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By use of TCP/IP, several computers on small network in a department can use these protocols in conjunction with other protocols on a single LAN. In this protocol suite, the IP components helps in routing form the small LAN in that department to regional and also to the global internet. TCP/IP is made up of layers which enable it to perform its tasks. The IP part is responsible of moving packet from one node to the other based on the destination IP address. This IPs are mainly assigned by the internet authorities to service providers and thus making it easier for computers to communicate because the IPs assigned to them makes them unique and thus packets can move from source to destination all over the world.

For example, your Internet server provider may provide you with a PPP connection so that the provider's server can respond to your requests, pass them on to the Internet, and forward your requested Internet responses back to you. PPP uses the Internet protocol and is designed to handle others. It is sometimes considered a member of the TCP/IP suite of protocols. Relative to the OSI reference model, PPP provides layer 2 (data-link layer) service. Essentially, it packages your computer's TCP/IP packets and forwards them to the server where they can actually be put on the Internet.

Wireless LANs provide all the functionality of wired LANs, without the physical constraints or the wired connection itself. Wireless LAN configurations range from simple peer-to-peer topologies to complex networks offering distribution data connectivity and roaming. Besides offering end-user mobility within a networked environment, wireless LANs enable portable networks, allowing LANs to move with the knowledge workers that use them. One of the aims of the project is to illustrate suitability of a wireless LAN for the in use today. This will allow us to gain a more fundamental insight in the possibilities and restrictions of wireless LAN.

TCP/IP is quickly becoming the networking protocol and is the one I concentrate on in this subject. B) Network services To be of use to users the network will provide various services including file, print and device sharing, electronic mail etc. 1.3 TYPES OF NETWORKS A) Network categories · LAN (local ... ... middle of paper ... ...UNIX the routing table can be viewed using the netstat command. The route a packet follows can be viewed using the traceroute command. Routing tables are either created statically, or by the systems administrator configuring the system, using the startup or configuration fiels, to used a pre-defined, unchanging route.dynamically.

This technology allows us to use wireless and still have some of the same protection as with a wired network. How Secure is it really? When a client communicates with an access point, this is when the network is most vulnerable to breaches in security. It is at this time that a hacker can access your network. Security issues are what continue to hold Wi-Fi technology back.

Once a connection is established between the user and the network, the user will be prompted with a login screen and password if it is a fee-based type network. Though there’re also free-based network connections as well in some areas. Wi-Fi networking around the world is creating hot spots in cities where anyone with a laptop can wirelessly plug into the internet.

The packet-switching nature of the Internet gives it sufficient speed and flexibility to support real-time communication, such as sending messages to other people in a chat environment (IRC). Every packet is written in a particular protocol language, called TCP/IP, which stands for Transmission Control Protocol/Internetworking Protocol. This protocol is the common language of the Internet, and it supports two major programs called File Transfer Protocol (FTP) and Telenet. FTP lets the transfer files from one Internet computer to another. Telnet lets a person to log into a remote computer.

· routers, like every other device on the network, send and receive data on the network, and build ARP tables that map IP addresses to MAC addresses · if the source resides on a network that has a different network number than the desired destination, and if the source does not know the MAC address of the destination, it will have to use the router as a default gateway for its data to reach the destination · routed protocols direct user traffic, whereas routing protocols work between routers to maintain path tables · network discovery for distance-vector routing involves exchange of routing tables The next chapter discusses the functions of the transport layer. Bibliography: www.news.com

• Network Adapter: is an important component of making up LANS, which is used to connect a network and convert computer data into electronic signals. In order to move data packet to and from network interface cards to different shared channels, network adapter associates with network access element named Media Access Control ... ... middle of paper ... ...s to translate the packet back into meaningful form and utilize it with suitable application. Technologies Used to Build a LAN According to Mitchell (2016), WiFi or Ethernet is a modern local area network used for connecting with different devices. Typically, a traditional Wi-Fi LAN operates a single or a few of wireless access points for providing a service to devices within the signal range. The role of access point is to manage networking traffic from connected devices.

A network computer or data network is a telecommunications network that allows computers to exchange data. In computer networks, networked computing devices transmit data to each other using data connections. These connections are established with nodes using either cable or through wireless media. The most famous and interesting computer network is the internet network. There are many types of computer networks, local area networks (LANs) to wide area networks (WAN) campus area networks ( containers ) metropolitan area network MAN ) and home area networks (HANs).