华为多路由器OSPF动态路由配置
1、①、PC1设置静态IP地址192.168.10.100；PC4配置静态IP地址192.168.20.200。
②、Switch1和Switch2作为接入交换机。不需要进行配置。
③、路由器Router1、Router2、Router3和Router4组成一个环形路由阵列。用来测试当OSPF动态路由配置完成以后，数据路由的选择情况。
2、实验平台搭建：
①、按照拓扑结构图所示，摆放好设备，并使用直连线连接好各个设备。
②、设置好PC1、PC2的IP地址，网关分别指向Router1、Router2的GigabitEthernet0/0/0的端口地址。
③、路由器Router1、Router2、Router3和Router4每台路由器均插入2块1端口-GE COMBO WAN 接口卡。用于路由器之间的对连。
1、Router1的配置清单：
<Huawei> system-view
[Huawei]sysname Router1
[Router1]interface GigabitEthernet0/0/0
[Router1-GigabitEthernet0/0/0]description To_Switch1
[Router1-GigabitEthernet0/0/0]ip address 192.168.10.11 255.255.255.0
[Router1-GigabitEthernet0/0/0]quit
[Router1]interface GigabitEthernet1/0/0
[Router1-GigabitEthernet1/0/0]description To_Router3
[Router1-GigabitEthernet1/0/0]ip address 192.168.11.13 255.255.255.0
[Router1-GigabitEthernet1/0/0]quit
[Router1]interface GigabitEthernet2/0/0
[Router1-GigabitEthernet2/0/0]description To_Router4
[Router1-GigabitEthernet2/0/0]ip address 192.168.14.14 255.255.255.0
[Router1-GigabitEthernet2/0/0]quit
[Router1]ospf
[Router1-ospf-1]area 0
[Router1-ospf-1-area-0.0.0.0]network 192.168.10.0 0.0.0.255
[Router1-ospf-1-area-0.0.0.0]network 192.168.11.0 0.0.0.255
[Router1-ospf-1-area-0.0.0.0]network 192.168.14.0 0.0.0.255
2、Router2的配置清单：
<Huawei> system-view
[Huawei]sysname Router2
[Router2]interface GigabitEthernet0/0/0
[Router2-GigabitEthernet0/0/0]description To_Switch2
[Router2-GigabitEthernet0/0/0]ip address 192.168.20.12 255.255.255.0
[Router2-GigabitEthernet0/0/0]quit
[Router2] interface GigabitEthernet1/0/0
[Router2-GigabitEthernet1/0/0]description To_Router3
[Router2-GigabitEthernet1/0/0]ip address 192.168.12.23 255.255.255.0
[Router2-GigabitEthernet1/0/0]quit
[Router2] interface GigabitEthernet2/0/0
[Router2-GigabitEthernet2/0/0]description To_Router4
[Router2-GigabitEthernet2/0/0]ip address 192.168.13.24 255.255.255.0
[Router2-GigabitEthernet2/0/0]quit
[Router2]ospf
[Router2-ospf-1]area 0
[Router2-ospf-1-area-0.0.0.0]network 192.168.12.0 0.0.0.255
[Router2-ospf-1-area-0.0.0.0]network 192.168.13.0 0.0.0.255
[Router2-ospf-1-area-0.0.0.0]network 192.168.20.0 0.0.0.255
3、Router3的配置清单：
<Huawei> system-view
[Huawei]sysname Router3
[Router3] interface GigabitEthernet0/0/0
[Router3-GigabitEthernet0/0/0]description To_Router1
[Router3-GigabitEthernet0/0/0]ip address 192.168.11.31 255.255.255.0
[Router3-GigabitEthernet0/0/0]quit
[Router3] interface GigabitEthernet0/0/1
[Router3-GigabitEthernet0/0/1]description To_Router2
[Router3-GigabitEthernet0/0/1]ip address 192.168.12.32 255.255.255.0
[Router3-GigabitEthernet0/0/1]quit
[Router3]ospf
[Router3-ospf-1]area 0
[Router3-ospf-1-area-0.0.0.0]network 192.168.11.0 0.0.0.255
[Router3-ospf-1-area-0.0.0.0]network 192.168.12.0 0.0.0.255
4、Router4的配置清单：
<Huawei> system-view
[Huawei]sysname Router4
[Router4] interface GigabitEthernet0/0/0
[Router4-GigabitEthernet0/0/0]description To_Router1
[Router4-GigabitEthernet0/0/0]ip address 192.168.14.41 255.255.255.0
[Router4-GigabitEthernet0/0/0]quit
[Router4]interface GigabitEthernet0/0/1
[Router4-GigabitEthernet0/0/1]description To_Router2
[Router4-GigabitEthernet0/0/1]ip address 192.168.13.42 255.255.255.0
[Router4-GigabitEthernet0/0/1]quit
[Router4]ospf
[Router4-ospf-1]area 0
[Router4-ospf-1-area-0.0.0.0]network 192.168.13.0 0.0.0.255
[Router4-ospf-1-area-0.0.0.0]network 192.168.14.0 0.0.0.255
5、配置完成以后，我们检查一下OSPF的路由表是否建立完成。
1、进行PC1到PC2的连通测试：PC1至PC2已经成功连通。
2、跟踪PC1到PC2的路由路径
PC1至PC2的路由路径是：PC1→Router1→Router3→Router2→PC2。
3、假定Router3和Router4之间，有一台路由器发生故障（如：Router3发生宕机、掉电等），进行PC1到PC2的连通测试
PC1至PC2仍然成功连通；但是PC1至PC2的路由路径发生了改变：PC1→Router1→Router4→Router2→PC2。
4、假定Router3在故障排除之后，重新开机上线，那么跟踪PC1至PC2路由路径。
PC1至PC2的路由路径没有发生改变：PC1→Router1→Router4→Router2→PC2；仍然是故障恢复前的路由路径。
5、假定当前路由路径为：PC1→Router1→Router3→Router2→PC2，当Router3与Router1之间的线路发生故障时，进行PC1到PC2的连通测试、并跟踪路由路径
此时，PC1至PC2是可以连通的。从跟踪路由路径的数据可以看出，当前路由路径为：PC1→Router1→Router4→Router2→PC2，数据在选择传输路径的时候，会自动放弃故障路由，而选择其他可达的路由路径。
