UNDERSTANDING LAN
NETWORK (LOCAL AREA NETWORK)
LAN
network is a computer network covering a small area; such as campus computer
networks, buildings, offices, in homes, schools or smaller ones. Currently,
most LAN networks are based on IEEE 802.3 Ethernet technology using a switch
device, which has data transfer rates of 10, 100, or 1000 Mbit / s.
In
addition to Ethernet technology, current 802.11b technology (or so-called
Wi-fi) is also often used to form LAN networks. Places that provide LAN network
connection with Wi-fi technology commonly called hotspot.On a LAN network, each
node or computer has its own computing power, unlike the dump terminal concept.
Each computer can also access the resources in the LAN network in accordance
with the permissions that have been set. Resources can be data or devices such
as printer. Also read how to list wifi id telkomsel
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| LAN Topology |
On
a LAN network, a user can also communicate with other users by using the
appropriate application. Unlike Wide Area Network (WAN) Network, the LAN
network has the following characteristics:
1. Have a higher data rate
2. Includes a narrower geographic area
3. Does not require telecommunication lines
hired from telecommunication operators
Usually
one of the computers between the computer network will be used as a server that
governs all the systems within the network.
Working principle of LAN Network
(Local Area Network)
LAN
network can define as network or network of a number of computer system whose
location is limited in one building, one building complex or one campus and do
not use media of public communication facilities like telephone, but owner and
communications media manager is owning network of LAN itself from above
definition can we know that a LAN network is limited by physical location.
The
use of LAN network itself results in all computers connected in the network can
exchange data or in other words related. Cooperation is growing from only data
exchange to the use of equipment together. LAN networks that generally use hubs
/ switches, will follow the working principle of the hub itself.
In
this case it is that the hub has no knowledge of the destination address so
that broadcasting of the data is broadcast, and also because the hub has only
one collision domain so that if one port is busy then the other ports have to
wait. That is among the advantages and disadvantages of LAN networks. Also read
about PAN network
How to Make LAN Network
LAN
network is a local computer network that is used for limited areas such as home
or school. LAN networking is very easy to create because it only requires some
equipment and settings on the computer. This time I will give a short article
'how to make my own lan' on windows 7.
Tool to build a LAN network
1. Router
The
router is the heart of a network. Router works to connect one network to
another network. In this case, the router connects the Internet network with
the LAN network.
2.Switch
Unlike
the router, the switch works to connect each computer on a LAN network.
3. Ethernet Card
An
Ethernet card is an adapter for plugging an ethernet cable so that the computer
can connect to the network. Usually, on the latest computers, this card has
been embedded onboard so you do not need to buy anymore.
4. Ethernet Cable
That
is the cable used to connect the computer to the router or it could be one
computer with another computer. The end of this cable is given a connector
called RJ-45. RJ-45 has 2 settings, namely straight and cross.Straight is used
to connect the computer to the router while cross is used to connect the
computer directly with the computer.
5. Modem
If
you want to connect your network to internet, then you also have to buy a
modem. If you do not buy a modem, then your computer can only communicate with
other computers contained on the LAN network. see also how to install modem on
daptop
6. Other equipment
Crimping
tool, LAN tester, scissors, multimeter.
Crimping
tool is used to connect RJ-45 with ethernet cable. The LAN tester used for
testing the LAN cable is working or not. As an alternative to speed up or
simplify your work, you can ask the ehternet cable seller for example to
simultaneously pair RJ-45 so that you just connect the cables to the router and
computer. Before preparing the above equipment.
It
is strongly recommended that you do the planning first, which includes the
number of computers, the area, so you can create an effective cable design so
that it can save the required costs. you bia use software like paint to make
the design of your LAN network setup. After that, then you buy the necessary
equipment and attach the equipment-equipment above.
Here
is a model that we will use to build a LAN network (can also for cafe). image
source ( microsoft.com )
1.
Internet
3.
Modem as well as Router that connects the server computer to the internet
4.
Server computer
5.
Switch
Once
the hardware is installed, now is the stage for software settings.These
settings include OS installation, network connection settings, TCP / IP address
configuration, and finally the network test you have installed.
Enable Internet Connecting
Sharing
ICS
aims to share internet connections host computers to other computers.
To
enable ICS on the server computer, go to Control Panel, click Network and
Internet, click Network and Sharing Center, click Change Adapter Center, Right
click on the connection you want to share, click Properties, click Sharing tab,
then check Allow other network users to connect through this computer's
Internet connection, save it.
Okay,
up to this point, only server computers can connect to the internet after the
connection is shared, so each computer must get an IP address.The trick is as
follows:
1.
Open Control Panel, click Network and Internet, click Network and Sharing
Center, click Change Adapter Center.
2.
Right click on LAN Connection, Click Properties
3.
Click Internet Protocol Version 4 (TCP / IPv4) or Internet Protocol Version 6
(TCP / IPv6), and then select properties
4.
Click Obtain an IP address automatically or Obtain an IPv6 address
automatically.
Summary :
Local Area Network
commonly abbreviated LAN is a computer network whose network covers only small
areas such as campus computer network, building, office, home, school or
smaller. Currently, most LANs are based on IEEE 802.3 Ethernet technology using
a switch device, which has data transfer rates of 10, 100, or 1000 Mbit / s. In
addition to Ethernet technology, current 802.11b technology (or so-called
Wi-fi) is also often used to form LANs. Places that provide LAN connection with
Wi-fi technology commonly called a hotspot