In Listing 3 you can see the TCP header.

在清单3中，您可以看到TCP报头。

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TCP header, which includes information on the port, implied protocol, flags and sequencing Numbers.

TCP报头，它包含端口上的信息、隐含的协议、标记和顺序编号。

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When a TCP segment is received, the TCP router knows which port to pass it to by looking at the port number in the TCP header.

当接收到一个tcp段时，tcp路由器通过查看tcp报头中的端口号就知道向哪个端口传送包。

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