How do you create a LAN in a network. What are basic requirements to communicate to other LANs?

LAN are created with help of switched and IP POOL should be same for computers to communicate with each other. 

To communicate with other LAN if the ip pool of other LAN is different we have to use router in between to communicate two LAN with each other or we can say router on a stack.

To communicate with other LAN if the ip pool of other LAN is same then we just require switches to communicate two LANs with each other. 

To communicate with other LAN if the VLAN of LAN is differnet in this scenario we again need a router on stack technique to communicate LANs with each other.

A layer 2 device is needed to create a LAN. Layer 3 device is needed for LANs to communicate.

1 Assess your needs in a network. The devices you use to set your network up will determine your network's capabilities. You should address your needs in terms of cost, security, connection speed, expandability (adding more computers or devices later) and distance between computers. In general, you will need to keep all the computers in the network within 100 yards (91 m) of each other. 2 Ensure that your computers have wireless networking cards installed. In order to communicate wirelessly with other computers in the network, each computer must have a wireless networking card. If your computers are only a few years old, you are almost guaranteed to already have one built-in, as this is a standard feature on all computers being produced today. If you have an older computer, you may need to purchase and install a networking card. 3 Set up an Internet connection. While LANs can be set up simply to share files between computers without Internet connectivity, there is little benefit to doing so considering the cost of wiring the entire network. To share an Internet connection between computers, you will first need a broadband Internet connection (such as cable or DSL) set up for your primary computer. Contact a local Internet service provider (ISP) to establish a connection if you don't already have one. 4 Purchase a wireless router. You will need to broadcast your Internet connection wirelessly, and for this, you need a router. When buying a router, make sure you get one that is designed for your connection type (cable, DSL, etc.). You should also consider the strength of the router's signal. The packaging will describe how far you can expect the router's signal to broadcast. It will need to reach every computer in your network. 5 Install the router. To install the router, run your main Ethernet cable (the one used for connecting your primary computer to the Internet) from your modem into the router. Plug the router's power cord in, and then install any software that it came with on each computer in the network. When you are finished, the router should begin broadcasting your Internet connection wirelessly. 6 Connect each computer to the wireless network. On each computer, find the wireless network's name that you assigned during the software installation. Connect to that network using the password that you created. 7 Share files over the network. To make files on 1 computer accessible to users on other computers, you must mark them as shared. In Windows, you can do this by placing the files in the "Shared Documents" folder or by right-clicking on each file and checking "Share this file" in the "Properties" menu. The process will differ slightly for other operating systems. 8 Connect to any devices in the network. To connect to devices such as printers and scanners, these devices will also need to be able to communicate wirelessly (this feature is not nearly as common on printers as on computers). To connect to a device, simply locate the device's icon on the network drive on each computer. Double-clicking on a printer's icon, for example, should install the printer and enable it for future use.  

We could create LAN by using client pc, switches/hub, RJ-45, cable for connecting the nodes. 

planning - router or switch + cables + access points and NAT and devices including pc's and printers . 

 

If you are Create lan network , you can use cat5(100mbps speed),Cat6(1 gbps speed). coper cable 70-80 meter best working if leangth more than 80 use fiber and using Switch for inter communication.

We need Router and optical fiber

A local-area network (LAN) is a computer network that spans a relatively small area. Most often, a LAN is confined to a single room, building or group of buildings, however, one LAN can be connected to other LANs over any distance via telephone lines and radio waves. A system of LANs connected in this way is called a wide area network  .

LAN - Local Area Network, when 2 or more devices are connected then a n/w is established.

 

 

LAN is used for communication between two or more systems in a room or in a building.

it helps in sending and receiving the data from one p.c to other.

you can make a LAN connection by making physically connection on them and then provide the specific interfaces on the links of that LAN.

you can use a HUB and Switch for better communication or for extend your LAN network.

It depends that what kind of Network you are going to create but basic need is for creating a network is CAT5 Cables switches or HUB, access points and routers 'OR' if you want to create lan network in single laptop then it's also possible using vmware or some softwares.

Baisc need of communication is reachability that can be done by using cables, WiFi and router