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 costs very little, contrary to what people may think.
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 an RJ45 local area network in Windows, you will need:
To create an RJ45 local area network, it is recommended that you adopt a so-called "star" structure, where the computers are each connected to the hub via an RJ45 cable. A hub is a device that transfers data from one computer to another. The choice of hub will be made in function of the number of connected computers in order to have enough plugs (called "ports") on the hub.
In the event of a large network or a network with substantial bandwidth requirements, a switch will favorably replace the hub, as it makes it possible to distribute packets only to the computers concerned, whereas a hub systematically sends packets to all connected computers.
The structure of such a network looks like this:
If you want to connect two computers only, it is possible to avoid using a hub, by directly connecting the two computers with a crossover RJ45 cable.
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|