Check inside the computer case to make sure that the cables are not crimped, torn,

Appendix B ✦ IP Addressing You install TCPIP to use with the dial-up networking feature. This installation enables you to connect to the Internet by means of a modem. The TCPIP communicates with Web servers on the Internet. If you install TCPIP on your network, you use it to connect to the other com- puters on your LAN. One installation has nothing to do with the other. For more information, see the section “Installing and Configuring TCPIP” later in this appendix. Using TCPIP to connect to the Internet provides you with all the Internet features and advan- tages, including e-mail, Web browsers, and file transfer. Also, TCPIP includes various pro- grams which are also protocols that you can use to access information on the Internet. If you have special needs for FTP or Telnet, for example, TCPIP provides those programs for you to use. If you plan to expand your network to the Internet someday, your knowledge and use of TCPIP will help you tremendously. Knowing how to configure TCPIP will make it easier for you to transfer your Web sites and pages to the Web and to configure clients and servers for the Internet. Having TCPIP in place means less configuring when you move to the Internet. Dial-Up Networking You also can use TCPIP to connect to your home or work computer. If you’re on the road, for example, and want to call your home network to retrieve some information or your schedule, you can use Windows dial-up networking to accomplish this. You use TCPIP in Terminal Services as well. Terminal Services is a method of communication between a remote computer and a server using Windows 2000 Server. For more information, see Appendix C. If your work network uses TCPIP, you can call in to that network from home or while you’re on the road. Additionally, if your office network includes DHCP server, calling from a remote computer becomes even easier. The DHCP server configures your computer so that all you need to do is dial and connect. Creating your own TCPIP network When setting up your own TCPIP network, you need to choose IP addresses for your com- puters. Remember, each computer on the network needs a unique IP address. You also need to set a specific subnet mask for your network to use. Several IP addresses are reserved for private use. Following are the three blocks reserved for IP addresses: 10.0.0.0 to 10.255.255.255 172.16.0.0 to 172.31.255.255 192.168.0.0 to 192.168.255.255 For your home network, for example, you could use the following IP addresses for five com- puters on the network: 172.16.0.1 172.16.0.2 172.16.0.3 172.16.0.4 172.16.0.5 Note