顯示路由資訊(以數字表示)
route -n
顯示路由詳盡資訊
route -ee
路由增加及刪除
route add  [-net|-host] [網域或主機] netmask [mask] [gw|dev]
      del  [-net|-host] [網域或主機] netmask [mask] [gw|dev]