cisco 640 802 ccna portable command guide 2008 phần 9

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Wireless Access Point Configuration: Linksys 300N Access Point 167 steps, you can click Review instructions from the screen in Figure 15-10 to start over. If not, click Next to continue. The Setup Wizard checks your computer settings, so you will see a timer bar appear over the top of the wizard, as shown in Figure 15-11. Figure 15-15 Check the Router’s Status Figure 15-16 Checking Your Computer’s Settings 168 Wireless Access Point Configuration: Linksys 300N Access Point Next, you need to set up the different parameters of the router to connect different devices to it. The first parameter is DHCP. The screen in Figure 15-12 shows a few different options from which to select. If you are unsure about what to select, do not select anything. This example assumes that you are plugged into a cable modem, so you leave this setting at the default, Cable (DHCP). Figure 15-17 Configure Cable or DHCP Settings The next step is to set an administrative password. Do not leave the password at the default setting. If you want to have this password saved on the local computer, select the Remember my password on this computer check box, as shown on the screen in Figure 15-13. After you set and confirm the password, click Next. The router checks settings and then progresses to the next screen in the wizard. Figure 15-14 shows the beginning of the wireless setup on the router. Here you are asked for the name of your wireless network and what channel you want to use. The name will be your service set identification (SSID), and this name must be used by any device wanting to connect to this AP. To ensure the least amount of interference from other wireless installations, limit your choices of channel number to 1, 6, or 11, because these channels do not overlap with each other. Wireless Access Point Configuration: Linksys 300N Access Point Figure 15-18 Set the Router’s Administrative Password Figure 15-19 Wireless Settings 169 170 Wireless Access Point Configuration: Linksys 300N Access Point The next part of the wireless setup is to choose security settings. This part is optional. Figure 15-15 shows that PSK2 Personal has been selected, as opposed to not using any settings. PSK2 stands for Pre-Shared Key 2. If you choose PSK2 Personal, you must enter a shared key of between 8 and 63 characters in length. In the example in Figure 15-15, the shared key has letters, numbers, and keyboard characters—in this case, two exclamation points are included. Figure 15-20 Configure Wireless Security Settings (Optional) After you finish entering the wireless configuration, you will see the confirmation screen shown in Figure 15-16. If you want, you can save these settings to a text file by clicking the Save Settings button. After saving a copy of your settings, click Yes to continue. This is the end of the Setup Wizard. You are presented with the screen in Figure 15-17, from which you can install Norton Internet Security on your computer if desired. If you choose not to install this, click Finish to exit the wizard; you will see the Congratulations screen shown in Figure 15-18. Wireless Access Point Configuration: Linksys 300N Access Point Figure 15-21 Confirm New Settings Figure 15-22 Option to Install Norton Internet Security 171 172 Wireless Access Point Configuration: Linksys 300N Access Point Figure 15-23 End of Wizard After you have completed the Setup Wizard, you can use your Internet browser to connect to the AP for management of the device. The default IP address is 192.168.1.1. Enter this address in the address bar of your browser, and you will be prompted for a username and password—the ones you set previously. Figure 15-19 shows the username/password challenge window, and Figure 15-20 shows the main screen of the Linksys web-based management utility. Figure 15-21 shows the menu bar present in the web-based management utility. Selecting any one of the main items—Setup, Wireless, Security, Access Restrictions, Applications & Gaming, Administration, Status—will take you to a new screen with submenus for additional management tasks. In Figure 15-21, the main button, Setup, has been selected, and there are four screens that can be chosen: Basic Setup, DDNS, MAC Address Clone, or Advanced Routing. Wireless Access Point Configuration: Linksys 300N Access Point Figure 15-24 Username/Password Challenge Figure 15-25 Main Screen of Web-Based Management Utility 173 174 Wireless Client Configuration: Linksys Wireless-N Notebook Adapter Figure 15-26 Web-Based Management Utility Menu Bar Wireless Client Configuration: Linksys Wireless-N Notebook Adapter NOTE: The wireless client card used in this chapter is the Linksys Wireless-N Notebook Adapter. If you are using a different network adapter, the screen captures shown here might differ. The operating system used in this chapter is Windows XP Professional, with Service Pack 2 installed. If you are running Windows 2000, refer to the Linksys Quick Start Handout that came with your adapter card for instructions on installing the adapter card. It is important to use the most up-to-date firmware or drivers. This is especially true for the 300N client card because the 802.11n technology is still in draft stage. Therefore, check your client card’s website for available updates. In the case of Linksys, its website for updates is http://www.linksys.com/download. Figure 15-22 shows the initial screen of the Setup Wizard, which runs automatically when you use the installation CD provided with the client card. Run the Setup Wizard on the computer before you plug in your client card to the PC. Figure 15-27 GUI Setup Wizard Wireless Client Configuration: Linksys Wireless-N Notebook Adapter 175 Figure 15-23 shows the license agreement for the device. After you have read the agreement, click on Next to continue, or Cancel to exit the setup program. Figure 15-28 License Agreement The Setup Wizard then installs some files onto your computer. A window might appear saying that this software has not passed Windows Logo Testing, as shown in Figure 15-24. Click Continue Anyway to continue with the setup. Figure 15-29 Software Installation Figure 15-25 shows the next screen of the Setup Wizard, in which you are asked to insert the adapter into either the PCMCIA or CardBus slot of your PC. Insert the card, and then click Next. 176 Wireless Client Configuration: Linksys Wireless-N Notebook Adapter Figure 15-30 Connecting the Adapter A Found New Hardware Wizard pop-up window will appear, as shown in Figure 15-26. Select Yes, this time only to the question “Can Windows connect to Windows Update to search for software?” Then click Next to continue. Figure 15-31 Found New Hardware Wizard Figure 15-27 is the second screen of the Found New Hardware Wizard. Because you want to install the software automatically for this adapter, you only have to click the Next button, because that option is already highlighted in the wizard.
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