Linuxで802.1qタグつきVLAN
http://d.hatena.ne.jp/inuz/20050721/p1
! interface FastEthernet0/1 switchport access vlan 3 ! interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport trunk allowed vlan 1-3,1002-1005 switchport mode trunk ! interface FastEthernet0/3 switchport access vlan 2 !