ospf综合实验

实验要求

搭建拓扑图 并进行网段划分

 

网段划分按区域划分

172.16.0.0/16划分成8个网段使用6个保留2个

再将其进行细分 

1.首先做基本配置

[r1]interface g0/0/0  
[r1-GigabitEthernet0/0/0]ip address 172.16.33.2 29
[r1]interface LoopBack 0
[r1-LoopBack0]ip address 172.16.34.1 24

[r2]interface g0/0/2
[r2-GigabitEthernet0/0/2]inter g0/0/0
[r2-GigabitEthernet0/0/0]ip address 172.16.33.3 29
[r2-GigabitEthernet0/0/0]inter loopback 0
[r2-LoopBack0]ip address 172.16.35.1 24

其他同理

2.搭建mgre

r3中心

[r3]ip route-static 0.0.0.0 0 1.0.0.2 缺省
[r3]interface t0/0/0
[r3-Tunnel0/0/0]ip address 172.16.1.1 29
[r3-Tunnel0/0/0]tunnel-protocol gre p2mp 
[r3-Tunnel0/0/0]source 1.0.0.1
[r3-Tunnel0/0/0]nhrp network-id 100

[r3-Tunnel0/0/0]nhrp entry multicast dynamic 开启伪广播

分支

[r5]ip route-static 0.0.0.0 0 3.0.0.2 
[r5]interface t0/0/0
[r5-Tunnel0/0/0]ip address 172.16.1.2 29
[r5-Tunnel0/0/0]tunnel-protocol gre p2mp 
[r5-Tunnel0/0/0]source Serial 4/0/0
[r5-Tunnel0/0/0]nhrp network-id 100 
[r5-Tunnel0/0/0]nhrp entry 172.16.1.1 1.0.0.1 register 

[r6]ip route-static 0.0.0.0 0 2.0.0.2

[r6]interface t0/0/0
[r6-Tunnel0/0/0]ip address 172.16.1.3 29 
[r6-Tunnel0/0/0]tunnel-protocol gre p2mp 
[r6-Tunnel0/0/0]source Serial 4/0/0
[r6-Tunnel0/0/0]nhrp network-id 100
[r6-Tunnel0/0/0]nhrp entry 172.16.1.1 1.0.0.1 register 

[r7]ip route-static 0.0.0.0 0 4.0.0.2

[r7]interface t0/0/0
[r7-Tunnel0/0/0]ip address 172.16.1.4 29 
[r7-Tunnel0/0/0]tunnel-protocol gre p2mp 
[r7-Tunnel0/0/0]source GigabitEthernet 0/0/0
[r7-Tunnel0/0/0]nhrp network-id 100  
[r7-Tunnel0/0/0]nhrp entry 172.16.1.1 1.0.0.1 register 

3.开启ospf协议

[r1]ospf 1 router-id 1.1.1.1
[r1-ospf-1]area 1
[r1-ospf-1-area-0.0.0.1]network 172.16.34.0 0.0.0.255
[r1-ospf-1-area-0.0.0.1]network 172.16.33.0 0.0.0.255

   
[r2]ospf 1 router-id 2.2.2.2
[r2-ospf-1-area-0.0.0.1]network 172.16.35.0 0.0.0.255
[r2-ospf-1-area-0.0.0.1]network 172.16.33.0 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]network 172.16.32.0 0.0.0.255 
[r3-ospf-1-area-0.0.0.1]network 172.16.33.0 0.0.0.255

[r3-ospf-1]area 0
[r3-ospf-1-area-0.0.0.0]network 172.16.1.1 0.0.0.0

  
[r5]ospf 1 router-id 5.5.5.5  
[r5-ospf-1]area 0
[r5-ospf-1-area-0.0.0.0]network 172.16.1.2 0.0.0.0

其他同理

4.r12上开启rip协议 

[r12]rip 1
[r12-rip-1]version2
[r12-rip-1]network 172.16.0.0  
[r3]interface t0/0/0  
[r3-Tunnel0/0/0]ospf network-type broadcast  

5.更改mgre环境中的接口类型 

[r3]interface t0/0/0  
[r3-Tunnel0/0/0]ospf network-type broadcast  

[r5]interface t0/0/0  
[r5-Tunnel0/0/0]ospf network-type broadcast  

[r6]interface t0/0/0  
[r6-Tunnel0/0/0]ospf network-type broadcast  

[r7]interface t0/0/0  
[r7-Tunnel0/0/0]ospf network-type broadcast  

6.修改R567的接口优先级

[r5-Tunnel0/0/0]ospf dr-priority 0

[r6-Tunnel0/0/0]ospf dr-priority 0

[r7-Tunnel0/0/0]ospf dr-priority 0 

不参与dr，bdr选举避免冲突

7.测试一下mgre

 

