When you have several computers, it can be convenient to connect them to each other to create a Local Area Network (LAN). Setting up such a network is a simple process that will be shown in this article.
Here are a few advantages you could enjoy by setting up a local area network:
There are two main types of local network architecture:
To create a RJ45 local area network, it is recommended that you adopt a so-called Star structure, where computers are connected to the hub via a RJ45 cable. A hub is a device that transfers data from one computer to another. The choice of using a hub will be made in function of the number of computers, in order to have enough plugs (called "ports").
In case of having a large network or a network with substantial bandwidth requirements, a switch will be better than a hub, as it will make possible to send packets only to the concerned computer, whereas a hub systematically sends packets to all connected computers.
The structure of such a network is:
The following network structures will not work, even if they appear to be correct at first, unless the computers have several network interfaces (several cards) and the cables used between two computers are crossover cables:
Incorrect RJ45 network: