Static routes refer to routing information manually configured by users or network administrators. When the network topology or link status changes, the network administrator needs to manually modify the related static routing information in the routing table. Static routing information is private by default and will not be passed to other routers. Of course, the network administrator can also set the router to be shared. Static routing is generally applicable to a relatively simple network environment. In such an environment, network administrators can easily and clearly understand the topology of the network and set correct routing information.
1: Let's start to configure the static route in the following figure 2: Configure the IP next hop network segment of the 
R1 port
3: Configure R2
port IP
next hop network segment
4: Configure R3
port IP
next hop network segment
5: Set the PC
to set the IP subnet mask gateway of the 3 PC terminals
6: Test for interoperability