如何使用套接字ping IP并通过它发送数据？ [英] How to ping an IP using a socket and send data through it?
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问题描述
如何使用套接字程序ping IP地址并通过它发送数据？
How can I ping an IP address using a socket program and send data through it?
推荐答案
你做不到ping in Java - ping工作在ICMP级别，它在IP之上工作，而Java提供对UDP（位于IP之上）和TCP（再次在IP之上）的支持。它基本上是一个不同的（更高级别）协议，您需要编写自己的（本机）库才能访问IP堆栈。
You can't do ping in Java -- ping works at ICMP level which works on top of IP, whereas Java offers support for UDP (which sits on top of IP) and TCP (again on top of IP). It's basically a different (higher level) protocol for which you will need your own (native) library written in order to gain access to the IP stack.
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