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Chapter 4: Configuration
33
DHCP Server
You can disable or enable the DHCP (Dynamic Host Configuration Protocol) server or enable the router’s DHCP
relay functions. The DHCP protocol allows your router to dynamically assign IP addresses to PCs on your network if
they are configured to obtain IP addresses automatically.
To disable the router’s DHCP Server, check Disabled and click Next, then click Apply. When the DHCP Server is
disabled you will need to manually assign a fixed IP address to each PCs on your network, and set the default
gateway for each PCs to the IP address of the router (by default this is 10.0.0.2).
To configure the router’s DHCP Server, check DHCP Server and click Next. You can then configure parameters of
the DHCP Server including the IP pool (starting IP address and ending IP address to be allocated to PCs on your
network), lease time for each assigned IP address (the period of time the IP address assigned will be valid), DNS IP
address and the gateway IP address. These details are sent to the DHCP client (i.e. your PC) when it requests an IP
address from the DHCP server. Click Apply to enable this function. If you check “Use Router as a DNS Server”,
the ADSL Router will perform the domain name lookup, find the IP address from the outside network automatically
and forward it back to the requesting PC in the LAN (your Local Area Network).
If you check DHCP Relay Agent and click Next, then you will have to enter the IP address of the DHCP server
which will assign an IP address back to the DHCP client in the LAN. Use this function only if advised to do so by
your network administrator or ISP.
Click Apply to enable this function.