Pe interfata comuna a mai multor LAN-uri se vor configura subinterfete, cate 1 pt fiecare VLAN, pt a deservi ca si Gateway virtual pentru acel VLAN:

	R1:
	-> G0/0:
		=> G0/0.VID (G0/0.10):	192.168.0.254/24 (Encapsulare: dot1q 10)
		=> G0/0.VID (G0/0.20):	192.168.1.254/24 (Encapsulare: dot1q 20)

	Comenzile:

Router# conf t
Router(config)# int G0/0
Router(config-if)# no shutdown
Router(config-if)# int G0/0.10
Router(config-subif)# encapsulation dot1q 10
Router(config-subif)# ip address X.X.X.X Y.Y.Y.Y	(IP-ul de Gateway specific VLAN-ului corespunzator)
Router(config-subif)# exit
Router(config-if)# int G0/0.20
Router(config-subif)# encapsulation dot1q 20
Router(config-subif)# ip address X.X.X.X Y.Y.Y.Y	(IP-ul de Gateway specific VLAN-ului corespunzator)
Router(config-subif)# exit