三臺(tái)路由器,問(wèn):在路由器B(即中間的那臺(tái)路由器)上的E0/1的IN方向做一個(gè)ACL,要求路由器A可以TELNET路由器C,但是路由器C不可以TELNET路由器A。要求寫(xiě)出ACL命令行。
A.ping 192.168.1.255 B.ping with sweep option C.ping 192.168.1.127 D.ping 192.168.1.64 E.ping with broadcast option
A.OSPF standard hellos B.Cisco Discovery Protocol link detection C.Bidirectional Forwarding Detection D.Fast Link Pulse E.autonegotiation