Configuration commands:
ap> enable
ap#configure terminal
ap(config)#ip dhcp excluded-address 172.29.1.10 – 172.29.1.20
ap(config)#ip dhcp pool ap
ap(dhcp-config)# network 172.29.1.0 255.255.255.0
ap(dhcp-config)#lease 20
ap(dhcp-config)#default-router 172.29.1.1
ap(dhcp-config)#dns-server 192.168.102.1
ap(dhcp-config)#end
Done.