Linksys WAP55AG - Wireless A+G Access Point User manual

A Division of Cisco Systems, Inc.
®
Model No.
Access Point
WAP55AG
User Guide
WIRELESS
Wireless A+G
Dual-Band
GHz
5
GHz
2.4
802.11g
802.11a
+
Dual-Band

Dual-Band Wireless A + G Access Point
Copyright and Trademarks
Specifications are subject to change without notice. Linksys is a registered trademark or trademark of Cisco
Systems, Inc. and/or its affiliates in the U.S. and certain other countries. Copyright © 2005 Cisco Systems, Inc. All
rights reserved. Other brands and product names are trademarks or registered trademarks of their respective
holders.
How to Use this Guide
Your guide to the Dual-Band Wireless A + G Access Point has been designed to make understanding networking
with the Access Point easier than ever. Look for the following items when reading this guide:
In addition to these symbols, there are definitions for technical terms that are presented like this:
Also, each figure (diagram, screenshot, or other image) is provided with a figure number and description, like
this:
Figure numbers and descriptions can also be found in the "List of Figures" section in the “Table of Contents”.
This exclamation point means there is a Caution or
warning and is something that could damage your
property or the Access Point.
word: definition.
This checkmark means there is a Note of interest and
is something you should pay special attention to while
using the Access Point.
This question mark provides you with a reminder about
something you might need to do while using the Access Point.
Figure 0-1: Sample Figure Description
WAP55AG-V2-UG-41223NC BW

Dual-Band Wireless A + G Access Point
Table of Contents
Chapter 1: Introduction 1
Welcome 1
What’s in this Guide? 2
Chapter 2: Planning your Wireless Network 4
Network Topology 4
Roaming 4
Network Layout 5
Chapter 3: Getting to Know the Dual-Band Wireless A + G Access Point 6
The Back Panel 6
The Front Panel 7
Chapter 4: Connecting the Dual-Band Wireless A + G Access Point 8
Hardware Installation 8
Chapter 5: Setting Up the Dual-Band Wireless A + G Access Point 9
Setup Wizard 9
Chapter 6: Configuring the Dual-Band Wireless A + G Access Point 17
Overview 17
Navigating the Utility 17
Accessing the Utility 19
The Setup Tab 19
The Wireless Tab 20
The Wireless Tab - Basic Wireless Settings 20
The Wireless Tab - Wireless Security 22
The Wireless Tab - Wireless MAC Filter 24
The Wireless Tab - Advanced Wireless Settings 25
The Administration Tab - Password 28
The Administration Tab - Log 28
The Administration Tab - Factory Defaults 29
The Administration Tab - Firmware Upgrade 29
The Status Tab - Local Network 30
The Status Tab - Wireless 31
Appendix A: Troubleshooting 32
Frequently Asked Questions 32

Dual-Band Wireless A + G Access Point
Appendix B: Wireless Security 36
Security Precautions 36
Security Threats Facing Wireless Networks 36
Appendix C: Upgrading Firmware 39
Appendix D: Windows Help 40
Appendix E: Glossary 41
Appendix F: Specifications 45
Appendix G: Warranty Information 46
Appendix H: Regulatory Information 47
Appendix I: Contact Information 49

Dual-Band Wireless A + G Access Point
List of Figures
Figure 3-1: The Access Point’s Back Panel 6
Figure 3-2: Front Panel 7
Figure 5-1: The Setup Wizard’s Welcome Screen 9
Figure 5-2: Connect to the Router 9
Figure 5-3: Connect to the Ethernet Port 10
Figure 5-4: Connect to the Power 10
Figure 5-5: Check the LEDs 10
Figure 5-6: Select the Access Point 11
Figure 5-7: Enter the Password 11
Figure 5-8: Basic Settings 12
Figure 5-9: Wireless-A Settings 12
Figure 5-10: Wireless-A Security - WEP 13
Figure 5-11: Wireless-A Security - PSK 13
Figure 5-12: Wireless-G Settings 14
Figure 5-13: Wireless-G Security - WEP 14
Figure 5-14: Wireless-G Security - PSK 15
Figure 5-15: Confirm New Settings 15
Figure 5-16: Congratulations 16
Figure 6-1: Automatic Configuration - DHCP 19
Figure 6-2: Static IP Address 19
Figure 6-3: Basic Wireless Settings 20
Figure 6-4: WEP 22
Figure 6-5: Pre-Shared Key 22
Figure 6-6: Pre-Shared Key + Radius 23
Figure 6-7: Wireless MAC Filter 24
Figure 6-8: Wireless Client List 24
Figure 6-9: Advanced Wireless 25
Figure 6-10: Password 28

Dual-Band Wireless A + G Access Point
Figure 6-11: Log 28
Figure 6-12: Factory Defaults 29
Figure 6-13: Firmware Upgrade 29
Figure 6-14: Status - Local Network 30
Figure 6-15: Status - Wireless Network 30
Figure C-1: Upgrade Firmware 39

