实验 11 广播网络 OSPF 配置
一．实验目的：
掌握广播网络 OSPF 的配置方法。
二．实验要点：
配置广播网络上的 OSPF，对运行中的 OSPF 进行诊断。
三．实验设备：
路由器 Cisco 2611 三台，带有网卡的工作站 PC 两台，控制台电缆一条，交叉双绞线若干。
四、实验环境
注意：路由器Router4中要断电加以太网接口的模块，才能进行整个实验。
五. 实验步骤
1．按 如图所示 连接各路由器。
2．按 如图所示 配置各路由器的各 IP 地址等参数。
3．配置路由器 RouterA 、RouterB 和 RouterC 上的 OSPF 协议（假设三个路由器都处于区域 0，
除了各路由器的 loopback0 接口所在网络外，其他网络均要求可路由）。
4．测试各网络之间的连通性。
5．练习 OSPF 的各种诊断命令对 OSPF 的运行进行诊断，观察诊断输出。
实验中的配置
Router7上面的配置
Router>enable
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#interface FastEthernet0/0
Router(config-if)#ip address 192.168.2.201 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to upRouter8上面的配置
Router>enable
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#interface FastEthernet0/0
Router(config-if)#ip address 192.168.3.201 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to upRouter4上面的配置
Router>enable
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#interface FastEthernet0/0
Router(config-if)#ip address 192.168.1.200 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
Router(config-if)#exit
Router(config)#interface FastEthernet0/1
Router(config-if)#ip address 192.168.2.200 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#
%LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up
Router(config-if)#exit
Router(config)#interface FastEthernet1/0
Router(config-if)#ip address 192.168.3.200 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#
%LINK-5-CHANGED: Interface FastEthernet1/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/0, changed state to up
Router(config-if)#
Router(config-if)#end
Router#
%SYS-5-CONFIG_I: Configured from console by console
Router#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#router ospf 1
Router(config-router)#net 192.168.1.0 0.0.0.255 area 0
Router(config-router)#net 192.168.2.0 0.0.0.255 area 0
Router(config-router)#net 192.168.3.0 0.0.0.255 area 0
00:06:09: %OSPF-5-ADJCHG: Process 1, Nbr 192.168.1.201 on FastEthernet0/0 from LOADING to FULL, Loading Done
Router(config-router)#exitRouter6上面的配置
Router>enable
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#interface FastEthernet0/0
Router(config-if)#ip address 192.168.1.201 255.255.255.0
Router(config-if)#no shutdown
Router(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
Router(config-if)#end
Router#
%SYS-5-CONFIG_I: Configured from console by console
//当没有在Route4上配置OSPF时：
Router#ping 192.168.1.200
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.200, timeout is 2 seconds:
.!!!!
Success rate is 80 percent (4/5), round-trip min/avg/max = 0/0/0 ms
Router#ping 192.168.2.200
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.2.200, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Router#ping 192.168.3.200
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.3.200, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
//当在Route4上配置了OSPF后有：
Router#ping 192.168.2.200
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.2.200, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/1 ms
Router#ping 192.168.3.200
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.3.200, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/1 ms后续的可以在每个路由器上面添加主机，然后再进行相应的配置，也可以模拟更加复杂的实验环境。