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Chapter 8. Troubleshooting Your Network ... > TCP/IP Configuration and Troubleshoo...

TCP/IP Configuration and Troubleshooting

TCP/IP, the Transport Control Protocol/Internet Protocol (often referred to in Windows as simply Internet Protocol), can be called the language of the Internet. It doesn't matter what type of computer you have; any computer or other device on the Internet needs to use TCP/IP to share information with the rest of the world's largest network.

Unfortunately, the flip side of the power of TCP/IP is that it can be very hard to configure. Every computer or other device on the Internet needs an IP address; computers and devices that are directly connected to the Internet need a public address unique to that machine. However, most Internet users don't connect directly to the Internet, but connect to an intermediate device or service that provides an IP address as needed. By default, Windows installs TCP/IP to receive an IP address from a Dynamic Host Control Protocol (DHCP) server, a feature of most ISPs as well as broadband modems, routers, and Internet sharing programs. A DHCP server automatically assigns an IP address when your computer makes the connection to the Internet.


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