Linksys WAP11 - Instant Wireless Network Access... User manual

Instant WirelessTM Series
Wireless Network
Access Point
Use this guide to install: WAP11 ver. 2.2 User Guide

COPYRIGHT & TRADEMARKS
Copyright © 2002 Linksys, All Rights Reserved. Instant Wireless™ is a registered trade-
mark of Linksys. Microsoft, Windows, and the Windows logo are registered trademarks
of Microsoft Corporation. All other trademarks and brand names are the property of their
respective proprietors.
LIMITED WARRANTY
Linksys guarantees that every Wireless Network Access Point is free from physical
defects in material and workmanship under normal use for one year from the date of pur-
chase. If the product proves defective during this warranty period, call Linksys Technical
Support in order to obtain a Return Authorization Number. BE SURE TO HAVE YOUR
PROOF OF PURCHASE AND A BARCODE FROM THE PRODUCT’S PACKAGING ON
HAND WHEN CALLING. RETURN REQUESTS CANNOT BE PROCESSED WITHOUT
PROOF OF PURCHASE. When returning a product, mark the Return Authorization
Number clearly on the outside of the package and include a copy of your original proof
of purchase. All customers located outside of the United States of America and Canada
shall be held responsible for shipping and handling charges.
IN NO EVENT SHALL LINKSYS’ LIABILITY EXCEED THE PRICE PAID FOR THE PROD-
UCT FROM DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAM-
AGES RESULTING FROM THE USE OF THE PRODUCT, ITS ACCOMPANYING SOFT-
WARE, OR ITS DOCUMENTATION. LINKSYS DOES NOT OFFER REFUNDS FOR ANY
PRODUCT. Linksys makes no warranty or representation, expressed, implied, or statuto-
ry, with respect to its products or the contents or use of this documentation and all
accompanying software, and specifically disclaims its quality, performance, mer-
chantability, or fitness for any particular purpose. Linksys reserves the right to revise or
update its products, software, or documentation without obligation to notify any individ-
ual or entity. Please direct all inquiries to:
Linksys P.O. Box 18558, Irvine, CA 92623.
FCC STATEMENT
This product has been tested and complies with the specifications for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide rea-
sonable protection against harmful interference in a residential installation. This equip-
ment generates, uses, and can radiate radio frequency energy and, if not installed and
used according to the instructions, may cause harmful interference to radio communi-
cations. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television
reception, which is found by turning the equipment off and on, the user is encouraged to
try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment or devices
• Connect the equipment to an outlet other than the receiver’s
• Consult a dealer or an experienced radio/TV technician for assistance
FCC Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance
20cm between the radiator and your body.
UG-WAP11 ver. 2.2-071002B JL

