PROLiNK Hurricane 9000 - Manual (Page 23)

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4.3.9 DNS Configuration
The DNS Configuration page allows users to set the configuration
of DNS proxy. It 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.
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 sever 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 messages will be sent to one of the dynamically
obtained DNS servers.
Use User 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. Enter the DNS IP
in the Preferred DNS Server and Alternate DNS Server fields.
Auto Discovery + User Configured: The DNS proxy’s table has all the
IP addresses of dynamically obtained and user configured DNS servers.
Section Four: Web-Based Management