Man, finding the information for what a network packet analyzer is sure is a pain. Browsing google, all I'm getting are different types of analyzers there are to download from different companies. All these choices but what am I looking for? What do I need them to do?
A network packet analyzer analyzes and decodes network protocol headers, packets, and trailers. Packets are groups of binary information that only computers can read. Packets also include a series of instuctions for computers to follow. In the wrong hands--such as hackers-- certain packet analyzers could become devasting to other users.
The purpose of these are to monitor network traffic, analyze packets, watch network resource utilization, conduct forensic analysis of network security breaches and troubleshoot network problems. Good packet analyzers consist of two parts. The first part is a Monitoring Probe, a device deployed at various point of the network; and the second part, a Consol, a software package installed in the Network Operation Center (NOC) to centrally monitor all Probes.
http://www.javvin.com/protocolanalysis.html
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