vlan — IP
Port (interface) - vlan (access)
Port (interface) - 單/多vlan (trunk) allowed (add | all | except)
Port (interface) - no switch port (set ip address)
ip routing 讓vlan互通
ACL 讓vlan互不通
http://blog.yam.com/gavint/article/31578943
http://www.hkitblog.com/?p=19103
