Introduction - If you have any usage issues, please Google them yourself
Protocol analysis gas program: includes what functions, data acquisition, Ethernet network data frame header parsing all of the information, to achieve the frame based on MAC address and type field of the head packet filtering, parsing IP packet header information, to achieve based on IP address and IP are protocols of data filtering on ICMP parsing, parsing TCP/UCP header information, to port data packet filtering, application layer implementation of HTTP protocol header