Configuration
page to enable the DNS proxy. Otherwise, the DNS Proxy
selection will not be valid.
There are four DNS proxy modes available:
Disable DNS
Proxy
The LAN port does not process the DNS query message.
For the DHCP requests from local PCs, the DHCP server
will set the user-configured preferred DNS server or
alternate DNS server whichever is available as the DNS
server. Then all DNS query messages will be directly sent
to the DNS servers.
Use Auto
Discovered DNS
Servers Only
The DNS proxy will store the DNS server IP addresses
obtained from DHCP client or PPP into the table. And all
DNS query message will be sent to one of the
dynamically obtained DNS servers.
Use Auto
Configured DNS
Servers Only
The DNS proxy will use the user-configured preferred
DNS server and alternate DNS server. And all DNS query
message will be sent to one of DNS servers.
Auto Dis
User Configured
The DNS proxy’s table contains all the IP addresses of
dynamically obtained and user configured DNS servers.
