1.Ping不到不一定訪問不到
2.Cosco-4506不知是否少了設靜態路由?
ip route 10.x.y.0 255.255.255.0 "Cisco-4500(A)的 Lan IP"
3.請參考:https://blog.xuite.net/tolarku/blog/37809537-%5BCCNA%5D+Cisco+Router+%E7%9A%84+OSPF+%E8%B7%AF%E5%BE%91%E8%A8%AD%E5%AE%9A+%28Open+Shortest+Path+First%29