Configure Cisco Router as DHCP server

this artiecle describes the steps necessary to configure a cisco IOS router to take on the task as the DHCP server on a particular subnet.


 * 1) Enter configure terminal config t


 * 1) Then type Service DHCP this should take you to a configure Dhcp prompt


 * 1) Enter the range of ip address you want the router to hand out. Ip dhcp pool 10.0.0.0 /24


 * 1) Enter the network or interface that the router is serving as DHCP server Network 10.0.0.0 /24


 * 1) Configure the default router/gateway default router 10.0.0.254


 * 1) Configure the Dns server(s) for your networkdns-server  10.0.0.100 10.0.0.101


 * 1) Then type exit exit

This is the minimalamount of options you need to configure to make DHCP work on your cisco router.

you may also have to configure the excluded address on your network so that clients don't have conflicts with default gateway or infrastructure equipment. to do this enter the following command ip dhcp excluded-address 10.0.0.100 10.0.0.125


 * to exclude a single address enter: ip dhcp excluded-address 10.0.0.254