Figure 3-1 WLAN Act LAN This LAN (Local Area Network) port connects to Ethernet network devices, such as a hub, switch, or router. WLAN Link Power The Power port is where you will connect the power adapter. The Power Switch is where you will turn the Access Point on and off. There are two ways to Reset the Access Points factory defaults. Either press the Reset Button, for approximately ten seconds, or restore the defaults from the password tab in the Access Points Web-Based Utility.

Power Switch

LAN Act/Link Green. The LANs LINK LED serves two purposes. If the LED is continuously lit, the Access Point is successfully connected to a device through the LAN port. If the LED is flickering, it is an indication of any network activity. LAN Full/Col Green. The LANs Full/Col LED also serves two purposes. When this LED is continuously lit, the connection made through the corresponding port is running in Full Duplex mode. A flickering LED indicates that the connection is experiencing collisions. Infrequent collisions are normal. If this LED blinks too often, there may be a problem with your connection. Refer to the Troubleshooting Appendix if you think there is a problem. LAN 100 Orange. The LANs 100 LED indicates when a successful 100Mbps connection is made through the LAN port.

Reset Button

Important: Resetting the Access Point will erase all of your settings (WEP Encryption, Wireless and LAN settings, etc.) and replace them with the factory defaults. Do not reset the Access Point if you want to retain these settings
Chapter 4: Connecting the DualBand Wireless Access Point
1. Locate an optimum location for the Access Point. The best place for the Access Point is usually at the center of your wireless network, with line of sight to all of your mobile stations. 2. Fix the direction of the antenna. Try to place it in a position which can best cover your wireless network. Normally, the higher you place the antenna, the better the performance will be. The antennas position enhances the receiving sensitivity. 3. Connect a standard Ethernet network cable to the Access Point. Then, connect the other end of the Ethernet cable to a switch or hub. The Access Point will then be connected to your 10/100 Network. 4. Connect the AC Power Adapter to the Access Points Power Socket. Only use the power adapter supplied with the Access Point. Use of a different adapter may result in product damage. Now that the hardware installation is complete, proceed to Chapter 5: Setting Up the Dual-Band Wireless Access Point for directions on how to set up the Access Point. Note: In order for all other wireless devices to communicate with the Access Point, those devices must be operating in the Infrastructure Mode. If any wireless devices are configured in the Ad Hoc Mode, they will not be recognized by the Access Point.

Chapter 5: Setting Up the DualBand Wireless Access Point
Have You: Connected the Access Point to a hub, switch or router on your wired network as shown in Chapter 4: Connecting the Dual-Band Wireless Access Point? The Access Point can only be set up through your wired network. Now that youve connected the Access Point to your wired network, you are ready to begin setting it up. This Setup Wizard will take you through all the steps necessary to configure the Access Point. Note: While the Access Point has been designed to work correctly right out of the box, setting it up on a wireless computer will require you to use the Linksys default settings. These settings can then be changed with the Setup Wizard or Web-based Browser Utility. 1. Insert the Setup Wizard CD into your PCs CD-ROM drive. Your PC must be on your wired network to set up the Access Point. 2. The screen in Figure 5-1 should appear on your monitor. If it does not, this means the autorun is not functioning. Start the Setup Wizard manually by clicking the Start button, selecting Run, and typing d:\setup.exe (where D is your PCs CD-ROM drive). Click the Setup button to continue this Setup Wizard. Clicking the User Guide button opened this User Guide. To access the Linksys web site on an active Internet connection, click the Linksys Web button or to exit this Setup Wizard, click the Exit button.
4. The next screen to appear, shown in Figure 5-3, will display a list of access points on your network along with the status information for each access point. If this is the only access point on your network, it will be the only one displayed. If there are more than one displayed, select the Access Point by clicking on it and click the Yes button to continue or No to exit the Setup Wizard.
Figure 5-1 3. The following screen, shown in Figure 5-2, displays how the Access Point is configured in this Setup Wizard. Optimally, you should perform this setup through a PC on your wired network. Click the Next button to continue or Exit to exit the Setup Wizard. 5. You will be asked to sign onto the Access Point youve selected, as shown in Figure 5-4. Enter the Password youve assigned. If none has been assigned, enter the default password: admin. Then, click the OK button. (This password can be changed from the Web-based Utilitys Password tab.)