Wireless Network Access Point
Chapter 1: Introduction
The Instant WirelessTM Network Access Point
Don’t be bound by cabling restrictions any longer! The Instant Wireless™
NetworkAccess Point from Linksys delivers the freedom to configure your net-
work your way. Utilization of state-of-the-art wireless technology gives you the
ability to set up workstations in ways you never thought possible; no cables to
install means fewer expenses and fewer hassles.
The Instant Wireless™ Network Access Point’s high-powered antennae offer a
range of operation of up to 1500 feet, providing seamless roaming throughout
your LAN infrastructure. Advanced user authentication ensures a high level of
security for wireless networking, while easy-to-useWindows-based diagnostics
and statistics tools ensure that you’ll always be in control. Best of all, the
Instant Wireless™ Network Access Point features easy installation—just plug
it in and you’re ready to go!
When all these features come together in one compact, lightweight, and power-
efficient unit, you have the ultimate in flexible networking—the Linksys
Instant Wireless™ Network Access Point.
Features
• Highly Efficient Dipole Antennae Provide Extensive Range of Operation
• Enjoy Your Wireless Office Beyond the Range of Ethernet Networking
• Auto Fall-Back Data Rate for Long-Distance Communication and Noisy
Environments
• High-Speed Data Transfer Rate Up to 11 Mbps
• Interoperable with IEEE 802.11b (DSSS) 2.4GHz-Compliant Equipment
• Features Roaming and Network Traffic Filtering
• Extensive Operating Range Supports up to 300 ft. (Indoors) and 500 feet
(Outdoors)
• Up to 256-Bit Wired Equivalent Privacy Supported
• Free Software Driver Upgrades
• Compatible with Virtually All Major Operating Systems
• FreeTechnical Support—24 Hours a Day, 7 Days a Week for North America
Only
• 1-Year Limited Warranty
Table of Contents
Chapter 1: Introduction 1
The Instant WirelessTM Network Access Point 1
Features 1
Package Contents 2
System Requirements 2
Chapter 2: PlanningYour Wireless Network 3
Network Topology 3
Roaming 3
Chapter 3: Getting to Know the Wireless Network Access Point 4
The Wireless Network Access Point’s Ports 4
The Wireless Network Access Point’s LEDs 5
Chapter 4: Connecting theWireless NetworkAccess Point 6
Chapter 5: Setting Up theWireless NetworkAccess Point 7
Chapter 6: Configuring the Wireless NetworkAccess Point 14
The Setup Tab 14
The Password Tab 19
The Status Tab 20
The Help Tab 22
The Filter Tab 23
The Wireless Tab 25
AppendixA: Troubleshooting 28
Frequently Asked Questions 28
Appendix B: Setting Up the TCP/IP Protocol 32
Setting Up TCP/IP in Windows 32
TCP/IP Setup for Windows 95, 98, and Millennium 33
TCP/IP Setup for Windows NT 4.0 34
TCP/IP Setup for Windows 2000 35
Appendix C: Glossary 36
Appendix D: Specifications 44
Environmental 45
Appendix E:Warranty Information 46
Appendix F: Contact Information 47
1
Instant WirelessTM Series

Wireless Network Access Point
3
Chapter 2: Planning Your
Wireless Network
A wireless LAN is a group of computers, each equipped with one Instant
Wireless™ Series adapter. Computers in a wireless LAN must be configured
to share the same radio channel.
The Instant Wireless™ Series adapters provide access to a wired LAN for wire-
less workstations. An integrated wireless and wired LAN is called an
Infrastructure configuration. A group of Instant Wireless™ Series adapter
users and an Instant Wireless™ Wireless Network Access Point compose a
Basic Service Set (BSS). Each Instant Wireless™ Series adapter PC in a BSS
can talk to any computer in a wired LAN infrastructure via the Instant
Wireless™ Wireless Network Access Point.
An infrastructure configuration extends the accessibility of an Instant
Wireless™ Series adapter PC to a wired LAN, and doubles the effective wire-
less transmission range for two Instant Wireless™ Series adapter PCs. Since
the Wireless Network Access Point is able to forward data within its BSS, the
effective transmission range in an infrastructure LAN is doubled.
Infrastructure mode also supports roaming capabilities for mobile users. More
than one BSS can be configured as an Extended Service Set (ESS). This con-
tinuous network allows users to roam freely. All PCs equipped with an Instant
Wireless™ Series adapter must be configured with the same SSID and use the
same radio channel.
Before enabling a network with roaming capability, choosing a feasible radio
channel and optimum Wireless Network Access Point position is recommend-
ed. Proper Wireless Network Access Point positioning combined with a clear
radio signal will greatly enhance performance.
Instant WirelessTM Series
Package Contents
• One Instant WirelessTM Wireless Network Access Point
• One AC Power Adapter
• One Setup Wizard CD-ROM (with User Guide)
• Two Detachable Antennae
• One Quick Installation and Registration Card (not shown)
• One CAT 5 Ethernet Cable (not shown)
System Requirements
• A Windows 95, 98, Millennium, NT version 4.0, 2000, or XP PC
• Internet Explorer ver. 4.0 or higher
• One CD-ROM Drive
2
Roaming
Figure 1-1
Network Topology

