HCIA static routing basic simulation experiment

        Static routing （ English ：Static routing） Is a way of routing , Route item （routing entry） Manually configured by , Not dynamically . Unlike dynamic routing , Static routing is fixed , Will not change , Even if network conditions have changed or been reconfigured . Generally speaking , Static routing is that the network administrator adds the routing table item by item .

        We use Huawei eNSP To do this experiment .

      First choose three routers and three PC Set up a LAN like the one shown above at the terminal . This LAN is controlled by 192.168.1.0/2.0/3.0/4.0/5.0  255.255.255.0 Five broadcast domains .

        The next step is to manually allocate three routers IP Address .

  Next, there are three PC The terminal is written manually IP, I wrote three IP In turn 192.168.1.1/24  192.168.3.2/24  192.168.5.2/24

Then, the focus of this experiment ----- Handwritten static routing

First of all, we need to briefly understand the function and basic working principle of the router

What routers do ：

1. Interconnection between different networks
2. Choose the path for the data it carries  --- Route selection

How routers work ：

When the packet enters the router , First check the target IP Address ; Then query the local routing table , If there are records in the table , take Unconditional Forward as recorded ; If there is no record , The traffic will be discarded ;

Configuration command ：

[Huawei]ip rout-static 192.168.X.0  24 192.168.X.X

here 192.168.X.0 Is the target network number ,24 The subnet mask can also be written as 255.255.255.0,192.168.X.X For the next hop, it flows into the next entry interface IP Address

for example ：

PC1 Want to be with PC2 The communication is AR1 Input [Huawei]ip route-static 192.168.3.0 24 192.168.2.2

stay AR2 Input [Huawei]ip route-static 192.168.1.0 24 192.168.2.1

PC1 Want to be with PC3 Communication is troublesome and needs to be written twice , Because the next jump is the next entrance after starting from here , You can't skip to the next entrance , So we have to get to 192.168.4.0/24 Until then 192.168.5.0/24 Broadcast area ,AR3 On the contrary, the same method .

Then input [Huawei]display ip routing-table          View routing table

  As can be seen in the picture Static It's the static route we just wrote

Write it in the same way as other routers , Just OK 了 ！

Finally, check , Three stations PC Go to each other ping

  You can see three PC Can communicate with each other .

                                                                                        I hope this article is helpful to you , thank you ！

                                                                                          It's not easy to make , Please give a compliment before you leave