Cisco(config)#ip dhcp pool pool1
Cisco(dhcp-config)#network 192.168.1.0 255.255.255.0
Cisco(dhcp-config)#default-router 192.168.1.254
Cisco(dhcp-config)#dns-server 114.114.114.144 8.8.8.8
Cisco(dhcp-config)#exit
Cisco(config)#ip dhcp excluded-address 192.168.1.254
Cisco(config-if)#ip helper-address 192.168.2.1 //在中继设备上配置DHCP服务器地址
Cisco#show ip dhcp binding //显示dhcp地址下发绑定情况
Cisco#show ip dhcp pool
Cisco#debug ip dhcp server events