Wireless Network Access Point
Instant WirelessTM Series
Chapter 3: Getting to Know the
Wireless Network Access Point
The Access Point’s ports, where a network cable is connected, are located on
the Access Point’s rear panel.
Dipole Antenna
Connectors These two round connections are where the antennae are
connected to the Access Point.
LAN This LAN (Local Area Network) port connects to
Ethernet network devices, such as a hub, switch, or
router.
Power The Power port is where you will connect the power
adapter.
Reset Button There are two ways to Reset the Access Point’s factory
defaults. Briefly press the Reset Button for approximately
ten seconds, or use the Password tab of theAccess Point’s
Web-Based Utility.
4
The Wireless Network Access Point’s Ports
Figure 3-1
T
Power Red. The Power LED lights up when the Access Point is
powered on.
ACT Green. If the LED is flickering, the Access Point is actively
sending or receiving data to or from one of the devices on the
network.
LINK Amber. The LINK LED serves two purposes. If the LED is
continuously lit up, theAccess Point is successfully connect-
ed to a device through the LAN port. If the LED is flicker-
ing, it is an indication of any network activity.
The Wireless Network Access Point’s LEDs
Figure 3-2
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.
5

Chapter 5: Setting Up the
Wireless Network Access Point
Now that you’ve 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 get the Access Point connecting your wireless network to
your wired network and communicating more efficiently.
1. Insert the Setup Wizard CD into your PC’s CD-ROM drive. Optimally, your
PC should be on your wired network.
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 autorun manually by click-
ing the Start button, selecting Run, and typing d:\setup.exe (where “D” is
your PC’s 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.
Chapter 4: Connecting the
Wireless Network 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 anten-
na, the better the performance will be. The antenna’s position enhances the
receiving sensitivity. Both antennae should be perpendicular to the ground
and parallel to each other.
3. Connect a standard Ethernet network cable to theAccess 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 Point’s Power Socket.
Only use the power adapter supplied with theAccess Point. Use of a differ-
ent adapter may result in product damage.
Now that the hardware installation is complete, proceed to Chapter 5: Setting
Up the Wireless Network Access Point for directions on how to setup the
Access Point.
6
Wireless Network Access Point
Instant WirelessTM Series
Have You: Connected the Access Point to a hub, switch or router
on your wired network as shown in Chapter 4: Connecting the
Wireless Network Access Point.
Note: While the Access Point has been designed to work correct-
ly 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 Web-based Browser Utility.
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 theAccess Point.
7

9
3. The following screen, shown in Figure 5-2, displays how there are two ways
to configure the Access Point in this Setup Wizard. Optimally, you should
perform this setup through a PC on your wired network.You can also set up
the Access Point through one of the PCs on your wireless network. Click
the Next button to continue or Exit to exit the Setup Wizard.
8
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.
5. As shown in Figure 5-4, the Basic Settings screen will now appear. Enter
your wireless network’s SSID, select the channel at which the network
broadcasts its wireless signal, and enter a unique access point name for the
Access Point. Then, click the Next button to continue or Back to 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 net-
work. 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 corre-
spond 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.
Wireless Network Access PointInstant WirelessTM Series
Figure 5-2
Figure 5-3
Figure 5-1

• IP Address. This IP address must be unique to your network. (The
default IP address of 192.168.1.251.) As this is a private IP address,
there is no need to purchase a separate IP address from your service
provider.
• IP Mask. The Access Point’s IP Mask (also known as a Subnet Mask)
must be the same as your Ethernet network.
• Gateway. This setting only appears when the DHCP, Automatically
obtain an IP Address, option is enabled; it indicates the status of the
gateway and is not user-adjustable.
7. The Security Settings screen (Figure 5-6) will appear next. From this
screen, you will set the Wired Equivalent Privacy (WEP) encryption for
your wired network. Select a WEP configuration method and a passphrase.
Then, click the Next button to continue or Back to previous page.
• WEP (Disable/64-bit WEP/128-bit WEP/256-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. The Access Point’s WEP encryption is unique to Linksys and
may conflict with other vendors’WEP encryption.
11
• 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.
6. As shown in Figure 5-5, the IP Settings screen will appear next. Unless your net-
work has a DHCP server, you will want to click the radio button beside Set IP
Address Manually to select this option. Enter an IP Address and IP Mask appro-
priate to your network. Then, click the Next button to continue or Back to pre-
vious page.
10
Wireless Network Access Point
Instant WirelessTM Series
Figure 5-5
Figure 5-6
Figure 5-4

