拓扑图:

要实现全网互通
配置文件:
R1:
#
 sysname r1
#
interface GigabitEthernet0/0/0
 ip address 10.1.0.1 255.255.0.0 
#
interface LoopBack0
 ip address 1.1.1.1 255.255.255.255 
#
ospf 1 router-id 1.1.1.1 
 area 0.0.0.3 
  network 1.1.1.1 0.0.0.0 
  network 10.1.0.0 0.0.255.255 
 
R2:
#
 sysname r2
#
interface GigabitEthernet0/0/0
 ip address 10.1.0.2 255.255.0.0 
#
interface GigabitEthernet0/0/1
 ip address 10.0.0.2 255.255.0.0 
#
interface LoopBack0
 ip address 2.2.2.2 255.255.255.255 
#
ospf 1 router-id 2.2.2.2 
 area 0.0.0.1 
  network 10.0.0.0 0.0.255.255 
  vlink-peer 3.3.3.3
 area 0.0.0.3 
  network 2.2.2.2 0.0.0.0 
  network 10.1.0.0 0.0.255.255 
 
R3:
#
 sysname r3
#
interface GigabitEthernet0/0/0
 ip address 10.0.0.3 255.255.0.0 
#
interface GigabitEthernet0/0/1
 ip address 10.56.0.3 255.255.0.0 
#
interface LoopBack0
 ip address 3.3.3.3 255.255.255.255 
#
interface LoopBack1
 ip address 100.100.100.100 255.255.255.255 
ospf 1 router-id 3.3.3.3 
 area 0.0.0.0 
  network 10.56.0.0 0.0.255.255 
 area 0.0.0.1 
  network 3.3.3.3 0.0.0.0 
  network 10.0.0.0 0.0.255.255 
  network 100.100.100.100 0.0.0.0 
  vlink-peer 2.2.2.2
 
R4:
#
 sysname r4
#
interface GigabitEthernet0/0/0
 ip address 10.56.0.4 255.255.0.0 
#
interface GigabitEthernet0/0/1
 ip address 10.2.0.4 255.255.0.0 
#
interface LoopBack0
 ip address 4.4.4.4 255.255.255.255 
#
ospf 1 router-id 4.4.4.4 
 area 0.0.0.0 
  network 4.4.4.4 0.0.0.0 
  network 10.56.0.0 0.0.255.255 
 area 0.0.0.2 
  network 10.2.0.0 0.0.255.255 
 
R5:
#
 sysname r5
#
interface GigabitEthernet0/0/0
 ip address 10.2.0.5 255.255.0.0 
#
interface GigabitEthernet0/0/1
 ip address 172.16.24.5 255.255.255.0 
#
ospf 1 router-id 5.5.5.5 
 import-route rip 1 cost 100
 area 0.0.0.2 
  network 5.5.5.5 0.0.0.0 
  network 10.2.0.0 0.0.255.255 
#
rip 1
 undo summary
 default-route originate
 version 2
 network 5.0.0.0
 network 172.16.0.0
 import-route ospf 1 cost 0
 
R6:
#
 sysname r6
#
interface GigabitEthernet0/0/0
 ip address 172.16.24.6 255.255.255.0 
interface LoopBack0
 ip address 6.6.6.6 255.255.255.255 
#
ospf 1 router-id 6.6.6.6 
 import-route rip 1 cost 100
#
rip 1
 undo summary
 version 2
 network 6.0.0.0
 network 172.16.0.0
 import-route ospf 1 cost 0
 
注意:在R2和R3之间做虚链路,在R5和R6之间做重分发
每个路由器可以学习到的IP地址如下:

我们把area3做成完全末梢区域,配置文件如下:
R1:
[r1]ospf 1 
[r1-ospf-1]area 3
[r1-ospf-1-area-0.0.0.3]stub 
R2:
[r2]ospf 1  
[r2-ospf-1]area 3   
[r2-ospf-1-area-0.0.0.3]stub no-summary 
R1的路由表变成如下图所示:

把area 2 做成完全次末节,配置文件如下:
R4:
[r4]ospf 1
[r4-ospf-1]area 2
[r4-ospf-1-area-0.0.0.2]nssa no-summary 
R5:
[r5]ospf 1
[r5-ospf-1]area 2
[r5-ospf-1-area-0.0.0.2]nssa 
在R5上查看路由表,变成如下图所示:

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爱站程序员基地