Figure 5-3

Figure 5-4
6. As shown in Figure 5-5, the IP Settings screen will appear next. Enter an IP Address, Subnet Mask, and enter a unique access point name for the Access Point appropriate to your network. Then, click the Next button to continue or Back to return to the previous page. IP Address. This IP address must be unique to your network. (The default IP address is 192.168.1.250.) Figure 5-2

Figure 5-5 Subnet Mask. The Access Points Subnet Mask must be the same as your Ethernet network. Access Point Name. Assign a name to the Access Point. Unique, memorable names are helpful, especially if you are employing multiple access points on the same network. 7. As shown in Figure 5-6, the Basic Settings screen for your 5 GHz/802.11a wireless products will appear. Enter your wireless networks SSID and select the channel at which the network broadcasts its wireless signal. Then, click the Next button to continue or Back to return to the previous page. SSID. The SSID is the unique name shared among all points in a wireless network. The SSID must be identical for all points in the wireless network. It is case sensitive and must not exceed 32 characters, which may be any keyboard character. Make sure this setting is the same for all points in your wireless network. Channel. Select the appropriate channel from the list provided to correspond with your network settings, between 36 and 64. All points in your wireless network must use the same channel in order to function correctly. 8. The Security Settings screen (Figure 5-7) for your 5 GHz/802.11a wireless products will appear next. From this screen, you will set the Wired Equivalent Privacy (WEP) encryption, 64-bit/128-bit/152-bit, for your wireless network. Select a WEP configuration method and a WEP key.
Figure 5-6 The WEP key can consist of the letters A through F and the numbers 0 through 9 and should be 10 characters in length for 64-bit encryption, 26 characters in length for 128-bit encryption, or 32 characters in length for 152-bit encryption. All points in your wireless network must use the same WEP key to utilize WEP encryption. Then, click the Next button to continue or Back to return to the previous page.

Figure 5-7

9. As shown in Figure 5-8, the Basic Settings screen for your 2.4 GHz/802.11b wireless products will appear. Enter your wireless networks SSID and select the channel at which the network broadcasts its wireless signal. Then, click the Next button to continue or Back to return to the previous page. SSID. The SSID is the unique name shared among all points in a wireless network. The SSID must be identical for all points in the wireless network. It is case sensitive and must not exceed 32 characters, which may be any keyboard character. Make sure this setting is the same for all points in your wireless network. Channel. Select the appropriate channel from the list provided to correspond with your network settings, between 1 and 11 (in North America). All points in your wireless network must use the same channel in order to function correctly.

10. The Security Settings screen (Figure 5-9) for your 2.4 GHz/802.11b wireless products will appear next. From this screen, you will set the Wired Equivalent Privacy (WEP) encryption, 64-bit/128-bit, for your wireless network. Select a WEP configuration method and a WEP passphrase. WEP (Disable/64-bit WEP/128-bit WEP). In order to utilize WEP encryption, select the WEP setting from the pull-down menu. If you do not wish to utilize WEP encryption, make sure Disable is selected. Passphrase. This is a text string with a maximum of 16 alphanumeric characters used for generating a WEP Key. Type the passphrase here. This passphrase may not work with non-Linksys products due to possible incompatibility with other vendors passphrase generators. If youd rather not use a passphrase and would rather enter the WEP Key manually, click the Next button. Click the Next button to continue or Back to return to the previous page.
Figure 5-8 Figure 5-9 Note: WEP encryption should be used whenever communicating over a wireless network. Wireless transmissions, by their very nature, are unprotected and WEP encryption helps to close this hole in security and make your wireless network safer to use. Note: The Access Points passphrase function when mixing products from other manufacturers into your wireless network. Linksys products should always be used for optimum functionality. If another companys wireless product is used, however, the WEP key should be set manually.

Instant Wireless Series

11. The following Security screen, shown in Figure 5-7, will allow you to enter your WEP key. Each point in your wireless network must use the same WEP key for the network to function properly. Verify that the appropriate key is entered and click the Next button to continue or Back to return to the previous page. The WEP key can consist of the letters A through F and the numbers 0 through 9 and should be 10 characters in length for 64-bit encryption or 26 characters in length for 128-bit encryption. All points in your wireless network must use the same WEP key to utilize WEP encryption.
Figure 5-11 13. At this point, the configuration performed with the Setup Wizard is complete, as shown in Figure 5-12. To configure any other Access Points in your network, you can run this Setup Wizard again. Click the Exit button to exit the Setup Wizard.
Figure 5-10 12. You should now review the settings youve chosen, as shown in Figure 511. If these settings are correct, click the Yes button to save these settings. If you wish to change any of the settings, click the No button. You will exit the Setup Wizard and can start it again to revise your settings.