• Passphrase. This is the code used when logging a wireless device onto
the wireless network. It is a text string with a maximum of 16 alphanu-
meric characters. The WEP Key Settings are based upon the Passphrase
determined by you. Type that here. This passphrase may not work with
non-Linksys products due to possible incompatibility with other vendors’
passphrase generators.
8. The following Security Settings 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 appro-
priate key is entered and click the Next button to continue or Back to pre-
vious page.
12
Instant WirelessTM Series Wireless Network Access Point
9. The next screen (Figure 5-8) will allow you to review your settings. If these
settings are correct, click the Yes button to save these settings. If there are
any problems with the settings, click the No button and you will return to
the screen shown in Figure 5-2.
10. At this point, the configuration performed with the Setup Wizard is com-
plete, as shown in Figure 5-9.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.
13
Figure 5-9
Figure 5-7
Figure 5-8

14
• Obtain an IP Address Automatically. Click this radio button to allow the
Access Point to obtain a dynamic IP address from a DHCP server.
• Specify an IP Address. This IP address must be unique to your network.
We suggest you use the default IP address of 192.168.1.251. As this is a pri-
vate 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 Point’s Subnet Mask (or IP Mask) must be the
same as your Ethernet network. Verify this is correct and click the Apply
button to set it.
• Gateway. This setting only appears when the DHCP client is enabled and
the IP Address is obtained automatically. It indicates the status of the gate-
way and is not user-adjustable.
15
Wireless Network Access Point
Instant WirelessTM Series
Chapter 6: Configuring the
Wireless Network Access Point
The Access Point has been designed to be functional right out of the box, with
the default settings in the Setup Wizard. However, if you’d like to change these
settings, theAccess 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. 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 on the
screen shown in Figure
6-7.
The first screen that appears, shown in Figure 6-2, is the “Setup” tab. This
allows you to change theAccess Point’s 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.
• 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 Setup Tab
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 Mode pull-down menu will allow you to set the Passphrase in Hexadecimal
or ASCII characters. Hexadecimal characters on your keyboard are the letters
“A” through “F” and the numbers “0” through “9”, while ASCII characters are
any character on your keyboard.
There are two ways to create WEP Encryption keys.The first method is by typ-
ing a Passphrase into that field and clicking the Generate button. This will gen-
erate WEP Encryption keys based upon that passphrase.A second method is to
type the WEP Encryption key in the available fields manually.
SETTING THE AP MODE:
The Access Point offers four modes of operation: Access Point, Access Point
Client, Wireless Bridge, and Wireless Bridge Point to MultiPoint. For all bridg-
ing modes, make sure the channel, SSID, and WEP keys are the same.
• Access Point - The Operational Mode is set to Access Point by default.
This connects your wireless PCs to a wired network. In most cases, no
change is necessary.
• Access Point Client - When set to Access Point Client mode, the Access Point
Client is able to talk to one remote access point within its range. This mode
allows the Access Point Client to act as a client of a remote access point. The
Access Point Client cannot communicate directly with any wireless clients. A
separate network attached to the Access Point Client can then be wirelessly
bridged to the remote access point. Enter the required LAN MAC address of the
remote access point.
Wireless Network Access Point
17
• 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 net-
work. It is case sensitive and must not exceed 32 alphanumeric charac-
ters, 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 corre-
spond 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.
• WEP. The WEP Encryption method is Disabled by default. To enable
WEP, or make it mandatory, click the WEP Key Setting button.
Clicking the Backup button will store the Access Point’s configuration to your
PC’s hard drive. You can restore this information by clicking the Restore but-
ton.
Click the Apply button to apply your changes or Cancel to cancel your
changes. If you require online help, click the Help button.
SETTINGWEP 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.
A screen will pop up, asking you to confirm the WEP change to mandatory, as
shown in Figure 6-3. Click the OK button to enable WEP Encryption or
Cancel to return to the Setup Screen.
This will open the WEP Key Setting screen, Figure 6-4. From this screen, you
can select the type of WEP encryption to use as well as set the Passphrase for
that encryption.
From the pull-down menu at the top of the screen, select 64-bit, 128-bit, or 256-
bit encryption.
Instant WirelessTM Series
16
Figure 6-3
Important: Always remember that each point in your wireless net-
work MUST use the same WEP Encryption method and encryption
key or your wireless network will not function properly.
Figure 6-4

