D-Link DIR-605L User Manual page 33

Section 3 - Configuration
Enable DHCP
Check the box to enable the DHCP server on your router.
Server: Uncheck to disable this function.
DHCP IP Enter the starting and ending IP addresses for the DHCP
Address Range: server's IP assignment.
DHCP Lease The length of time for the IP address lease. Enter the Lease
Time: time in minutes.
DHCP Client List: Displays currently connected client details.
Avoid ARP Tick this to enable ARP spoofing prevention feature.
Attack:
DHCP Enter the MAC address of specific clients to reserve an IP
Reservation: address for each one.
D-Link DIR-605L User Manual 29