1 Known parameters: the destination node IP address or host name 2 Design requirements: through raw socket programming, simulation Ping command, to achieve its basic functions, namely Enter an IP address or a range of IP addresses, each of which were tested an IP address corresponding to the host reachability and return to time-consuming, survival time and other parameters, and statistical successfully sent and Ping loopback packets. 2.1 Initialize Windows Sockets network environment 2.2 parse command line arguments, the destination socket address structure 2.3 Defining IP, ICMP packets 2.4 ICMP error packets received and parsed. 3 procedures used to achieve the main classes in the Java network packet InetAddress.

1.cpp

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