Apple AirPort Networks manual Getting Started

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Note: When the features discussed in this document apply to the AirPort Extreme Base Station, AirPort Express, and Time Capsule, the devices are referred to collectively as Apple wireless devices.

With an AirPort Extreme Base Station or a Time Capsule, you can connect a USB hard disk so that everyone on the network can back up, store, and share files. Every Time Capsule includes an internal AirPort disk, so you don’t need to connect an external one. If you want, you can connect additional USB disks to the USB port on your Time Capsule. You can also connect a USB printer to the USB port on any Apple wireless device, so that everyone on the network can access the printer or hub.

All Apple wireless devices provide strong, wireless security. They offer a built-in firewall and support industry-standard encryption technologies. Yet the simple setup utility and powerful access controls make it easy for authorized users to connect to the AirPort network they create.

You can use an Apple wireless device to provide wireless Internet access and share a single Internet connection among several computers in the following ways:

ÂSet up the device to act as a router and provide Internet Protocol (IP) addresses to computers on the network using Dynamic Host Configuration Protocol (DHCP) and Network Address Translation (NAT). When the wireless device is connected to a DSL or cable modem that is connected to the Internet, it receives webpages and email content from the Internet through its Internet connection, and then sends the content to wireless-enabled computers, using the wireless network or using Ethernet if there are computers connected to the Ethernet ports.

ÂSet up the Apple wireless device to act as a bridge on an existing network that already has Internet access and a router providing IP addresses. The device passes IP addresses and the Internet connection to AirPort or wireless-enabled computers, or computers connected to the wireless device by Ethernet.

This document provides information about the latest AirPort Extreme Base Station, AirPort Express, and Time Capsule, and detailed information about designing 802.11n networks with AirPort Utility for computers using Mac OS X v10.5 or later, and Windows Vista or Windows XP with Service Pack 2. If you’re using previous versions of Mac OS X, or are setting up earlier versions of AirPort devices, you’ll find more information at www.apple.com/support/airport.

Chapter 1 Getting Started

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Contents Apple AirPort Networks Contents Getting Started Getting Started Getting Started Extending the Range of Your AirPort Network Printing with an Apple Wireless DeviceSharing Your Computer’s Internet Connection Getting Started To start Internet sharing on a computer using Windows NAT Firewall Security for AirPort Networks at HomeClosed Network Password Protection and Encryption Transmitter Power ControlMAC Address Access Control Security for AirPort Networks in Businesses and ClassroomsWi-Fi Protected Access WPA and WPA2 Radius SupportWPA and WPA2 Personal WPA and WPA2 Enterprise Configuring and Sharing Internet Access Setting Up the AirPort Extreme NetworkSetting Advanced Options Setting AirPort preferences Using AirPort UtilityTo set AirPort preferences To set up your wireless device manually If you don’t see your wireless device in the listSetting Up the AirPort Extreme Network If you can’t open the wireless device settingsAirPort Network Designs Wireless Device Settings Change the Device PasswordGive the Device a Name Other InformationWireless Network Settings Setting the Wireless ModeSet Device Options Naming the AirPort Extreme NetworkPassword-protect Your Network Choosing the Radio ModeChanging the Channel Setting Wireless Options Setting Additional Wireless Options Use the Wireless Options pane to set the followingSetting up a Guest Network Configuring and Sharing Internet AccessYou’re Using a DSL or Cable Modem How It Works What It Looks LikeWhat You Need for a DSL or Cable Modem Connection What to Do AirPort Network Designs AirPort Network Designs AirPort Network Designs AirPort Network Designs Setting Dhcp and NAT Options AirPort Network Designs Setting Up Client Computers Setting Dhcp Only OptionsTo configure TCP/IP on client computers using Mac OS X Next, choose Dhcp from the Configure IPv4 pop-up menu To configure TCP/IP on client computers using Windows To configure TCP/IP on client computersAirPort Network Designs You’re Using an Existing Ethernet Network What You Need for an Ethernet ConnectionWhat to Do AirPort Network Designs AirPort Extreme Ethernet WAN port Time Capsule Setting Advanced Options Setting Up Roaming To set up roamingExtending the Range of an 802.11n Network To extend the range of an 802.11n networkControlling the Range of Your AirPort Network To shorten the range of your AirPort networkUsing Wi-Fi Protected Access To help protect your network and wireless deviceKeeping Your Network Secure To set up a WPA or WPA2 Enterprise network To set up a WPA or WPA2 Personal networkSetting Up Access Control To set up the access control listUsing a Radius Server To set up authentication using a Radius serverAirPort Network Designs To set up inbound port mapping To set up logging To set up a default hostLogging To set up Back to My Mac on your wireless device Using Back to My Mac on your Wireless NetworkTo set the time automatically Setting up IPv6 To adjust IPv6 firewall settingsCustomizing the IPv6 firewall To manually set IPv6 optionsSharing and Securing USB Hard Disks on Your Network To share a hard disk on your networkConnecting a USB Printer to an Apple Wireless Device Using a Time Capsule in Your NetworkTo use a printer on your network To allow client access to your network Adding a Wireless Client to Your 802.11n NetworkTo change the name of your USB printer On a computer using Mac OS Solving ProblemsOn a computer using Windows AirPort Utility Help More Information About AirPortWorld Wide Web How Information Reaches Its Destination Packets and TrafficHardware Addresses IP AddressesRules for Sending Information Protocols Using the AirPort Extreme Base StationBase Station Interfaces Using the Time Capsule Using the AirPort ExpressTime Capsule Interfaces AirPort Express InterfacesApple Wireless Device Functions Items That Can Cause Interference with AirPort Glossary Glossary Glossary Glossary Glossary Glossary Glossary Glossary
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