Figure 5-12

Static IP Address. This IP address must be unique to your network. (The default IP address is 192.168.1.250. As this is a private IP address, there is no need to purchase a separate IP address from your service provider.) Verify the address and click the Apply button to save changes. Subnet Mask. The Access Points Subnet Mask (or IP Mask) must be the same as your Ethernet (wired) network. Verify this is correct and click the Apply button to set it.

Chapter 6: Configuring the DualBand Wireless Access Point
Note: The Access Point is designed to function properly after using the Setup Wizard. This chapter is provided solely for those who wish to perform more advanced configuration or monitoring. The Access Point has been designed to be functional right out of the box, with the default settings in the Setup Wizard. However, if youd like to change these settings, the Access Point can be configured through your web browser with the Web-Based Utility. This chapter explains how to configure the Access Point in this manner. Open your web browser and type the IP Address you entered in the Setup Wizard. (The default IP address is 192.168.1.250.) (Should you need to learn what IP Address the Access Point presently uses, run the Setup Wizard again. It will scan the Access Point and give you its IP Address.) Press the Enter key and the following screen, shown in Figure 6-1, will appear. Leave the User Name field blank. The first time you open the Web-Based Utility, use the default password admin. You can set a new password from the Password tab. The Setup Tab The first screen that appears, shown in Figure 6-2, is the Setup tab. This allows you to change the Access Points general settings. Change these settings as described here and click the Apply button to apply your changes or Cancel to cancel your changes. If you require online help, click the Help button. Firmware. This will display the Access Points current firmware version. Firmware can be upgraded from the Help tab. Access Point Name. You may assign any name to the Access Point. Unique, memorable names are helpful, especially if you are employing multiple access points on the same network. Verify this is the name you wish to use and click the Apply button to set it.

Figure 6-1

Figure 6-2 The following entries are for both 5GHz/802.11a and 2.4GHz/802.11b: SSID. The SSID is the unique name shared among all points in a wireless network. The SSID must be identical for all points in the wireless network. It is case sensitive and must not exceed 32 alphanumeric characters, which may be any keyboard character. Make sure this setting is the same for all points in your wireless network.

Channel. Select the appropriate channel from the list provided to correspond with your network settings. This should be between 1 and 11 (in North America) for 2.4GHz/802.11b devices and 36 and 64 (in North America) for 5GHz/802.11a devices. All points in your wireless network must use the same channel in order to function correctly. WEP. The WEP Encryption method is Disabled by default. To enable WEP, click the WEP Key Setting button. Click the Apply button to apply your changes or Cancel to cancel your changes. If you require online help, click the Help button. SETTING WEP ENCRYPTION: Setting WEP Encryption through the Web-based Browser Utility is done by clicking the WEP Key Setting button on the Setup Screen as shown in Figure 6-2. This will open the WEP Key Setting screen. This screen is shown in Figure 63 for 5GHz/802.11a or Figure 6-4 for 2.4GHz/802.11b. Select the WEP encryption for the type(s) of wireless technology you are using. From this screen, you can select the type of WEP encryption to use as well as set the WEP Key for that encryption. Important: Always remember that each point in your wireless network MUST use the same WEP Encryption method and encryption key or your wireless network will not function properly.
Figure 6-4 From the pull-down menu, select the type of WEP encryption you wish to use. If you are using 5GHz/802.11a wireless technology, you will need to enter the key manually. If you are using 2.4GHz/802.11b wireless technology and wish to use a WEP Passphrase, it can be a maximum of 16 alphanumeric characters. This passphrase may not work with non-Linksys products due to possible incompatibility with other vendors passphrase generators. The WEP Key can be generated using your Passphrase or you can enter it manually. Type that here. The WEP key must consist of the letters A through F and the numbers 0 through 9 and should be 10 characters in length for 64-bit encryption or 26 characters in length for 128-bit encryption. (When using 5GHz/802.11a wireless technology, 152-bit encryption is also available. The WEP key under this setting should be 32 characters in length.) All points in your wireless network must use the same WEP key to utilize WEP encryption. Once the Passphrase is entered, click the Generate key to generate a WEP key. Click the Apply button to apply your changes and return to the Setup tab or Cancel to cancel your changes. To clear any of the information youve typed but not yet applied, click the Clear button.

