how to setup lan?

by a (linksys, dlink, netgear) router w/ a 4 port switch and wireless capabilities. Plug in your PC's to the network ports or enable their wireless.. If you have more then 4 PC's then buy an extra 10/100/1000 5 or 8 port network switch..voila..instant network..just dont forget to secure your wireless..

for how many computers? Are they all next to each other? If its just a handful of machines and they are close to each other the you can buy a very cheap 5 port hub/switch. If the machines are not all near each other then look to purchase a 5 port hub/switch that also has wireless. They typically have getting started guides that make it very easy to get it up and running.Make sure all the coputers have a network jack in them as well.

Wired, Wireless or though existing phonelines in your wall. There are many different ways to set up a LAN depending on needs.How many computers do you intend to connect, and the type of connection you are using: ISP, Cable/DSL, Satellite, and whether you want to run cables in your walls or along the walls and floors. Or go wireless so you don't have to mess with all the wiring.To set up a LAN of 2 computers, you can use a crossover cable. To use this, you will need a NIC in both PCs. The PC that is directly connected to the Internet will become the server. If the PC connected to the Internet already uses a NIC due to Cable/DSL, you will need to install a second NIC for the crossover cable.For 2 or more computers in the network, you will need to have a hub, switch or Router. Each of these devices have different functions, but they all allow to have more than one PC on the Internet at the same time.