本文内容兜兜做成了中英文对照.各位圈子里的朋友们,在我们的cisco自学路上,请重视英语.cisco专业英语其实不难.如果心里没有梦想,这个障碍,我们永远也无法克服.逼迫自己看英文的文档吧.
本次实验拓扑如下,点击可在新窗口中看大图.Lab topology:
实验要求(Lab requirements)
1、配置好实验拓扑图中每个路由器的接口IP地址,使用ping命令测试相邻路由器的连通性!!同时思考还有其他方法可以用来说明2台相邻设备已经是连通的吗?
Configure interface IP addresses of each router in the topology, and use command ping to test the connectivity of adjacent routers! Have a think about whether there are other ways that can be used to test the connectivity of two neighbor advices?
2、 通过第一步配置后,在每台路由器上配置 RIPv1协议,使全网互通!!用什么命令可以查看路由器是否学习到所有网络的路由?
Set RIPv1 protocol on each router after the first step configuration to enable the connectivity of the entire network! Then what commands should be used to check whether the router has learnt all the network routing?
3、 在R5上的特权模式下(#模式)使用debug ip rip命令,查看路由器R5上接收和发送的RIP更新,并可以观察到网络路由的汇总和水平分割的效果,请将debug的输出截图下来。
Use command debug ip rip in the privilege mode (# mode) on R5 to view the RIP updates received and sent on router R5. And network routing summary and split-horizon effects can also be observed. Please screen shot debug output.
4、 在R1上使用show ip route命令查看路由表,查看RIP协议的汇总特性,并将R1的路由表截图!
Use command show ip route on R1 to check routing table, read RIP protocol summary, and screen shot routing table R1.
5、 在R1上使用ping 10.10.5.1, 是否能ping通?为什么?有什么办法解决?
Use ping 10.10.5.1 on R1 to check whether it can ping successfully. Why? How to solve the problem?
6、 在R5上使用show ip route查看路由表,可以看到一条如下路由条目:
Use show ip route on R5 to check routing table, and we’ll see a routing entries as follows:
R 172.16.0.0/16 [120/1] via 172.168.2.2, 00:00:10, Serial1/1
[120/1] via 172.17.1.2, 00:00:26, Serial1/2
为什么有2个到达172.16.0.0/16的下一跳地址? [120/1]代表什么意思?能不能通过修改R5上的S1/1接口的带宽来修改这条路由的metric值?为什么?
Why are there two next hop addresses reaching 172.16.0.0/16? What is [120 / 1]? can we change the routing metric value by changing the bandwidth of S1/1 interface on R5? Why?
7、 在所有路由器上启用RIPv2路由协议并在所有路由器上禁用自动汇总后,在R1上再次ping 10.10.5.1 测试是否能ping通?为什么?
Enable RIPv2 routing protocol on all routers and disable auto summary on all routers, and then ping 10.10.5.1 on R1 again to check the result. Why?
此仅为练习题,提供给CCNA考生练习之用.兜兜在这里就不卖弄啥了.各位请自行独立思考.
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