Figure 6-3

The Password Tab

The Status Tab

Figure 6-7 The Password tab, shown in Figure 6-7, allows you to change the Access Points password and restore factory defaults. Changing the sign-on password for the Access Point is as easy as typing the password into the AP Password field. Then, type it again into the second field to confirm. To restore the Access Points factory default settings, click the Yes button beside Restore Factory Defaults. Click the Apply button to apply your changes or Cancel to cancel your changes. If you require online help, click the Help button. Figure 6-8 The Status tab, shown in Figure 6-8, will display current information on the Access Point, its settings and performance. Firmware Version. This displays the current version of the Access Points firmware. Firmware should only be upgraded if you experience problems with the Access Point and can be upgraded from the Help tab. IP Address. This IP address is the unique address to your network. Subnet Mask. The Access Points Subnet Mask, which is the same as your Ethernet network. SSID. The SSID is the unique name shared among all points in a wireless network. Encryption Function. The encryption method you chose in the Setup Wizard or changed from the Setup Tab of this Web-based Utility is displayed here. Channel. This is the channel at which your wireless network broadcasts. All points in your wireless network must use the same channel in order to function correctly.

Figure 6-12 Fragmentation Length. This specifies the maximum size a data packet will be before splitting and creating a new packet and should remain at its default setting of 2,346. A smaller setting means smaller packets, which will create more packets for each transmission. If you have decreased this value and experience high packet error rates, you can increase it again, but it will likely decrease overall network performance. Only minor modifications of this value are recommended. Data Beacon Rate. (5GHz/802.11a only) This value, between 1 and 16384, indicates the interval of the Delivery Traffic Indication Message. A Data Beacon Rate field is a countdown field informing clients of the next window for listening to broadcast and multicast messages. When the Access Point has buffered broadcast or multicast messages for associated clients, it sends the next message with a rate value. Access Point Clients hear the beacons and awaken to receive the broadcast and multicast messages.
Turbo Mode. (5GHz/802.11a only) Click the radio button beside Enable to increase the speed of your wireless transmissions to 72 Mbps, keeping in mind that the Access Points range diminishes in Turbo Mode. If you do not wish to utilize Turbo Mode, make sure the radio button beside Disable is selected. DTIM Interval. (2.4GHz/802.11b only) This value indicates the interval of the Delivery Traffic Indication Message (DTIM). A DTIM field is a countdown field informing clients of the next window for listening to broadcast and multicast messages. When the Access Point has buffered broadcast or multicast messages for associated clients, it sends the next DTIM with a DTIM Interval value. Access Point Clients hear the beacons and awaken to receive the broadcast and multicast messages. Transmission Rates. The basic transfer rates should be set depending on the speed of your wireless network. You can select from a range of transmission speeds or select Best to have the Access Point automatically engage the networks optimum speed. Preamble Type. (2.4GHz/802.11b only) The preamble defines the length of the CRC block for communication between the Access Point and a roaming Network Card. (High network traffic areas should use the shorter preamble type.) Select the appropriate preamble type and click the Apply button to set it. Authentication Type. You may choose between Open System or Shared Key. The Authentication Type default is set to Open System, in which the sender and the recipient do NOT share a secret key. Each party generates its own key-pair and asks the receiver to accept the randomly-generated key. Once accepted, this key is used for a short time only. Then a new key is generated and agreed upon. Shared Key is when both the sender and the recipient share a secret key.
Appendix A: Troubleshooting
This chapter provides solutions to problems usually encountered during the installation and operation of the Access Point. Read the description below to solve your problems. If you cant find an answer here, check the Linksys website at www.linksys.com. Frequently Asked Questions Can the Access Point act as my DHCP Server? No. The Access Point is nothing more than a wireless hub, and as such cannot be configured to handle DHCP capabilities. Can I run an application from a remote computer over the wireless network? This will depend on whether or not the application is designed to be used over a network. Consult the applications user guide to determine if it supports operation over a network. Can I play multiplayer games with other users of the wireless network? Yes, as long as the game supports multiple players over a LAN (local area network). Refer to the games user guide for more information. What IEEE 802.11a features are supported? The product supports the following IEEE 802.11a functions: OFDM protocol Multi-Channel Roaming Automatic Rate Selection RTS/CTS feature Fragmentation What IEEE 802.11b features are supported? The product supports the following IEEE 802.11 functions: CSMA/CA plus Acknowledge protocol Multi-Channel Roaming Automatic Rate Selection RTS/CTS feature Fragmentation Power Management

