Draytek Vigor2920n User Manual page 140

DNS Server
Configuration
Vigor2920 Series User's Guide
If you want to use another DHCP server in the network other than
the Vigor Router's, you can let Relay Agent help you to redirect the
DHCP request to the specified location.
Enable Server - Let the router assign IP address to every host in the
LAN.
Disable Server – Let you manually assign IP address to every host
in the LAN.
st
Relay Agent – (1 subnet/2
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
the DHCP server. The value is usually as same as the 1st IP address
of the router, which means the router is the default gateway.
DHCP Server IP Address for Relay Agent - Set the IP address of
the DHCP server you are going to use so the Relay Agent can help to
forward the DHCP request to the DHCP server.
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.
Force DNS manual setting - Force Vigor router to use DNS servers
in this page instead of DNS servers given by the Internet Access
server (PPPoE, PPTP, L2TP or DHCP server).
Primary IP Address -You must specify a DNS server IP address
here because your ISP should provide you with usually more than
one DNS Server. If your ISP does not provide it, the router will
automatically apply default DNS Server IP address: 194.109.6.66 to
this field.
Secondary IP Address - You can specify secondary DNS server IP
address here because your ISP often provides you more than one
DNS Server. If your ISP does not provide it, the router will
automatically apply default secondary DNS Server IP address:
194.98.0.1 to this field.
The default DNS Server IP address can be found via Online Status:
If both the Primary IP and Secondary IP Address fields are left empty,
the router will assign its own IP address to local users as a DNS
proxy server and maintain a DNS cache.
If the IP address of a domain name is already in the DNS cache, the
router will resolve the domain name immediately. Otherwise, the
router forwards the DNS query packet to the external DNS server by
establishing a WAN (e.g. DSL/Cable) connection.
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nd
subnet) Specify which subnet that