(Now, in the process of front-line fault resolution, we often use sniffer software to analyze data packets in the network, so as to provide more convincing data for fault resolution and relevant departments (such as R & D). It should be said that the sniffer packet text does play a great role in solving the problem. However, in many cases, the sniffer packets provided by some people are confused with all kinds of data. It takes a lot of effort to understand the packet. In addition, in many cases, the corresponding network topology diagram of packet capturing, source port, destination port, IP address, etc. are not given, This is not conducive to the analysis and positioning of relevant personnel. Therefore, I will make a case in this regard for your reference. I hope you can provide more valuable data to relevant personnel.)