Would the information be intercepted while transmitting on air? WLAN features two-fold protection in security. On the hardware side, as with Direct Sequence Spread Spectrum technology, it has the inherent security feature of scrambling. On the software side, the WLAN series offers the encryption function (WEP) to enhance security and access control. Users can set it up depending upon their needs. Can Instant WirelessTM products support file and printer sharing? Instant WirelessTM products perform the same function as LAN products. Therefore, Instant WirelessTM products can work with Netware, Windows NT/2000, or other LAN operating systems to support printer or file sharing. What is WEP? WEP is Wired Equivalent Privacy, a data privacy mechanism based on a 40-bit shared-key algorithm, as described in the IEEE 802.11 standard. What is a MAC Address? The Media Access Control (MAC) address is a unique number assigned by the manufacturer to any Ethernet networking device, such as a network adapter, that allows the network to identify it at the hardware level. For all practical purposes, this number is usually permanent. Unlike IP addresses, which can change every time a computer logs on to the network, the MAC address of a device stays the same, making it a valuable identifier for the network. How do I avoid interference? Using multiple Access Points on the same channel and in close proximity to one another will generate interference. When employing multiple Access Points, be sure to operate each one on a different channel (frequency). How do I reset the Access Point? Press the Reset button on the back of the Access Point for about ten seconds. This will reset the unit to its default settings. How do I resolve issues with signal loss? There is no way to know the exact range of your wireless network without testing. Every obstacle placed between an Access Point and wireless PC will create signal loss. Leaded glass, metal, concrete floors, water and walls will inhibit the signal and reduce range. Start with your Access Point and your wireless PC in the same room and move it away in small increments to determine the maximum range in your environment.
You may also try using different channels, as this may eliminate interference affecting only one channel. Also, due to FCC regulations, more power may be transmitted, using 802.11a, on channels 52, 56, 60 and 64, than on the lower channels. Lastly, check the Advanced tab of the Web-Based Utility and make sure that FULL is selected in the Transmission Rate field. Does the Turbo Mode work with Windows XP PCs? No. The Turbo Mode does not work with Windows XP PCs. Does the Access Point function as a firewall? No. The Access Point is only a bridge from wired Ethernet to wireless clients. I have excellent signal strength, but I cannot see my network. WEP is probably enabled on the Access Point, but not on your wireless adapter (or vice versa). Verify that the same WEP Keys and levels (64, 128 or 152) are being used on all nodes on your wireless network. What is the maximum number of users the Access Point facilitates? No more than 65, but this depends on the volume of data and may be less if many users create a large amount of network traffic. How many channels/frequencies are available with the Access Point? Using 802.11a, there are eight available frequencies, ranging from 5.15GHz to 5.32GHz. Using 802.11b, there are eleven available channels, ranging from 1 to 11. What is Turbo mode? Turbo mode allows high-speed connections, but severely limits range. Turbo mode must be enabled on both the Access Point and the wireless PCs to function. Turbo mode is not compatible with Windows XP and may only function with Linksys 5GHz wireless adapters. What is the difference in range between 802.11a and 802.11b products? Overall, range will be a little less in a typical environment, while higher speeds may be achieved with 802.11a, throughput degrades more quickly. (See Figure A-1.) Figure A-1