 

 

 互相能通mgre没有问题

7. 在R9和R12上进行多进程双向重发布

[r9]ospf 1    
[r9-ospf-1]import-route ospf 2

[r12]ospf 1 
[r12-ospf-1]import-route rip 

8.abr上做域间路由汇总asbr上域外路由汇总

[r3]ospf 1 
[r3-ospf-1]area 1
[r3-ospf-1-area-0.0.0.1]abr-summary 172.16.32.0 255.255.255.0 

[r6]ospf 1    
[r6-ospf-1]area 2
[r6-ospf-1-area-0.0.0.2]abr-summary 172.168.128.0 255.255.255.0

[r7]ospf 1
[r7-ospf-1]area 3
[r7-ospf-1-area-0.0.0.3]abr-summary 172.16.64.0 255.255.255.0

[r9]ospf 2  
[r9-ospf-2]area 4
[r9-ospf-2-area-0.0.0.4]abr-summary 172.16.96.0 255.255.255.0

[r12]ospf 1

[r12-ospf-1-area-0.0.0.1]abr-summary 172.168.129.0 255.255.255.0

9.将area1做成完全末梢区域area2area3做成完全的nssa区域

[r3]ospf 1  
[r3-ospf-1]area 1 
[r3-ospf-1-area-0.0.0.1]stub

1区域r1，r2同理

[r6]ospf 1  
[r6-ospf-1]area 2
[r6-ospf-1-area-0.0.0.2]nssa no-summary

[r11]ospf 1 
[r11-ospf-1]area 2
[r11-ospf-1-area-0.0.0.2]nssa 

[r12]ospf 1 
[r12-ospf-1]area 2
[r12-ospf-1-area-0.0.0.2]nssa 

[r7]ospf
[r7-ospf-1]area 3
[r7-ospf-1-area-0.0.0.3]nssa no-summary

[r8]ospf 1 
[r8-ospf-1]area 3
[r8-ospf-1-area-0.0.0.3]nssa

[r9]ospf 1 
[r9-ospf-1]area 3
[r9-ospf-1-area-0.0.0.3]nssa

10.配置空接口防环

[r3]ip route-static 172.16.32.0 19 NULL 0

[r6]ip route-static 172.16.128.0 19 NULL 0

[r7]ip route-static 172.16.64.0 19 NULL 0

[r9]ip route-static 172.16.96.0 19 NULL 0

[r12]ip route-static 172.16.160.0 19 NULL 0

11.配置nat

[r3]acl 2000
[r3-acl-basic-2000]rule permit source 172.16.32.0 0.0.255.255
[r3-acl-basic-2000]q
[r3]interface s4/0/0
[r3-Serial4/0/0]nat outbound 2000 

[r7]acl 2000
[r7-acl-basic-2000]rule permit source 172.16.64.0 0.0.255.255
[r7-acl-basic-2000]q
[r7]interface g0/0/0
[r7-GigabitEthernet0/0/0]nat outbound 2000

[r6]acl 2000
[r6-acl-basic-2000]rule permit source 172.16.128.0 0.0.255.255
[r6-acl-basic-2000]q
[r6]interface g0/0/0
[r6-GigabitEthernet0/0/0]nat outbound 2000

[r5]acl 2000    
[r5-acl-basic-2000]rule permit source 172.16.1.0 0.0.0.255
[r5-acl-basic-2000]q
[r5]interface s4/0/0 
[r5-Serial4/0/0]nat outbound 2000
 

12.区域认证保证安全

[r1]ospf 
[r1-ospf-1]area 1
[r1-ospf-1-area-0.0.0.1]authentication-mode md5 1 cipher 1234 

[r2]ospf 
[r2-ospf-1]area 1
[r2-ospf-1-area-0.0.0.1]authentication-mode md5 1 cipher 1234 

[r3]ospf    
[r3-ospf-1]area 1
[r3-ospf-1-area-0.0.0.1]authentication-mode md5 1 cipher 1234 

其他区域同理

13.加快收敛速度

[r3]interface t0/0/0
[r3-Tunnel0/0/0]ospf timer hello 5
[r3-Tunnel0/0/0]ospf timer dead 20

[r5]interface t0/0/0
[r5-Tunnel0/0/0]ospf timer hello 5
[r5-Tunnel0/0/0]ospf timer dead 20

[r6]interface t0/0/0
[r6-Tunnel0/0/0]ospf timer hello 5
[r6-Tunnel0/0/0]ospf timer dead 20

[r7]interface t0/0/0
[r7-Tunnel0/0/0]ospf timer hello 5
[r7-Tunnel0/0/0]ospf timer dead 20

14.测试结果