29-09-2012, 03:31 PM
NETWORK ANALYSER
NETWORK ANALYSER.doc (Size: 1.88 MB / Downloads: 31)
Introduction to internetworks
Internet communication has become a fundamental part of life. The World Wide Web contains information about such diverse subjects as atmospheric conditions, crop production, stock prices, and airline traffic. Groups establish electronic mailing lists so they can share information of common interest. Professional colleagues exchange business correspondence electronically, and relatives exchange personal greetings. For over two decades, a new technology has evolved that makes it possible to interconnect many disparate physical networks and make them function as a coordinated unit. The technology, called internetworking, accommodates multiple, diverse underlying hardware technologies by providing a way to interconnect heterogeneous networks and a set of communication conventions that makes them interoperate. The internet technology hides the details of network hardware, and permits computers to communicate independent of their physical network connections. The collections of autonomous systems that communicate with each other via communication links are called internets.
LAN Monitoring
Under this project we plan to make LAN monitoring process a bit easier by providing a tool called as the LAN monitor. A LAN monitor makes these tasks easier by providing tools to analyze the structure and traffic of all connected nodes in a LAN. A LAN monitor does several tasks that allow network mangers to configure and analyze network details like properly connected nodes, available network options, traffic analysis, site blocking etc. Most LANs connect workstations and personal computers. Each node (individual computer ) in a LAN has its own CPU with which it executes programs, but it also is able to access data and devices anywhere on the LAN. This means that many users can share expensive devices, such as laser printers, scanners, etc. as well as data. Users can also use the LAN to communicate with each other, by sending e-mail or engaging in chat sessions.
Related Work
Related work
Any LAN Monitor project consists of various different modules. Each of these modules when considered independently has been major software in its own. Huge amount work is already done in almost every module previously. The modules such as port scanner and LAN sniffer have been implemented in many software and great level of specialization is achieved till date. Some of the most popular and common software for each module is mentioned below.
Ping Monitor
“Ping” is a computer network tool used to test whether a particular host is reachable across an IP network; it is also used to self test the network interface card of the computer, or as a speed test. It works by sending ICMP “echo request” packets to the target host and listening for ICMP “echo response” replies. Ping measures the round-trip time and records any packet loss, and prints when finished a statistical summary of the echo response packets received, the minimum, mean, and max and in some versions the standard deviation of the round trip time.
LAN Messenger
A LAN messenger is an instant messaging program designed for use within a single local area network (LAN). There are advantages using a LAN messenger over a normal instant messenger. The LAN messenger runs inside a company or private LAN, so only people who are inside the firewall (in the network) will have access to the system. Communication data does not leave the LAN and the system can also not be spammed from the outside.
Conclusion
Under this project we planned to make LAN monitoring process a bit easier by providing a tool called as the LAN monitor. A LAN monitor makes these tasks easier by providing tools to analyze the structure and traffic of all connected nodes in a LAN. A LAN monitor does several tasks that allow network mangers to configure and analyze network details like properly connected nodes, available network options, traffic analysis, site blocking etc. Most LANs connect workstations and personal computers. Each node (individual computer ) in a LAN has its own CPU with which it executes programs, but it also is able to access data and devices anywhere on the LAN. This means that many users can share expensive devices, such as laser printers, scanners, etc. as well as data. Users can also use the LAN to communicate with each other, by sending e-mail or engaging in chat sessions.
A LAN monitor is effective software for monitoring the local area network for weak points or failures. The LAN Monitor also displays real-time traffic statistics, including bytes sent and received transmission errors, and network connection load factors. It also provides facilities for team coordination on LAN in offices; for example, it provides the LAN messenger and file sender utilities for fast cooperation on projects. Other features of a LAN monitor include detection of open/ closed ports on a host, sniffing the packet data on its interfaces, etc. All of these tasks help the monitoring of LAN in fast and efficient manner either directly or indirectly. This is hence a boon to LAN administrators who seek for good network performance and LAN employees who seek to coordinate with team work.