D-Link DSL-2740B User Manual page 48

Section 3 - Configuration
DHCP SERVER SETTINGS (OPTIONAL)
The Enable DHCP Server is selected by default for the Router's Ethernet
LAN interface. DHCP service will supply IP settings to workstations
configured to automatically obtain IP settings that are connected to the
Router though the Ethernet port. When the Router is used for DHCP it
becomes the default gateway for DHCP client connected to it. Keep in
mind that if you change the IP address of the Router the range of IP
addresses in the pool used for DHCP on the LAN will also be changed.
The IP address pool can be up to 253 IP addresses.
ADD DHCP RESERVATION (OPTIONAL)
Select the Enable can let you reserve the IP Address for the designate
PC with the configured MAC Address.
The Computer Name can help you recognize the PC with the MAC
Address, such as "Father's Laptop".
Clicking on the Copy Your PC's MAC Address button will help you get
the Mac address from the PC you are using now browsing this web page.
Click on the Save button to save the settings
D-Link DSL-2740B User Manual 48