Information Computer

Saturday, January 14, 2012

Build a LAN with Wireless [Packet Tracer]

if yesterday I had to review about how to build a LAN with a switch or hub. and we already know what a LAN. this time we will also discuss other again. but the difference is now we will use the wireless media.

Wireless is a wireless technology, in this case is to have telecommunications using electromagnetic waves instead of cables. Current wireless technology is growing rapidly, can be seen by naked eye with a growing number of cellular phone usage, but it also develops wireless technology used for Internet access.

Wireless LANs using elektromagetik waves (radio and infrared) to perform data communication channel data from one point to another point without going through the physical facility. This connection uses a specific frequency to distribute the data, most of the Wireless LAN using a frequency of 2.4 GHz. Frequency is called the Industrial, Scientific and Medical Band or often called the ISM band.

A wireless access point is a wireless networking device that connects wireless clients (such as a computer equipped with a USB wireless adapter or a laptop equipped with ExpressCard wireless adapter) with a wired network is usually also can connect to the internet through it.

now its time to build a wireless LAN simulations with Packet Tracer. follow these instructions:

1. open Packet Tracer
2. click icon wireless devices , then click AccessPoint-PT. add to your worksheet.

3. double click accesspoint0 , click tab config. change the SSID on port 1 with "computer-unu"


4. then add PC devices to your work sheet.
5. double click PC0. in tab physical turn off power. then change module fast-ethernet with Linksy-WM300. note the picture below.

6.copy PC0 and design your network like this.

7. connect all PCs with a wireless access point. see the following figure.


8. and thus as follows.

9. all PCs are connected now live set IP for each PC.
PC0
IP address 192.168.2.1
subnet 255.255.255.0

PC1
IP address 192.168.2.2
subnet 255.255.255.0

PC2
IP address 192.168.2.3
subnet 255.255.255.0


From Wikipedia! 

A local area network (LAN) is a computer network that interconnects computers in a limited area such as a home, school, computer laboratory, or office building. The defining characteristics of LANs, in contrast to wide area networks (WANs), include their usually higher data-transfer rates, smaller geographic area, and lack of a need for leased telecommunication lines.


ARCNET, Token Ring and other technology standards have been used in the past, but Ethernet over twisted pair cabling, and Wi-Fi are the two most common technologies currently used to build LANs.

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