Wireless Network Access Point
Only one of the Access Points must be in Point to MultiPoint mode. For all
other bridged Access Points, select the Point to Point option, and enter the
Remote LAN MAC Address of the Access Point set to Point to MultiPoint.
Click the Apply button to apply your changes or Cancel to cancel your
changes. If you require online help, click the Help button.
The “Password” tab, shown in Figure 6-7, allows you to change the Access
Point’s 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 Point’s factory default settings, click the Yes button
beside Restore Factory Defaults.
19
Instant Wireless™ Series
• Wireless Bridge - If you are trying to make a wireless connection between
two wired networks, as shown in Figure 6-5, select Wireless Bridge. This
mode connects two physically separated LAN segments with two Access
Points.
To configure a Wireless Bridge environment, click Wireless Bridge and
enter the Remote Bridge LAN MACAddress of the remote Access Point.
The remote Access Point also needs to be set up as a Wireless Bridge.
Note: All devices on each wired network must be connected through a hub
or switch.
• Wireless Bridge Point to MultiPoint- If you are trying to make a wireless
connection between more than two wired networks, as shown in Figure 6-
6, select Wireless Bridge Point to MultiPoint. This mode allows you to
construct a network that has multiple Access Points bridging wirelessly.
To configure a Wireless Bridge Point to MultiPoint environment, click
Wireless Bridge Point to MultiPoint for the Access Point used in LAN 1.
No MAC Address binding is needed. Then, set theAccess Points in LAN 2
and LAN 3 to Point to Point, and have them look for the MAC Address of
the Access Point in LAN 1.
18
The Password Tab
Important: Restoring the Access Point’s factory defaults will erase
all of your settings (WEP Encryption, Wireless and LAN settings,
etc.), replacing them with the factory defaults. Do not reset the
Access Point if you want to retain these settings
Note: In Wireless Bridge mode, the Access Point can ONLY be
accessed by another access point in Wireless Bridge mode. In order
for your other wireless devices to access the Access Point, you must
reset it toAccess Point mode. The two modes are mutually exclusive.
Figure 6-5
Note: Linksys recommends bridging no more than three remote
LANs in Wireless Bridge Point to MultiPoint mode. Bridging addi-
tional remote LANs will result in a significant decrease in bandwidth.
Figure 6-6

Wireless Network Access Point
• SSID. The unique name shared among all points in your wireless network
is displayed here.
• Encryption Function. The encryption method you chose in the Setup
Wizard or changed from the Setup Tab of this Web-based Utility is dis-
played here.
• Channel. The wireless channel shared by all wireless devices connected to
this Access Point is displayed here.
• Send and Recv. The Send and Recv fields under the Wireless’s status dis-
play the amount of packets sent and received. Some packet loss is normal
in wireless networking.
21
Instant Wireless™ Series
Click the Apply button to apply your changes or Cancel to cancel your
changes. If you require online help, click the Help button.
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 Point’s
firmware. Firmware should only be upgraded if you experience problems
with the Access Point and can be upgraded from the Help tab.
• IPAddress. This IP address is the unique address to your network.
• Subnet Mask.The Access Point’s Subnet Mask (also known as a IP Mask),
which is the same as your Ethernet network.
• Gateway. This setting indicated the Network’s Gateway mask, only appli-
cable when DHCP is enabled.
• Send and Recv. The Send and Recv fields under the LAN’s status display
the amount of packets sent and received. Some packet loss is normal in
wireless networking.
20
Figure 6-8
Figure 6-7
The Status Tab

