eNSP:ospf相关实验

一、实验要求：

二、实验步骤

1.建设如下图拓扑并划分网段

2.配置R1-R4的接口和回环地址

R1:

[r1]int g0/0/0

[r1-GigabitEthernet0/0/0]ip add 192.168.1.1 27

[r1]int l 0

[r1-LoopBack0]ip add 192.168.1.33 27

R2:

[r2]int g0/0/0

[r2-GigabitEthernet0/0/0]ip add 192.168.1.2 27

[r2]int l 0

[r2-LoopBack0]ip add 192.168.1.65 27

R3:

[r3]int l 0

[r3-LoopBack0]ip add 192.168.1.97 27

[r3]int g0/0/1

[r3-GigabitEthernet0/0/1]ip add 192.168.1.4 29

R4:

[r4]int g0/0/0

[r4-GigabitEthernet0/0/0]ip add 192.168.1.5 27

[r4]int l 0

[r4-LoopBack0]ip add 192.168.1.129 27

3.配置ospf协议

R1;

[r1]ospf 1 r    
[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-ospf-1-area-0.0.0.0]network 192.168.1.33 0.0.0.255

R2:
[r2]ospf 1 r    
[r2]ospf 1 router-id 2.2.2.2
[r2-ospf-1]area 0
[r2-ospf-1-area-0.0.0.0]network 192.168.1.2 0.0.0.0
[r2-ospf-1-area-0.0.0.0]network 192.168.1.65 0.0.0.255

R3:

[r3]ospf 1 ro    
[r3]ospf 1 router-id 3.3.3.3
[r3-ospf-1]area 0
[r3-ospf-1-area-0.0.0.0]network 192.168.1.3 0.0.0.0
[r3-ospf-1-area-0.0.0.0]network 192.168.1.97 0.0.0.255
[r3]ospf 1 router-id 3.3.3.3
[r3-ospf-1]area 1
[r3-ospf-1-area-0.0.0.1]net    
[r3-ospf-1-area-0.0.0.1]network 192.168.1.4 0.0.0.0

R4:
[r4]ospf 1 rou    
[r4]ospf 1 router-id 4.4.4.4
[r4-ospf-1]area 1
[r4-ospf-1-area-0.0.0.1]network 192.168.1.5 0.0.0.0   
[r4-ospf-1-area-0.0.0.1]network 192.168.1.129 0.0.0.255

4.查看ospf

5.配置BR和BDR

[r1]int g0/0/0
[r1-GigabitEthernet0/0/0]ospf dr-priority 1

[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]ospf dr-priority 1

6.再次查看ospf