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静态路由的设置及相关命令  

2008-08-04 01:26:21|  分类: 网络天下 |  标签: |举报 |字号 订阅

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节主要是通过静态路由设置的实验帮助读者深入地体会路由的概念,并切实掌握静态路由的设置、查看路由表、设置无类路由等常用的命令。

  1.实验目的

  通过本实验,读者可以掌握以下技能:

  设置静态路由

  设置启用路由器的路由功能

  查看路由表

  ping和trace命令的使用

  2.设备需求

  3台Cisco路由器,其中1台具有2个以太网接口,其余2台至少具有1个以太网接口;

  2台Hub,4条双绞线 (也可以用2条交叉网线直接把3台路由器连接起来)

  1台终端服务器,如cisco 2509路由器,及用于反向Telnet的相应线缆;

  1台带有超级终端程序的PC机,以及Console电缆及转接器。

  3.拓扑结构及配置说明

  本实验的拓扑结构如图4-2所示。

  

  3台路由器分别命名为R1、R2和R3,所使用的接口和相应的IP地址分配如图4.2中的标注。图中的"/24"表示子网掩码为24位,即255.255.255.0。

  实验中,应使用静态路由的设置。实现R2到R3在IP层的连通性,即要求从R2可以ping通R3,反之亦然。

  4.实验配置及监测结果

  首先,根据拓扑结构图的要求,正确配置各路由器的以太网接口。

  接下来的实验记录是从接口的配置工作完成之后开始的,具体内容见配置清单4-1。

  配置清单4-1配置和监测静态路由

  第1段:测试基本的连通性

  Term_Server#1

  [Resuming connection I to R1 ...]

  R1#ping 10.1.1.2

  Type escape sequence to abort.

  Sending 5, 100-byte ICMP Echos to 10.1.1.2, timeout is 2 seconds:

  !!!!!

  Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/4 ms

  Ripping 172.16.1.3

  Type escape sequence to abort.

  Sending 5, 100-byte ICMP Echos to 172.16.1.3, timeout is 2 seconds:

  .!!!!

  Success rate is 80 percent (4/5), round-trip min/avg/max = 4/4/4 ms

  R1#

  (键入ctrl+shift+6,x,切换回终端服务器)

  Term_Server#2

  [Resuming connection 2 to R2 ... ]

  R2#ping 172.16.1.1

  Type escape sequence to abort.

  Sending 5, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:

  .....

  R2#sh ip route

  Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP

  D - EIGRP, EX - EIGRP external, 0 - 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

  第2段:加入静态路由并测试连通性

  R2#conft

  Enter configuration commands, one per line. End with CNTL/Z,

  R2(config)#ip route 172.16.1.0 255.255.255.0 10.1.1.1

  R2(config)#end

  R2#sh ip route

  Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP

  D - EIGRP, EX - EIGRP external, 0 - 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, 1 subnets

  S

  172.16.1.0[1/0]via 10.1.0.1

  10.0.0.0/24 is subnetted,1subnets

  C 10.1.1.0 is directly connected, EthernetO

  R2#ping 172.16.1.1

  Type escape sequence to abort.

  Sending 5, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:

  HW

  R2#ping 172.16.1.3

  Type escape sequence to abort.

  Sending 5, 100-byte ICMP Echos 10172.16.1.3, timeout is 2 seconds:

  .....

  success rate is 0 percent(0/5)

  R2#

  (键入ctrl+shift+6,x,切换回终端服务器)

  Term_Server#3

  [Resuming connection 3 to R3 ... ]

  R3#conft

  Enter configuration commands, one per line. End with CNTL/Z.

  R3(config)#ip route 10.1.1.0 255.255.255.0 172.16.1.1

  R3(config)#^Z

  R3#ping 10.1.1.2

  Type escape sequence to abort.

  Sending 5, 100-byte ICMP Echos to 10.1.1.2, timeout is 2 seconds:

  !!!!!

  Success rate is 100 percent (5/5), round-trip min/avg/max = 4/5/8 ms

  R3#

  R3#sh ip route

  Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP

  D - EIGRP, EX - EIGRP externa1, 0 -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, LI - 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, 1 subnets

  C

  172.16.1.0 is directly connected, EthernetO

  10.0.0.0/24 is subnetted, 1 subnets

  S

  10.1.1.0[1/0]via 172.16.1.1

  .

  R3#

  Term_Server#1

  [Resuming connection I to R1 ... ]

  R1#sh ip route

  Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP

  D - EIGRP, EX - EIGRP external, 0 - 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, LI - 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,1 subnets

  C

  172.16.1.0 is directly connected Ethernet0

  10.0.0.0/24 is subnetted,1 subnets

  C

  10.1.1.0 is directly connected Ethernet0

  R1#

  (键入ctrl+shift+6, x切换回终端服务器)

  Term_Server#2

  [Resuming connection 2 to R2 ... ]

  R2#sh ip route

  Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP

  D - EIGRP, EX - EIGRP external, 0 - 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, LI - 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

  S

  172.16.0.0/24 is subnetted, 1 subnets

  10.0.0.0/24 is subnetted, 1 subnets

  C

  10.1.1.0 is directly connected, Ethernet0

  R2#

  (键入ctrl+shift+6, x切换回终端服器)

  第3段:使用trace命令

  Term_Server#3

  [Resuming connection 3 to R3 ... ]

  R3#trace 10.1.1.2

  Type escape sequence to abort.

  Tracing the route to 10.1.1.2

  1 172.16.1.14msec 4 msec 4 msec

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