Static routing application

Analysis of the experimental diagram: the function of static routing lies in the choice of specified routes. in this diagram, the server with routing function has three network cards, eth0 connects intranet, eth2 connects TieTong, and eth3 connects telecommunications. However, only one network card can be used as a gateway in this network. Which network card is used as the gateway? You can think about it. By the way, it is eth2 or eth3. If you choose eth2, then eth3 will be the backup network, and if it is eth3, then eth2 will be the backup. However, the intranet eth0 must not be set as the gateway. It does not know how to send the data to the next route, so that the data loops in the server and cannot be sent.

Static routing applications: use eth2 as the primary network connection and eth3 as the backup network. We can open a port on the server and assign it to the eth3 network card using a static route. Allow a small number of people to access eth3 traffic.

Note: this is an application as a static route.