Draytek Vigor2920 Series User Manual page 134

Item
DNS Server IP Address
After finishing all the settings here, please click OK to save the configuration.
Vigor2920 Series User's Guide
Description
Enable Relay Agent –Specify which subnet that DHCP server
is located the relay agent should redirect the DHCP request to.
Start IP Address - Enter a value of the IP address pool for the
DHCP server to start with when issuing IP addresses. If the 1st
IP address of your router is 192.168.1.1, the starting IP address
must be 192.168.1.2 or greater, but smaller than 192.168.1.254.
IP Pool Counts - Enter the maximum number of PCs that you
want the DHCP server to assign IP addresses to. The default is
50 and the maximum is 253.
Gateway IP Address - Enter a value of the gateway IP address
for this subnet. The value is usually as same as the 1st IP
address of the router, which means the router is the default
gateway.
DNS stands for Domain Name System. Every Internet host
must have a unique IP address, also they may have a
human-friendly, easy to remember name such as
www.yahoo.com. The DNS server converts the user-friendly
name into its equivalent IP address.
Primary IP Address - You can specify the primary DNS
server IP address here. The Router will assign the specified
DNS server IP instead of the ISP offered DNS server IP to
LAN DHCP clients.
Secondary IP Address - You can specify the secondary DNS
server IP address here. Router will assign the specified DNS
server IP instead of the ISP offered DNS server IP to LAN
DHCP clients.
The default DNS Server IP address can be found via Online
Status:
If both DNS Primary IP and Secondary IP Address fields
are left empty, the router will assign the DNS server IP
obtained from ISP (which can be found in Online Status
page) to LAN DHCP clients.
If you want to use the router as a DNS proxy server, you have
to input router's LAN IP into the Primary or Secondary DNS
server IP fields manually.
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