PC的IP地址和路由器的IP地址以及靜態路由已經配置完畢。
PC4能夠ping通PC5
PC4能夠ping通PC1
PC4 pingPC0 請求超時
PC4 pingPC2 請求超時
PC2ping PC4 結果如下
PC0ping PC4 結果如下
PC>ping 192.168.0.2
Pinging 192.168.0.2 with 32 bytes of data:
Reply from 172.16.5.1: Destination host unreachable.
Reply from 172.16.5.1: Destination host unreachable.
Reply from 172.16.5.1: Destination host unreachable.
Reply from 172.16.5.1: Destination host unreachable.
試驗要求快速定位出問題的路由器。
基本配置步驟針對以上現象，問題很可能出在Router0上
查看路由表
Router#show ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route
Gateway of last resort is not set
172.16.0.0/24 is subnetted, 7 subnets
S 172.16.0.0 [1/0] via 172.16.3.1
S 172.16.1.0 [1/0] via 172.16.4.1
S 172.16.2.0 [1/0] via 172.16.5.2
C 172.16.3.0 is directly connected, Serial2/0
C 172.16.4.0 is directly connected, Serial3/0
C 172.16.5.0 is directly connected, Serial6/0
S 172.16.6.0 [1/0] via 172.16.3.1
S 192.168.1.0/24 [1/0] via 172.16.3.1
來這個路由器沒有到192.168.0.0 255.255.255.0的路由項