Wireless Network Access Point
The following resources require an Internet connection in order to access them.
Click the Linksys Website link to connect to the Linksys homepage for
Knowledgebase help files and information about other Linksys products.
For an Online Manual in PDF format, click that text link. The manual will appear
in Adobe pdf format. If you do not have the Adobe PDF Reader installed on your
computer, click the Adobe Website link or go to the Setup Wizard CD-ROM to
download this software.To download from the CD-ROM, click the Start button and
select Run. Type D:\Acrobat (where “D” is the letter of your CD-ROM drive).
Firmware can be upgraded by clicking theUpgradeFirmwarelink. Do not upgrade
your firmware unless you are experiencing problems with theAccess Point.
The “Filter” tab, shown in Figure 6-11, allows you to block or allow certain com-
puters, by their MAC Address, from communicating with theAccess Point.
To enable filtering of computers by their MAC Addresses, click the Enable radio
button. To disable this feature, click the radio button by Disable.
23
Instant Wireless™ Series
To view a log of the Access Point’s activity, select the “Log” tab, shown in
Figure 6-9.
To enable logging activity, click the Enable radio button beside Access Log.
The default setting for this function is Disable.
The Send Log to option designates from which PC you can view the log. Third
party “View Log” software is required to take advantage of this option.
To view the log, click the View Log button.
Click the Apply button to apply your changes or Cancel to cancel your
changes. If you require online help, click the Help button.
For help on the various tabs in this Web-based Utility, along with upgrading the
Access Point’s firmware and viewing this User Guide, click the “Help” tab,
shown in Figure 6-10.
The help files for the various tabs in this Web-based Utility are listed by tab
name on the left hand side of the screen.
22
Figure 6-10
The Filter Tab
The Log Tab
Figure 6-9
The Help Tab

Wireless Network Access Point
Before making any changes to the Wireless tab, shown in Figure 6-12, please
check your wireless settings on other systems, as these changes will alter the
effectiveness of the Access Point. In most cases, these settings do not need to
be changed.
• Beacon Interval. This value indicates the frequency interval of the beacon.
A beacon is a packet broadcast by theAccess Point to keep the network syn-
chronized. A beacon includes the wireless LAN service area, the AP
address, the Broadcast destination addresses, a time stamp, Delivery Traffic
Indicator Maps, and the Traffic Indicator Message (TIM).
• RTS Threshold. This value should remain at its default setting of 2,432.
Should you encounter inconsistent data flow, only minor modifications are
recommended.
25
Instant Wireless™ Series
Next, determine if theAccess Point will deny access only to the MAC addresses you
will specify, OR if the Access Point will allow access only to the MAC Addresses
you will specify. Click the radio button next to the option that is appropriate.
Above the MAC Address fields, there is a pull-down menu. This pull-down
menu is for selecting the number of computers on your wireless network. For
computers one through ten on your wireless network, 1~10 is selected by
default. If you have more than ten computers on your wireless network, use this
pull-down menu to select 11~20, 21~30, etc., up to a maximum of 50 MAC
Addresses.
Then, type the MACAddress(es) you wish to filter in the MAC Address fields.
When you’ve completed making any changes on this tab, click the Apply but-
ton to save those changes or Undo to exit theWeb-based Utility without saving
changes. For more information on this tab, you can click the Help button.
24
The Wireless Tab
Figure 6-12
Figure 6-11

