Comprehensive experiment of static routing

        Complete the following static routing comprehensive experiment .

Catalog

One : Segment the above topology IP Address partition

Two : For each port ip Address configuration  

3、 ... and ： Write the static route between each network segment on each router , Configure the default routing to achieve network wide accessibility

5、 ... and ： complete AR4 And AR5 Floating static

6、 ... and ： test ：

Add ：

---

One : Segment the above topology IP Address partition

Analysis of the above topology shows

We need six backbone links ,8 A loopback interface . We can divide the two loopback interfaces of the same router into one network segment and the six backbone links into one network segment , In this way, we only need to borrow three bits from the host to divide into eight network segments , Reserve three network segments  .

The specific operation is shown in the figure below ：

Two : For each port ip Address configuration  

Respectively for AR1,AR2,AR3,AR4,AR5 Port loopback interface , To configure ip Address ：

In the configuration ip We can mark the network segment near each port with text in advance .

Here's the picture ：

After entering each router interface configuration ip Then we can check ip Is there anything less written or wrong in the interface summary

Be careful ！！！ When configuring the loopback interface, you need to create the loopback interface first

example ：[r1]interface LoopBack 

  <0-1023>  LoopBack interface number

[r1]interface LoopBack 0

[r1-LoopBack0]ip address 1.1.1.1 24

The following is what has been configured in each router ip Interface summary ：

AR1：

 

AR2：

AR3：

AR4：

AR5： 

 

3、 ... and ： Write the static route between each network segment on each router , Configure the default routing to achieve network wide accessibility

After successful configuration ip Later, we found that the experimental requirements AR1-AR4 Cannot write directly AR5 So let's not look at the static routing from AR4 To AR5 Two network segments of , First the AR1 To AR4 Write the direct static route . After writing, we'll give AR1-AR4 Write out their default routes so that each network segment can be connected

Be careful ！！ In the experiment, it is only required not to follow AR1-AR4 Write a static route to AR5 , But we still need to write AR5 go back to AR1-AR4 Static routing of

After configuring the static route, we need to check the route table to check whether there are less written or wrong route entries

Here are AR1-AR5 The routing table after the configuration is successful ：

AR1:

 

AR2:

 

AR3:

 

AR4:

 

AR5:

 

5、 ... and ： complete AR4 And AR5 Floating static

In order to achieve AR4-AR5 We need to modify the static route between 100m Priority of network segment

So we need to be in AR1-AR4 A default route written in is the same as the default route we wrote for the first time, but the priority needs to be modified to be ratio 60 A big number .

for example ：

[r1]ip route-static 0.0.0.0 0 192.168.1.2 preference 61

Be careful ！！！ We also need to AR5 Go back to the static routing priority modification between various network segments

After the configuration is completed, we can close AR4-AR5 Between 1000m And then check whether the routing table has changed the priority

6、 ... and ： test ：

We use AR1 Any one of ip Come on pingAR5 all ip To test whether the network forms a path .

Sure ping After passing the test, it will represent us to complete the experiment .

Guard ring ： Because we are reasonable ip Planning therefore avoids the generation of routing black holes. Every address in our routing table has an actual address in the network , But our loopback address simulates the user segment network, so it is very likely that the port will be closed , Disconnect, etc , So we need to write AR1-AR4 The specific operation is shown in the figure below ：