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README-en.md edited online with Bitbucket

Jose R Ortiz Ubarri vor 8 Jahren
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@@ -42,7 +42,7 @@ Before coming to the laboratory session you should have:
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 ##Communication between Computers
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-Computers communicate with each other through the *Internet Protocol* (IP).  When a computer sends information to another computer it is sent via *Internet Packets* that contain the Internet address of the sender computer (*source address*), and the Internet address of the receiving computer (*destination address*). Internet addresses are used to guide information from one computer to another, but, once a packet arrives to its destination, who is supposed to receive the information? Which application should receive the information?
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+Computers communicate with each other through the *Internet Protocol* (IP).  When a computer sends information to another computer it is sent via *Internet Packets* that contain the Internet address of the sender computer (*source address*), and the Internet address of the receiving computer (*destination address*), which is the Internet adrdress of the computer that should receive the message. Internet addresses are used to guide information from one computer to another, but, once a packet arrives to its destination, who is supposed to receive the information? Which application should receive the information?
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 The internet packets should also specify the application that sends the information and the application that should receive it. We can think that the Internet address is the mailing address of a house, and the applications that send and receive the information are the people that send and receive the correspondence. To send a letter by mail, one must specify to whom the letter is being sent. This corresponds to specifying the application that receives the information. To identify the source application and the destination application, the Internet protocol uses what is known as *port numbers*. Looking at the information on the packet, the addresses and ports of the source and destination can be identified.
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