Abstract:

In order to better monitor and verify the network traffic and to deal with problems in the existing network sniffers, we designed a new simple and practical network sniffer based on the detailed analysis of the fundamental principles of software network sniffers. And it is implemented by programming in the Windows XP by making use of Visual C++ 60. Finally, a network sniffer designed was analyzed simply compared with the previous ones. Results of the analysis showed that the new network sniffer designed is fully equipped with data capture, analysis of the data packets and other basic functions. And it is simple and practical, so it has better application value.

Key words: network sniffer, data capture, analysis of the data packet, simple and practical