In this paper, the authors based on the Literature survey. Packets are units of data traveling in computer networks and they carry all-important information from source to destination. They also provide the user with network activity and its behavioral description also including the information regarding network traffic. They are many tools available to analyze the network traffic, packet etc. in this paper, they discuss an architecture of packet analyzer and implementation using network analyzer Wireshark tool formally known as \"Ethereal\" a free packet sniffer application that has tools to capture, view and analyze packets.