ICMP编程实现，更有效地转发IP数据包，提高交付成功的机会。-ICMP programming to forward IP packets more effectively to improve the delivery of the chances of success

用于网络ip数据包的解析，并显示抓获的数据包，字段，报头等信息-Ip packets for network analysis, and display the captured packets, fields, header and information