User manual APPLE AIRPORT NETWORKS FOR WINDOWS V4.2

[. . . ] AirPort Networks for Windows For Windows XP and Windows 2000 1 Contents Chapter 1 5 6 6 7 7 8 8 9 9 10 11 11 12 13 17 18 18 19 25 41 54 55 57 65 65 68 69 70 Getting Started How AirPort Works How Wireless Internet Access Is Provided Configuring AirPort Extreme Base Station and AirPort Express for Internet Access AirPort Setup Assistant AirPort Admin Utility Extending the Range of Your AirPort Network AirTunes Printing via an AirPort Extreme Base Station or AirPort Express Sharing Your Computer's Internet Connection AirPort Security Security for AirPort Networks at Home Security for AirPort Networks in Business and Education Wi-Fi Protected Access AirPort Network Designs Using the AirPort Setup Assistant Using AirPort Admin Utility Setting Up the AirPort Network Configuring and Sharing Internet Access Setting Advanced Options Solving Problems More Information About AirPort Using AirPort Express Behind the Scenes Basic Networking Using the AirPort Extreme Base Station Using AirPort Express Items That Can Cause Interference With AirPort Chapter 2 Chapter 3 Chapter 4 Chapter 5 3 1 Getting Started 1 With this version of the AirPort software you can set up and manage an AirPort network using Microsoft Windows, and wirelessly share a single Internet connection with multiple computers. Instead of using cables to create a network, AirPort uses wireless local area network (WLAN) technology to provide wireless communication between computers. Through a wireless network you can access the Internet, share files, play multiplayer games, and more. If you have an AirPort Express and use AirPort 4. 0 or later, you can play iTunes music through remote speakers using AirTunes. Using AirPort technology, you can: · Create a wireless network in your home or school using an AirPort Extreme Base Station or AirPort Express, then connect to the Internet and share the connection among several computers simultaneously. [. . . ] Important: If you are connecting to the Internet by Ethernet or PPPoE, only the Ethernet LAN port (G) is bridged. Enabling NAT lets you share a single Internet connection among several computers. Enabling DHCP lets the base station dynamically and automatically assign IP addresses to client computers, which simplifies each computer's TCP/IP configuration. Bridging allows devices and computers using Ethernet and computers using a wireless connection to communicate with one another. 4 If you want to adjust optional advanced settings, go to "Setting Advanced Options" on page 41. When the transfer is complete, the base station restarts and its new settings are active. Chapter 3 AirPort Network Designs 39 Setting Up Client Computers To set up client computers to connect to the wireless network, see "Setting Up Client Computers" on page 30. You're Using Base Stations Powered Over Ethernet on an Existing Network If your AirPort Extreme Base Station supports it, you can connect multiple base stations to 802. 3af-compliant Power Sourcing Equipment (PSE), and deliver both power and the network and Internet connection over the same cable. See the documentation that came with your base station to make sure the base station supports Power over Ethernet (PoE). If your base station supports PoE, the base station and the mounting bracket conform to UL Standard 2043 for placement in the air-handling space above suspended ceilings. Using PoE allows you to install a base station in places away from a standard electrical outlet. To use the base station in an air-handling space above suspended ceilings, you must connect the Ethernet WAN port to an 802. 3af-compliant PSE with a plenum-rated Ethernet cable. You cannot use the AC power adapter to power a base station installed in an air-handling space. Do not connect an external antenna to a base station mounted in an air-handling space. What It Looks Like AirPort Extreme Base Stations AC power outlet To Network 802. 3af-compliant Power Sourcing Equipment (PSE) Plenum-rated Ethernet cables 40 Chapter 3 AirPort Network Designs How It Works · The AirPort Extreme Base Station uses your Ethernet network to communicate with the Internet and receives power through the Ethernet WAN port ( ). · AirPort clients access the Internet and the Ethernet network through the AirPort Extreme Base Station. Note: An AirPort Extreme Base Station that supports PoE is set up by default to act as a bridge, and the "Share a single IP address (using DHCP & NAT)" option is not selected. Use the Network pane of AirPort Admin Utility if you want to select the "Share a single IP address (using DHCP & NAT)" option. What You Need for a Power Over Ethernet (PoE) Connection Components AirPort Extreme Base Station or multiple base stations that support PoE 802. 3af-compliant Power Sourcing Equipment (PSE) Plenum-rated Ethernet cables If you are mounting the base station in the air-handling space above a suspended ceiling, you need to use plenum-rated Ethernet cables. Check Comments What to Do Follow the instructions in the previous section, "You're Using an Existing Ethernet Network" on page 32, to set up the AirPort network. Setting Advanced Options Use AirPort Admin Utility to adjust optional advanced base station settings. Using the AirPort Extreme Base Station or AirPort Express as a Bridge You can turn off the base station's Internet sharing features (which provide IP addresses to AirPort computers using DHCP or NAT) to allow bridging between the network's wireless and wired computers. With bridging turned on, AirPort computers have access to all services on the Ethernet network, and the base station does not provide Internet sharing services. Using the base station as a bridge can be a way to address incompatibilities between the base station's Internet sharing features and your ISP's connection method. To use the base station as a bridge, all AirPort and Ethernet computers need to have IP addresses set manually and use the same subnet mask. Chapter 3 AirPort Network Designs 41 To set up the base station as a bridge: 1 Open AirPort Admin Utility and open your base station's configuration. 3 Deselect the "Distribute IP addresses" checkbox. Connecting Additional Base Stations to Your AirPort Network You can connect additional AirPort Extreme or AirPort Express Base Stations to extend the range of your wireless network. [. . . ] When the response comes back from the Internet, the NAT router forwards the packet to the appropriate computer. IP subnet An IP subnet is a local network as defined by IP network numbers. Connecting to a subnet involves connecting to the appropriate hardware network and configuring IP for that network. Chapter 5 Behind the Scenes 67 Using the AirPort Extreme Base Station This section describes the different network interfaces of the AirPort Extreme Base Station and describes the functions the base station can provide. Base Station Interfaces To configure the AirPort Extreme Base Station, you configure how its networking interfaces will be used. The AirPort Extreme Base Station has five hardware networking interfaces: · AirPort interface The AirPort interface creates an AirPort network for AirPortequipped computers to join. [. . . ]