一、实验目的
通过本实验,可以掌握以下技能:
- 配置接口IP地址
- 配置OSPF协议
- 验证OSPF协议配置
二、设备需求
- Cisco路由器3台,分别命名为twins、sa和gill。其中twins具有2个串行接口;sa具有1个以太网接口和一个串行接口;gill具有1个以太网接口和一个串行接口
- 1条交叉线序双绞线
- 2条串行接口线
- 1台access server,及用于反向Telnet的相应电缆
- 1台带有超级终端程序的PC机,以及Console电缆及转接器。
三、拓扑结构及接口IP配置
实验的拓扑结构如图10-6所示。通过2对交叉线序双绞线分别把twins和sa连接起来,twins和gill连接起来。
各路由器使用的接口及其编号见图10-6所示的标注,各接口IP地址分配如下:
- twins:S2/0: 172.16.10.5 S3/0: 172.16.20.5
- sa:S2/0: 172.16.10.6 F0/0: 10.0.10.1
- gill:S3/0: 172.16.20.6 F0/0: 10.0.10.2
四、实验配置文档
1.基本网络配置
twins:
Router>ena
Router>enable
Router#con
Router#conf
Router#configure ter
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#host
Router(config)#hostname sjt-twins
sjt-twins(config)#int
sjt-twins(config)#interface s
sjt-twins(config)#interface serial 2/0
sjt-twins(config-if)#ip address 172.16.10.5 255.255.255.252
sjt-twins(config-if)#clo
sjt-twins(config-if)#clock rate 56000
sjt-twins(config-if)#no shu
sjt-twins(config-if)#no shutdown
%LINK-5-CHANGED: Interface Serial2/0, changed state to down
sjt-twins(config-if)#exit
sjt-twins(config)#inte
sjt-twins(config)#interface s
sjt-twins(config)#interface serial 3/0
sjt-twins(config-if)#ip address 172.16.20.5 255.255.255.252
sjt-twins(config-if)#clo
sjt-twins(config-if)#clock rate 56000
sjt-twins(config-if)#no shut
sjt-twins(config-if)#no shutdown
%LINK-5-CHANGED: Interface Serial3/0, changed state to down
sjt-twins(config-if)#
sa:
Router>ena
Router>enable
Router#conf
Router#configure ter
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#ho
Router(config)#hostname sjt-sa
sjt-sa(config)#int
sjt-sa(config)#interface s
sjt-sa(config)#interface serial 2/0
sjt-sa(config-if)#ip address 172.16.10.6 255.255.255.252
sjt-sa(config-if)#no shut
sjt-sa(config-if)#no shutdown
sjt-sa(config-if)#
%LINK-5-CHANGED: Interface Serial2/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0, changed state to up
sjt-sa(config-if)#exit
sjt-sa(config)#int
sjt-sa(config)#interface F
sjt-sa(config)#interface FastEthernet 0/0
sjt-sa(config-if)#ip address 10.0.10.1 255.255.255.0
sjt-sa(config-if)#no shut
sjt-sa(config-if)#no shutdown
sjt-sa(config-if)#
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
sjt-sa(config-if)#
gill:
Router>en
Router>enable
Router#conf
Router#configure ter
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#hos
Router(config)#hostname sjt-gill
sjt-gill(config)#int
sjt-gill(config)#interface s
sjt-gill(config)#interface serial 3/0
sjt-gill(config-if)#ip address 172.16.20.6 255.255.255.252
sjt-gill(config-if)#no shut
sjt-gill(config-if)#no shutdown
sjt-gill(config-if)#
%LINK-5-CHANGED: Interface Serial3/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/0, changed state to up
sjt-gill(config-if)#exit
sjt-gill(config)#int
sjt-gill(config)#interface F
sjt-gill(config)#interface FastEthernet 0/0
sjt-gill(config-if)#ip address 10.0.10.2 255.255.255.0
sjt-gill(config-if)#no shut
sjt-gill(config-if)#no shutdown
sjt-gill(config-if)#
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
sjt-gill(config-if)#
2.配置OSPF协议
twins:
sjt-twins(config)#rou
sjt-twins(config)#router os
sjt-twins(config)#router ospf 75
sjt-twins(config-router)#netw
sjt-twins(config-router)#network 172.16.10.0 0.0.0.3 area 0
sjt-twins(config-router)#network 172.16.20.0 0.0.0.3 area 0
sjt-twins(config-router)#
sa:
sjt-sa(config)#rou
sjt-sa(config)#router os
sjt-sa(config)#router ospf 75
sjt-sa(config-router)#net
sjt-sa(config-router)#network 172.16.10.0 0.0.0.3 area 0
sjt-sa(config-router)#network 10.0.10.0 0.0.0.255 area 0
sjt-sa(config-router)#
gill:
sjt-gill(config)#rou
sjt-gill(config)#router os
sjt-gill(config)#router ospf 75
sjt-gill(config-router)#net
sjt-gill(config-router)#network 172.16.20.0 0.0.0.3 area 0
sjt-gill(config-router)#network 10.0.10.0 0.0.0.255 area 0
sjt-gill(config-router)#
五、验证实验结果
1. 命令 show ip ospf
该命令指出了路由选择协议OSPF在路由器上的运行情况,其输出中包括路由选择算法SPF运行了多少次,这是网络稳定性的风向标.该命令如下:
Router# show ip ospf process-id
下列是该命令的输出:
twins:
sa:
gill:
2. 命令 show ip ospf database
该命令显示路由器拓扑数据库的内容以及被加入到该数据库中的LSA.该命令如下:
Router# show ip ospf database
下列是该命令的输出:
twins:
sa:
gill:
3. 命令 show ip ospf interface
twins:
sa:
gill:
4. 命令 show ip ospf neighbor
该命令显示OSPF邻居。该命令可用于显示路由器知道的所有邻居,某个接口相连的邻居或特定的邻居,这种细节对诊断配置错误很有帮助,该命令如下:
Router# show ip ospf neighbor [ type-number ] [ neighbor-id ] [ detail ]
下列是该命令的输出:
twins:
sa:
gill:
5. 命令 show ip protocols
该命令显示路由器的IP路由选择协议配置,详细说明了协议的配置情况以及协议之间的交互情况,还指出了下一次更新在何时进行,这种细节对诊断配置错误很有帮助,该命令如下:
Router# show ip protocols
下列是该命令的输出:
twins:
sa:
gill:
6. 命令 show ip route
该命令显示路由器的IP路由选择表,详细指出了路由器是如何获悉网络和发现路由的, 该命令如下:
Router# show ip route
下列是该命令的输出:
twins:
sa:
gill:
六、实验总结
1.学习了ospf协议,了解了该协议的特点
2.学会了配置ospf协议,以及ospf协议的各种验证
3.配置ospf协议时需要注意process-number是路由器本地的进程号,用命令network时要注意area用于指定接口所属的区域
七、附件
下面是该实验的文件
链接:https://pan.baidu.com/s/118XrR0oYVlK86kTBtswo6A 密码:poj1