Dynamic routing ofps protocol configuration

The experimental requirements ：

 

The experimental steps ：

First step ： Divide the subnet

 

 

The second step ： Configure each port , Loopback interface ip Address

Before configuration, we can use text to mark the port addresses as shown in the following figure

  With r1 For example ：

[r1]interface g0/0/0   Enter an interface

[r1-GigabitEthernet0/0/0]ip address 192.168.1.1 29        To configure ip Address   

[r1-GigabitEthernet0/0/0]ip address 192.168.1.1 29 Masks can be abbreviated

[r1]interface LoopBack 0

[r1-LoopBack0]ip address 192.168.1.1  29

Finish in the configuration ip You can check ip Interface summary to check for errors

[r1] dispaly ip interface brief

Finish in the configuration ip After that, we will intervene in the election to ensure that r3 by dr：

1. DR The highest priority ,BDR Second largest -- Bear in mind ospf The election is non preemptive ; So after modifying the priority , All routers need to be restarted OSPF process ;

[r2]interface GigabitEthernet 0/0/0

[r2-GigabitEthernet0/0/0]ospf dr-priority  0  Modify interface priority

<r1>reset ospf process    restart ospf process

Warning: The OSPF process will be reset. Continue? [Y/N]:y

2、DR The priority is changed to maximum ,BDR Second largest ; Other equipment is modified as 0; No process restart required

 

The third step ： Announce at each router

End of configuration ip Then we need to open ospf Protocol to declare the network segment of each router

With r1 For example ：

[r1]ospf 1 router-id 1.1.1.1  The process number can be defined at startup 、RID; Default process 1,RID-- The format is IPV4 Address , The whole network is unique ; manual --》 Maximum value of loopback interface --》 Maximum value of physical interface

[r1-ospf-1]

Declare ：1、 Activate -- You can send and receive ospf Information about   2、 The topology information of the selected interface can be shared with neighbors

      3、 Zoning

[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  192.168.1.9  0.0.0.0

ospf At the time of the announcement , You need to use an anti mask , To match the declared address range

After the configuration is completed, we can check the neighbor table ：

[r1]display  ospf peer   Check neighborhood relationships

[r1]display  ospf peer  brief    Check the neighbor Profile

  After each router is announced, we can use r1 Come on ping4.4.4.1 Check whether it is reachable. If the result is reachable, we declare success

Step four ： Summarize the network segments between regions on the border router

1. Regional summary --- OSPF The protocol does not support interface summary ; Only in ABR Admiral a Route calculated by regional topology , Share with B Summarize when area ;

[r3]ospf 1

[r3-ospf-1]area  0

[r3-ospf-1-area-0.0.0.0]abr-summary 192.168.1.0 255.255.255.224

After the configuration is completed, we can r4 There is only one summarized route on

 

Step five ： Each interface is certified

We need to enter each interface to encrypt the interface

1. authentication -- Interface authentication   Configure , Ensure the security of updates

[r1-GigabitEthernet0/0/1]ospf authentication-mode md5  1 cipher 123456

Pattern 、 Number 、 The password requires consistency between neighbors

Step six ： test

After completing all the above configurations, we can use each loopback interface ping r4 Loopback interface

As shown in the figure below, it is generally successful ping After passing the test, it proved that the experiment was successfully completed

So far, our experiment is required to be completed End of experiment