接口模式:dhcp enable
inter g0/0/0
dhcp select interface
dhcp server dns-list 8.8.8.8
dhcp server excluded-ip-address 10.1.1.2
dhcp server lease day 3
display dhcp server
dispay ip pool
dhcp enable
ip pool pool2
network 1.1.1.0 mask 24
gateway-list 1.1.1.1
int g0/0/0
dhcp select global