思科2811路由器配置---interface FastEthernet0/1 ip dhcp relay information trusted no ip address duplex full speed 100!interface FastEthernet0/1.100 encapsulation dot1Q 100 ip dhcp relay information trusted ip address 192.168.100.1 255.255.255.0!H3C S3500 交换机配置---vlan 1#vlan 100#dhcp server ...