配置: 1、全局开启dhcp//DHCPenable 2、进入接口g0/0/0//intg0/0/0 添加IP:192.168.1.25424//包括网关、网段的信息 //ipadd192.168.1.25424 dhcpselectinterface//选择接口模式 DHCPserverdns-list4.4.4.4 dhcpserverleaseday0hour6 dhcpserverexclude-ip-address192.168.1.66192.168.1.253