Click the Properties button in Windows 98 or the Resources tab in Windows 2000 or XP. Choose the Resources tab if you’re using Windows 98, as shown in Figure A-9.

Appendix B ✦ IP Addressing If you have another protocol installed, such as NetBEUI or IPXSPX, you should remove it before installing TCPIP. Although you can have two or more protocols installed, such a setup slows down your system and makes the network less efficient. Installing TCPIP When you install the protocol, it automatically binds to your network card. To install and con- figure TCPIP for use on the LAN, follow these steps: 1. Choose Start ➪ Settings ➪ Control Panel. The Control Panel opens. 2. Double-click the Network icon. The Network dialog box appears.

3. Click the Add button. The Select Network Component Type dialog box appears, as

shown in Figure B-3. Figure B-3: Add a network component.

4. In the list of network components to add, select Protocol and then click the Add but-

ton. The Select Network Protocol dialog box appears, as shown in Figure B-4. Figure B-4: Add a protocol. 5. In the Manufacturers list, select Microsoft. 6. In the Network Protocols list, select TCPIP. Click OK. Windows returns to the Network dialog box, as shown in Figure B-5. Don’t close the Network dialog box yet. Continue to the next set of steps. Appendixes When you install a network adapter card, Windows might install a dial-up adapter. A dial-up adapter is a device driver that is bound to the Client for Microsoft Networks and acts as an interface between the modem and your computer. You need the dial-up adapter if you plan to connect to another network over a phone line by using a modem. For more information about the dial-up adapter, see the section “Comprehending the dial-up adapter TCPIP Settings” later in this appendix. Figure B-5: TCPIP is installed. Configuring TCPIP You must configure the protocol before you can use it. To configure TCPIP, follow these steps:

1. Select the TCPIP protocol that is bound to your network card as opposed to the

TCPIP bound to the dial-up adapter. Click the Properties button. The TCPIP Properties dialog box appears, as shown in Figure B-6. 2. Select the option Specify an IP Address. 3. In the IP Address box, enter the address you’re using — for example, 172.16.1.1. 4. In the Subnet Mask box, enter the four-octet number for the subnet, such as 255.255.255.0. 5. Click OK to close the dialog box.

6. Click OK to close the Network dialog box. When Windows prompts you to restart your

computer, do so. When the computer restarts, the TCPIP is active. Make sure that you install TCPIP on all com- puters on the network. Use a unique IP address for each computer but the same subnet mask. Note