OSPF实验

要求：

1.整个网络IP地址为192.168.1.0/24

2. area 0 区域手工设置R1为DR R2为BDR

3.R3---R5之间使用密文认证方式

4.R1.R2.R5上配置环回接口，但是R5环回接口不能宣告进ospf

5全网可达

配置：

AR1

[r1]interface g0/0/0
{r1-GigabitEthernet0/0/0]ip address 192.168.1.1 27
[r1]interface LoopBack 0
[r1-LoopBack0]ip address 192.168.1.161  32
[r1]ospf 1  router-id   1.1.1.1
[r1-ospf-1]area 0 
[r1-ospf-1-area-0.0.0.0]network  192.168.1.1 0.0.0.0
[r1]interface G0/0/0
[r1-GigabitEthernet0/0/0]ospf dr-priority 10

AR2

[R2]interface G0/0/0
[R2-GigabitEthernet0/0/0]IP address 192.168.1.33 27
[R2]interface LoopBack 0 
[R2-LoopBack0]ip address 192.168.1.193 32
[R2]ospf 1 router-id  2.2.2.2 
[R2-ospf-1]area 0
[R2-ospf-1-area-0.0.0.0]network 192.168.1.33 0.0.0.0
[R2]interface g0/00/0
[R2-GigabitEthernet0/0/0]ospf dr-priority  9

AR3

[r3]interface g0/0/0 
[r3-GigabitEthernet0/0/0]ip address 192.168.1.65 27 
[r3]interface g0/0/01
[r3-GigabitEthernet0/0/1]ip address 192.168.1.97 27
[r3]ospf 1 router-id 3.3.3.3 
[r3-ospf-1]area 0 
[r3-ospf-1-area-0.0.0.0]network 192.168.1.65 0.0.0.0 
[r3]ospf 1 router-id 3.3.3.3 
[r3-ospf-1]area 1 
[r3-ospf-1-area-0.0.0.1]network 192.168.1.97 0.0.0.0  
[r3-GigabitEthernet0/0/0]ospf authentication-mode md5 1 cipher  123456

AR4

[r4]interface g0/0/0 
[r4-GigabitEthernet0/0/0]ip address 192.168.1.98 27 
[r4]interface g0/0/1 
[r4-GigabitEthernet0/0/1]ip address 192.168.1.129 27  
[r4]ospf 1 router-id 4.4.4.4 
[r4-ospf-1]area 1 
[r4-ospf-1-area-0.0.0.1]network 192.168.1.98 0.0.0.0
[r4-ospf-1-area-0.0.0.1]network 192.168.1.129 0.0.0.0 
[r4-GigabitEthernet0/0/0]ospf  authentication-mode  md5 1 cipher 123456 
[r4-GigabitEthernet0/0/1]ospf  authentication-mode  md5 1 cipher 123456

AR5

[r5]interface g0/0/0 
[r5-GigabitEthernet0/0/0]ip address 192.168.1.130 27
[r5]interface LoopBack  0 
[r5-LoopBack0]ip address 192.168.1.225 32  
[r5]ospf 1 router-id 5.5.5.5 
[r5-ospf-1]area 1 
[r5-ospf-1-area-0.0.0.1]network 192.168.1.130 0.0.0.0 
[r5-ospf-1]default-route-advertise  
[r5-GigabitEthernet0/0/0]ospf authentication-mode  md5  1 cipher  123456