The following instructions are provided as examples for reference only. For complete instructions on installing and troubleshooting TCP/IP and IPX, consult your Windows operating system documentation. TCP/IP Setup for Windows 95, 98, and Millennium 1. Click the Start button, select Settings, and open the Control Panel. Inside the Control Panel, double-click the Network icon. 2. If the TCP/IP Protocol is listed for your network adapter, go to step five. Otherwise, click the Add button. 3. When the Component Type window appears, select Protocol and click the Add button. 4. Select Microsoft in the Manufacturers list and choose TCP/IP in the Network Protocols list. Then, click the OK button. 5. When the Network window reappears, click TCP/IP. Then, click the Properties button. 6. Select Specify an IP Address. 7. Enter an IP Address for the computer, along with a Subnet Mask. Click the OK button. If you do not have these values, consult your network administrator. 8. When the Network window reappears, click the OK button. Restart your machine. TCP/IP has now been successfully installed. IPX Setup for Windows 95, 98, and Millennium 1. Click the Start button, select Settings, and open the Control Panel. Inside the Control Panel, double-click the Network icon. 2. If the TCP/IP Protocol is listed for your network adapter, go to step four. Otherwise, click the Add button. 3. When the Component Type window appears, select Protocol and click the Add button. 4. Select Microsoft in the Manufacturers list and choose IPX/SPX protocol in the Network Protocols list. Then, click the OK button.
Appendix B: Setting Up the TCP/IP and IPX Protocols
Setting Up TCP/IP in Windows Before a computer can communicate with the Access Point, it must be configured with the TCP/IP protocol. If you know how to set up TCP/IP on your computers, do so now. Otherwise, use the guidelines below to help get TCP/IP installed on all of the computers that need to communicate with the Access Point. If you are unable to successfully install TCP/IP on one or more computers after following the directions, contact the manufacturer of your computers' network operating system for further assistance. Check with your network administrator for your TCP/IP settings. The directions below provide general guidelines for coming up with IP addresses and subnet masks. Check with your network administrator to see if you need to use specific IP addresses or DHCP settings. First, each computer on the network will require an IP address, which is a series of numbers, separated by periods, identifying the PC on the network. To make things simple, you should use the following numbering scheme: 192.168.1.X In this example, X is a unique, arbitrarily assigned number from 1 to 254. Each computer must have its own unique X number. Note: Never use 0, 250 or 255 for X. These numbers are reserved by TCP/IP for other uses. For example, if you have three computers, you could number them as follows: 192.168.1.17 192.168.1.44 192.168.1.126 In this case, 17, 44, and 126 are arbitrary numbers between 1 and 254. Each computer will also require a subnet mask, which is a numerical filter that tells a computer what kinds of TCP/IP data packets to accept. If youre not sure which mask to use, the following mask is recommended: 255.255.255.0

Ethernet - IEEE standard network protocol that specifies how data is placed on and retrieved from a common transmission medium. Has a transfer rate of 10 Mbps. Forms the underlying transport vehicle used by several upper-level protocols, including TCP/IP and XNS. FHSS (Frequency Hopping Spread Spectrum) - FHSS continuously changes the center frequency of a conventional carrier several times per second according to a pseudo-random set of channels, while chirp spread spectrum changes the carrier frequency. Because a fixed frequency is not used, illegal monitoring of spread spectrum signals is extremely difficult, if not downright impossible depending on the particular method. Firmware - Programming that is inserted into programmable read-only memory (programmable read-only memory), thus becoming a permanent part of a computing device. Fragmentation - Breaking a packet into smaller units when transmitting over a network medium that cannot support the original size of the packet. Gateway - A device that interconnects networks with different, incompatible communications protocols. Hardware - Hardware is the physical aspect of computers, telecommunications, and other information technology devices. The term arose as a way to distinguish the "box" and the electronic circuitry and components of a computer from the program you put in it to make it do things. The program came to be known as the software. Hub - The device that serves as the central location for attaching wires from workstations. Can be passive, where there is no amplification of the signals; or active, where the hubs are used like repeaters to provide an extension of the cable that connects to a workstation. IEEE (The Institute of Electrical and Electronics Engineers) - The IEEE describes itself as "the world's largest technical professional society, promoting the development and application of electrotechnology and allied sciences for the benefit of humanity, the advancement of the profession, and the well-being of our members."
The IEEE fosters the development of standards that often become national and international standards. The organization publishes a number of journals, has many local chapters, and several large societies in special areas, such as the IEEE Computer Society. Infrastructure - An infrastructure network is a wireless network or other small network in which the wireless network devices are made a part of the network through the Access Point which connects them to the rest of the network. IP Address - In the most widely installed level of the Internet Protocol (Internet Protocol) today, an IP address is a 32-binary digit number that identifies each sender or receiver of information that is sent in packet across the Internet. When you request an HTML page or send e-mail, the Internet Protocol part of TCP/IP includes your IP address in the message (actually, in each of the packets if more than one is required) and sends it to the IP address that is obtained by looking up the domain name in the Uniform Resource Locator you requested or in the e-mail address you're sending a note to. At the other end, the recipient can see the IP address of the Web page requestor or the e-mail sender and can respond by sending another message using the IP address it received. ISM band - The FCC and their counterparts outside of the U.S. have set aside bandwidth for unlicensed use in the ISM (Industrial, Scientific and Medical) band. Spectrum in the vicinity of 2.4 GHz, in particular, is being made available worldwide. This presents a truly revolutionary opportunity to place convenient high-speed wireless capabilities in the hands of users around the globe. LAN - A local area network (LAN) is a group of computers and associated devices that share a common communications line and typically share the resources of a single processor or server within a small geographic area (for example, within an office building). MAC (Media Access Control) Address - A unique number assigned by the manufacturer to any Ethernet networking device, such as a network adapter, that allows the network to identify it at the hardware level. Mbps (MegaBits Per Second) - One million bits per second; unit of measurement for data transmission. Multicasting - Sending data to a group of nodes instead of a single destination.

