Efficiency analysis of public hotspots wifi networks

Introduction 2

1. Install Wireshark and learn how to use it 3

1.1 Wireshark installer for 64-bit Windows (or 32-bit) 3

1.2 WireShark Install on Mac OS X 3

1.3 Installation of WireShark on Ubuntu 3

1.4 Use of Wireshark 3

From all methods of a study of computer networks the analysis of a traffic - the most laborious and labor-consuming. Intensive flows of the modern networks generate a lot of unsolved material in which it is not simple to find particles of the useful information. During the existence the stack of TCP/IP acquired numerous applications and additions, the score which goes on hundreds and thousands. These are application and official protocols, authentication protocols, tunneling, a network access and so on. Except knowledge of elements of network interactions, the researcher of a traffic needs to be guided freely in all this legal diversity and to be able to work with specific software tools - analyzers of a traffic (protocols).

The functionality of the analyzer of a traffic is not only a possibility of use of promiscuos of an operation mode of the network interface card for interception. Similar software shall be able to filter effectively a traffic both at a collection stage, and during a study of separate units of transmission (frames, packets, segments, datagrams, messages). And the more protocols analyzers of a traffic "knows", the better.

The modern analyzers of protocols of a lot of things are able: to read traffic statistics, to draw diagrams of the course of network interactions, to derive data of application protocols, to export results of operation to different formats. Therefore selection of tools for the analysis of a network traffic is a topical issue. In this operation methods of the analysis of a traffic by means of Wireshark program tools are provided.

Wireshark is a powerful network analyzer which can be used for the analysis of the traffic passing through the network interface of the computer. It can be necessary for detection and the solution of problems with a network, debugging of web applications, network programs or the websites.

Wireshark allows to view completely packet contents at all levels, so you will be able to understand better how the network at a low level works.

To conduct researches of network applications and protocols and also to find problems in network functioning, and that is important, to clarify the reasons of these problems.

It is quite obvious that in order that it is the most effective to use traffic analyzers, the general knowledge and understanding of operation of networks and network protocols is necessary at least.

All packets are intercepted in real time and are provided in a format, convenient for reading. The program supports very powerful filtering system, illumination in color, and other features which will help to find the necessary packets.

In this thesis we considered options of use Wireshark for the analysis of a traffic.

Research object: analysis of network protocols.

Object of research: applications of the software of Wireshark for systems analysis of a traffic of the Wi-fi network.

Operation purpose: to carry out the analysis of efficiency of the Wi-fi network.

For achievement of a goal research problems were defined:

1) To study features of the modern analyzers of protocols of a network.

2) To study methods of operation Wireshark.

3) To carry out installation of Wireshark on different platforms (OS).

4) To carry out search and a project startup on github.

5) To make collection of statistical data by means of wireshark about own Wi-Fi.