Apple AirPort Networks manual What It Looks Like, How It Works

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What It Looks Like

to Ethernet port

2.4 or 5 GHz

Time Capsule

< Ethernet WAN port

DSL or cable modem

to Internet

How It Works

ÂThe Apple wireless device (in this example, a Time Capsule) connects to the Internet through its Internet WAN (<) connection to your DSL or cable modem.

ÂComputers using AirPort or computers connected to the wireless device’s Ethernet LAN port (G) connect to the Internet through the device.

ÂThe device is set up to use a single, public IP address to connect to the Internet, and uses DHCP and NAT to share the Internet connection with computers on the network using private IP addresses.

ÂAirPort computers and Ethernet computers communicate with one another through the wireless device.

Important: Connect Ethernet computers that are not connected to the Internet to the device’s LAN port (G) only. Since the device can provide network services, you must set it up carefully to avoid interfering with other services on your Ethernet network.

What You Need for a DSL or Cable Modem Connection

Components

Check

Comments

Internet account with DSL or cable modem service provider

Does your service provider use a static IP or DHCP configuration?

You can get this information from your service provider or the Network preferences pane on the computer you use to access the Internet through this service provider.

Apple wireless device (an AirPort Extreme Base Station, an AirPort Express, or a Time Capsule)

Place the device near your DSL or cable modem.

Chapter 3 AirPort Network Designs

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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 Transmitter Power Control Password Protection and EncryptionMAC Address Access Control Security for AirPort Networks in Businesses and ClassroomsRadius Support Wi-Fi Protected Access WPA and WPA2WPA 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 If you don’t see your wireless device in the list To set up your wireless device manuallyIf you can’t open the wireless device settings Setting Up the AirPort Extreme NetworkAirPort Network Designs Change the Device Password Wireless Device SettingsGive the Device a Name Other InformationSetting the Wireless Mode Wireless Network SettingsSet Device Options Naming the AirPort Extreme NetworkPassword-protect Your Network Choosing the Radio ModeChanging the Channel Setting Wireless Options Use the Wireless Options pane to set the following Setting Additional Wireless OptionsSetting 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 To configure TCP/IP on client computers using WindowsAirPort Network Designs What You Need for an Ethernet Connection You’re Using an Existing Ethernet NetworkWhat to Do AirPort Network Designs AirPort Extreme Ethernet WAN port Time Capsule Setting Advanced Options To set up roaming Setting Up RoamingTo extend the range of an 802.11n network Extending the Range of an 802.11n NetworkTo shorten the range of your AirPort network Controlling 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 Personal network To set up a WPA or WPA2 Enterprise networkTo set up the access control list Setting Up Access ControlTo set up authentication using a Radius server 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 To adjust IPv6 firewall settings Setting up IPv6Customizing the IPv6 firewall To manually set IPv6 optionsTo share a hard disk on your network Sharing and Securing USB Hard Disks 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 Packets and Traffic How Information Reaches Its DestinationHardware Addresses IP AddressesRules for Sending Information Protocols Using the AirPort Extreme Base StationBase Station Interfaces Using the AirPort Express Using the Time CapsuleTime Capsule Interfaces AirPort Express InterfacesApple Wireless Device Functions Items That Can Cause Interference with AirPort Glossary Glossary Glossary Glossary Glossary Glossary Glossary Glossary