Network - A system that transmits any combination of voice, video and/or data between users. Node - A network junction or connection point, typically a computer or work station. OFDM - OFDM (Orthogonal Frequency Division Muliplexing) works by breaking one high-speed data stream into a number of lower-speed data streams, which are then transmitted in parallel. Each lower speed stream is used to modulate a subcarrier. Essentially, this creates a multi-carrier transmission by dividing a wide frequency band or channel into a number of narrower frequency bands or sub-channels. Packet - A unit of data routed between an origin and a destination in a network. Passphrase - Used much like a password, a passphrase simplifies the WEP encryption process by automatically generating the WEP encryption keys for Linksys products. PC Card - A credit-card sized removable module that contains memory, I/O, or a hard disk. Port - A pathway into and out of the computer or a network device such as a switch or router. For example, the serial and parallel ports on a personal computer are external sockets for plugging in communications lines, modems and printers. RJ-45 (Registered Jack-45) - A connector similar to a telephone connector that holds up to eight wires, used for connecting Ethernet devices. Roaming - The ability to use a wireless device and be able to move from one access point's range to another without losing the connection. Router - Protocol-dependent device that connects subnetworks together. Routers are useful in breaking down a very large network into smaller subnetworks; they introduce longer delays and typically have much lower throughput rates than bridges. RTS (Request To Send) - An RS-232 signal sent from the transmitting station to the receiving station requesting permission to transmit.
Server - Any computer whose function in a network is to provide user access to files, printing, communications, and other services. Software - Instructions for the computer. A series of instructions that performs a particular task is called a "program." The two major categories of software are "system software" and "application software." System software is made up of control programs such as the operating system and database management system (DBMS). Application software is any program that processes data for the user. A common misconception is that software is data. It is not. Software tells the hardware how to process the data. SOHO (Small Office/Home Office) - Market segment of professionals who work at home or in small offices. Spread Spectrum - Spread Spectrum technology is a wideband radio frequency technique developed by the military for use in reliable, secure, mission-critical communications systems. It is designed to trade off bandwidth efficiency for reliability, integrity, and security. In other words, more bandwidth is consumed than in the case of narrowband transmission, but the trade off produces a signal that is, in effect, louder and thus easier to detect, provided that the receiver knows the parameters of the spread-spectrum signal being broadcast. If a receiver is not tuned to the right frequency, a spread-spectrum signal looks like background noise. There are two main alternatives, Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS). Static IP Address - A permanent IP address that is assigned to a node in an IP or a TCP/IP network. Subnet Mask - The method used for splitting IP networks into a series of subgroups, or subnets. The mask is a binary pattern that is matched up with the IP address to turn part of the host ID address field into a field for subnets. Switch - 1. A data switch connects computing devices to host computers, allowing a large number of devices to share a limited number of ports. 2. A device for making, breaking, or changing the connections in an electrical circuit. TCP (Transmission Control Protocol) - A method (protocol) used along with the Internet Protocol (Internet Protocol) to send data in the form of message units between computers over the Internet. While IP takes care of handling the