Wireless Network Access Point
• SSID Broadcast. For security purposes, this selection can be disabled,
allowing only those wireless network cards with the Access Point’s SSID to
communicate with the Access Point. By default, this selection is enabled,
allowing all wireless network cards in your wireless network to communi-
cate with the Access Point.
When you’ve completed making any changes on this tab, click the Apply but-
ton to save those changes or Cancel to exit the Web-based Utility without sav-
ing changes. For more information on this tab, you can click the Help button.
2726
Important: The Access Point will not be recognized by “site-sur-
vey” utilities, such as the Microsoft®Windows®XP Zero
Configuration Utility, if SSID Broadcast is disabled.
• Fragmentation Threshold. This specifies the maximum size a data pack-
et 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. Only minor modifications
of this value are recommended.
• DTIM Interval. 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 mes-
sages. When theAccess 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 must select 1-2 (MBps) if you have
older 802.11 compliant equipment on your network, such as wireless
adapters that support only 1 or 2 Mbps. Selecting 1-2 (MBps), however,
does not limit the basic transfer rates of faster adapters.
• Preamble Type. 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. All wire-
less points (nodes) on your network should use the same preamble type.
• Authentication Type. You may choose between Open System, Shared
Key, and Both. The Authentication Type default is set to Open System.
Shared Key is when both the sender and the recipient share a secret key.
All points on your network must use the same authentication type. It is rec-
ommended that you use the default setting.
• Antenna Selection. This selection is for choosing which antenna transmits
data. By default, the Diversity Antenna selection, used to increase recep-
tion, is chosen.
Instant WirelessTM Series

Wireless Network Access Point
What is Infrastructure?
An integrated wireless and wired LAN is called an Infrastructure configura-
tion. Infrastructure is applicable to enterprise scale for wireless access to a cen-
tral database, or wireless application for mobile workers.
What is Roaming?
Roaming is the ability of a portable computer user to communicate continu-
ously while moving freely throughout an area greater than that covered by a
single Access Point. Before using the roaming function, the workstation must
make sure that it is the same channel number as the Access Point of the dedi-
cated coverage area.
To achieve true seamless connectivity, the wireless LAN must incorporate a
number of different functions. Each node and Access Point, for example, must
always acknowledge receipt of each message. Each node must maintain contact
with the wireless network even when not actually transmitting data. Achieving
these functions simultaneously requires a dynamic RF networking technology
that linksAccess Points and nodes. In such a system, the user’s end node under-
takes a search for the best possible access to the system. First, it evaluates such
factors as signal strength and quality, as well as the message load currently
being carried by each Access Point and the distance of each Access Point to the
wired backbone. Based on that information, the node next selects the right
Access Point and registers its address. Communications between end node and
host computer can then be transmitted up and down the backbone.
As the user moves on, the end node’s RF transmitter regularly checks the sys-
tem to determine whether it is in touch with the original Access Point or
whether it should seek a new one. When a node no longer receives acknowl-
edgment from its original Access Point, it undertakes a new search. Upon find-
ing a new Access Point, it then re-registers, and the communication process
continues.
What is BSS ID?
A specific Ad-hoc LAN is called a Basic Service Set (BSS). Computers in a
BSS must be configured with the same BSS ID.
What is ESSID?
An Infrastructure configuration could also support roaming capability for
mobile workers. More than one BSS can be configured as an Extended Service
Set (ESS). Users within an ESS could roam freely between BSSs while main-
taining a continuous connection to the wireless network stations and Access
Points.
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Instant Wireless™ Series
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 can’t find an answer here, check the Linksys web-
site at www.linksys.com.
Can theAccess Point act as my DHCP Server?
No. TheAccess 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 net-
work?
This will depend on whether or not the application is designed to be used over
a network. Consult the application’s user guide to determine if it supports oper-
ation 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 net-
work). Refer to the game’s user guide for more information.
What is the IEEE 802.11b standard?
The IEEE 802.11b Wireless LAN standards subcommittee is formulating a
standard for the industry. The objective is to enable wireless LAN hardware
from different manufacturers to communicate.
What IEEE 802.11 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
What isAd-hoc?
AnAd-hoc wireless LAN is a group of computers, each with a WLAN adapter,
connected as an independent wireless LAN.An Ad-hoc wireless LAN is appli-
cable at a departmental scale for a branch or SOHO operation.
28
Frequently Asked Questions

