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Char Sz RecvBuff

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15.2 主机探测与路由追踪 - lyshark - 博客园

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By WSADATA wsaData, Dword Dw TimeOut, Char Sz RecvBuff, Bool IcmpSendEcho
| cnblogs.com
Ping 使用 Internet 控制消息协议（ICMP）来测试主机之间的连接。当用户发送一个 ping 请求时，则对应的发送一个 ICMP Echo 请求消息到目标主机，并等待目标主机回复一个 ICMP Echo 回应消息。如果目标主机接收到请求并且网络连接正常，则会返回一个回应消息，表示主机之间的网络连接是正常的。如果目标主机没有收到请求消息或网络连接不正常，则不会有回应消息返回。 Ping 工作的步骤如下： Ping发送一个ICMP Echo请求消息到目标主机。 目标主机接收到请求消息后，检查消息中的目标IP地址是否正确，并回复一个ICMP Echo回应消息表示收到请求。 Ping接收到回应消息后，并计算从发送到接收的时延（即往返时间 RTT）和丢包率等统计信息，然后输出到命令行上。 Ping不断进行第1到第3步的操作，直到达到指定的停止条件（如发送一定数量的请求或持续一定的时间等）为止。 Ping的实现依赖于ICMP协议，Internet控制消息协议（Internet Control Message Protocol，简称...
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