actual delivery of the data, TCP takes care of keeping track of the individual units of data (called packet) that a message is divided into for efficient routing through the Internet. TCP/IP (Transmission Control Protocol/Internet Protocol) - The basic communication language or protocol of the Internet. It can also be used as a communications protocol in a private network (either an intranet or an extranet). When you are set up with direct access to the Internet, your computer is provided with a copy of the TCP/IP program just as every other computer that you may send messages to or get information from also has a copy of TCP/IP. Throughput - The amount of data moved successfully from one place to another in a given time period. Topology - A network's topology is a logical characterization of how the devices on the network are connected and the distances between them. The most common network devices include hubs, switches, routers, and gateways. Most large networks contain several levels of interconnection, the most important of which include edge connections, backbone connections, and wide-area connections. Upgrade - To replace existing software or firmware with a newer version. Upload - To transmit a file over a network. In a communications session, upload means transmit, download means receive. UTP - Unshielded twisted pair is the most common kind of copper telephone wiring. Twisted pair is the ordinary copper wire that connects home and many business computers to the telephone company. To reduce crosstalk or electromagnetic induction between pairs of wires, two insulated copper wires are twisted around each other. Each signal on twisted pair requires both wires. Since some telephone sets or desktop locations require multiple connections, twisted pair is sometimes installed in two or more pairs, all within a single cable. WEP (Wired Equivalent Privacy) - A data privacy mechanism based on a 64bit, 128-bit, or 256-bit shared key algorithm, as described in the IEEE 802.11 standard.
Appendix D: Specifications
Standards Channels IEEE 802.3, 802.3u, 802.11a and 802.11b 802.11a 802.11b 8 Channels (US, Canada) 11 Channels (US, Canada) 13 Channels (Europe) 14 Channels (Japan)

Ports/Buttons

One 10/100 RJ-45 Port, One Power Port, One Reset Button, One Power Switch UTP CAT 5 or better Up to 54Mbps (up to 72 Mbps in Turbo Mode) 802.11a 802.11b 18dBm 15dBm
Cabling Type Data Rate Transmit Power
Power, Diag 802.11a: Act, Link 802.11b: Act, Link LAN: Link/Act, Full/Col, 100
Environmental Dimensions Antenna Height Unit Weight Power Certifications Operating Temp. Storage Temp. Operating Humidity Storage Humidity 7.31" x 1.88" x 6.88" (186 mm x 48 mm x 175 mm) 4.5" (114 mm) 15 oz. (0.42 kg) External, 5V DC, 2.5A FCC, Canada 0C to 40C (32F to 104F) -20C to 70C (-4F to 158F) 10% to 85% Non-Condensing 5% to 90% Non-Condensing

Appendix E: Warranty Information
BE SURE TO HAVE YOUR PROOF OF PURCHASE AND A BARCODE FROM THE PRODUCTS PACKAGING ON HAND WHEN CALLING. RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE. IN NO EVENT SHALL LINKSYSS LIABILITY EXCEED THE PRICE PAID FOR THE PRODUCT FROM DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF THE PRODUCT, ITS ACCOMPANYING SOFTWARE, OR ITS DOCUMENTATION. LINKSYS DOES NOT OFFER REFUNDS FOR ANY PRODUCT. LINKSYS OFFERS CROSS SHIPMENTS, A FASTER PROCESS FOR PROCESSING AND RECEIVING YOUR REPLACEMENT. LINKSYS PAYS FOR UPS GROUND ONLY. ALL CUSTOMERS LOCATED OUTSIDE OF THE UNITED STATES OF AMERICA AND CANADA SHALL BE HELD RESPONSIBLE FOR SHIPPING AND HANDLING CHARGES. PLEASE CALL LINKSYS FOR MORE DETAILS.
Appendix F: Contact Information
For help with the installation or operation of this product, contact Linksys Technical Support at one of the phone numbers or Internet addresses below. Sales Information Technical Support RMA Issues Fax Email Web FTP Site 800-546-5797 (LINKSYS) 800-326-7114 949-261-1288 949-261-8868 support@linksys.com http://www.linksys.com ftp.linksys.com
http://www.linksys.com Copyright 2002 Linksys, All Rights Reserved.