Wireless Network Access Point
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 pur-
poses, 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.
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Instant Wireless™ Series
What is 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.
What is Spread Spectrum?
Spread Spectrum technology is a wideband radio frequency technique devel-
oped by the military for use in reliable, secure, mission-critical communica-
tions 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).
What is DSSS? What is FHSS?And what are their differences?
Frequency Hopping Spread Spectrum (FHSS) uses a narrowband carrier that
changes frequency in a pattern that is known to both transmitter and receiver.
Properly synchronized, the net effect is to maintain a single logical channel.To
an unintended receiver, FHSS appears to be short-duration impulse noise.
Direct Sequence Spread Spectrum (DSSS) generates a redundant bit pattern for
each bit to be transmitted. This bit pattern is called a chip (or chipping code).
The longer the chip, the greater the probability that the original data can be
recovered. Even if one or more bits in the chip are damaged during transmis-
sion, statistical techniques embedded in the radio can recover the original data
without the need for retransmission. To an unintended receiver, DSSS appears
as low power wideband noise and is rejected (ignored) by most narrowband
receivers.
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 fea-
ture of scrambling. On the software side, the WLAN series offers the encryp-
tion function (WEP) to enhance security and access control. Users can set it up
depending upon their needs.
30

Wireless Network Access Point
The following instructions are provided as examples for reference only. For
complete instructions on installing and troubleshooting TCP/IP, consult your
Windows operating system documentation.
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 ComponentType 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 and then click the
Properties button.
6. Select Specify an IPAddress.
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 adminis-
trator.
8. When the Network window reappears, click the OK button. Restart your
machine. TCP/IP has now been successfully installed.
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Instant Wireless™ Series
Appendix B: Setting Up the TCP/IP
Protocol
Before a computer can communicate with the Access Point, it must be config-
ured with theTCP/IP protocol. If you know how to set upTCP/IP on your com-
puters, 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 comput-
ers 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 address-
es 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, it is recommended you 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 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 you’re not
sure which mask to use, the following mask is recommended:
255.255.255.0
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TCP/IP Setup for Windows 95, 98, and Millennium
Setting Up TCP/IP in Windows

Wireless Network Access Point
1. At the Windows 2000 desktop, right click My Network Places. Then, right
click LocalArea Connection. Choose Properties.
2. If the TCP/IP Protocol is listed for your network adapter, go to step five.
Otherwise, click the Install button.
3. When the ComponentType window appears, select Protocol, and click the
Install button.
4. Select Internet Protocol (TCP/IP) from the list and click the OK button.
5. When the Network window reappears, select TCP/IP, and click the
Properties button.
6. Select Use the following IPAddress.
7. Enter an IP Address for the computer, along with a Subnet Mask and
Default Gateway. Then, click the OK button. If you do not have these val-
ues, consult your network administrator.
8. When the Network window reappears, click the OK button. Restart your
computer. TCP/IP has now been successfully installed.
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Instant Wireless™ Series
1. Click the Start button, select Settings, and open the Control Panel. Inside
the Control Panel, double-click the Network icon.
2. When the Network window appears, click the Protocols tab. Then, click
the Add button.
3. Find the TCP/IP protocol in the Select Network Protocol field. Click on
it once and then click the OK button.
4. When asked if you want to use DHCP, choose No.
5. If asked to supply your Windows NT CD, do so. NT will copy the neces-
sary files to your system. You may have to switch between the Access
Point’s Setup CD and the NT CD.
6. When TCP/IP appears in the Network Protocols window, click the
Bindings tab. Windows will store your new bindings.
7. Click the Protocols tab. Then, select TCP/IP.
8. Click the Properties button. Select the type of network adapter you have
from the Adapters box and select Specify an IPAddress.
9. Enter the computer’s IP Address and Subnet Mask. Check with your net-
work administrator for your settings.
10. Enter your Default Gateway if you have one.
11. When you finish, click the OK button. If NT asks about WINS, ignore it.
12. When the Network window reappears, click the Close button. Restart your
computer when prompted. TCP/IP has now been successfully installed.
34
TCP/IP Setup for Windows 2000TCP/IP Setup for Windows NT 4.0
NNoottee::a Default Gateway is not required. Check with your network administrator.