1
Chapter 1: Introduction
Welcome
Dual-Band Wireless A + G Access Point
Chapter 1: Introduction
Welcome
Thank you for choosing the Dual-Band Wireless A + G Access Point. This Access Point will allow you to network
wirelessly better than ever.
How does the Access Point do all of this? An access point allows for greater range and mobility within your
wireless network while also allowing you to connect the wireless network to a wired environment. Being a dual-
band access point, not only does the Access Point bring you these benefits, it also allows three wireless
standards, 802.11a, 802.11b and 802.11g, to communicate with each other. This means that PCs with different
wireless standards can communicate with each other and with a wired network.
But what does all of this mean?
Networks are useful tools for sharing computer resources. You can access one printer from different computers
and access data located on another computer's hard drive. Networks are even used for playing multiplayer video
games. So, networks are not only useful in homes and offices, they can also be fun.
PCs on a wired network create a LAN, or Local Area Network. They are connected with Ethernet cables, which is
why the network is called "wired".
PCs equipped with wireless cards and adapters can communicate without cumbersome cables. By sharing the
same wireless settings, within their transmission radius, they form a wireless network. This is sometimes called
a WLAN, or Wired Local Area Network. The Access Point bridges wireless networks of both 802.11g and 802.11b
standards and wired networks.
Use the instructions in this Guide to help you connect the Access Point, set it up, and configure it to bridge your
different networks. These instructions should be all you need to get the most out of the Access Point.
802.11b: a wireless networking standard that specifies
a maximum data transfer rate of 11Mbps and an
operating frequency of 2.4GHz.
802.11g: a wireless networking standard that
specifies a maximum data transfer rate of
54Mbps, an operating frequency of 2.4GHz, and
backward compatibility with 802.11b devices.
adapter: a device that adds network functionality to your PC
ethernet: network protocol that specifies how data is placed
on and retrieved from a common transmission medium
lan (local area network): the computers and networking
products that make up your local network
network: a series of computers or devices
connected together
802.11a: an IEEE wireless networking standard
that specifies a maximum data transfer rate of
54Mbps and an operating frequency of 5GHz.

2
Chapter 1: Introduction
What’s in this Guide?
Dual-Band Wireless A + G Access Point
What’s in this Guide?
This user guide covers the steps for setting up and using the Dual-Band Wireless A + G Access Point.
• Chapter 1: Introduction
This chapter describes the Dual-Band Wireless A + G Access Point’s applications and this User Guide.
• Chapter 2: Planning your Wireless Network
This chapter describes the basics of wireless networking.
• Chapter 3: Getting to Know the Dual-Band Wireless A + G Access Point
This chapter describes the physical features of the Access Point.
• Chapter 4: Connecting the Dual-Band Wireless A + G Access Point
This chapter instructs you on how to connect the Access Point to your network.
• Chapter 5: Setting Up the Dual-Band Wireless A + G Access Point
This chapter explains how to use the Web-Based Utility to configure the settings on the Access Point and how
to install the setup on the Access Point for the Linksys Wireless Guard.
• Chapter 6: Configuring the Dual-Band Wireless A + G Access Point
This chapter explains the use of the Access Point’s Web-based Utility.
• Appendix A: Troubleshooting
This appendix describes some frequently asked questions regarding installation and use of the Dual-Band
Wireless A + G Access Point.
• Appendix B: Wireless Security
This appendix explains the risks of wireless networking and some solutions to reduce the risks.
• Appendix C: Upgrading Firmware
This appendix instructs you on how to upgrade the Access Point’s firmware.
• Appendix D: Windows Help.
This appendix describes some of the ways Windows can help you with wireless networking.
• Appendix E: Glossary
This appendix gives a brief glossary of terms frequently used in networking.
• Appendix F: Specifications
This appendix provides the Access Point’s technical specifications.

3
Chapter 1: Introduction
What’s in this Guide?
Dual-Band Wireless A + G Access Point
• Appendix G: Warranty Information
This appendix supplies the Access Point’s warranty information.
• Appendix H: Regulatory Information
This appendix supplies the Access Point’s regulatory information.
• Appendix I: Contact Information
This appendix provides contact information for a variety of Linksys resources, including Technical Support.

4
Chapter 2: Planning your Wireless Network
Network Topology
Dual-Band Wireless A + G Access Point
Chapter 2: Planning your Wireless Network
Network Topology
A wireless network is a group of computers, each equipped with one wireless adapter. Computers in a wireless
network must be configured to share the same radio channel. Several PCs equipped with wireless cards or
adapters can communicate with one another to form an ad-hoc network.
Linksys wireless adapters also provide users access to a wired network when using an access point, such as the
Dual-Band Wireless A + G Access Point, or wireless router. An integrated wireless and wired network is called an
infrastructure network. Each wireless PC in an infrastructure network can talk to any computer in a wired
network infrastructure via the access point or wireless router.
An infrastructure configuration extends the accessibility of a wireless PC to a wired network, and may double the
effective wireless transmission range for two wireless adapter PCs. Since an access point is able to forward data
within a network, the effective transmission range in an infrastructure network may be doubled.
Roaming
Infrastructure mode also supports roaming capabilities for mobile users. Roaming means that you can move your
wireless PC within your network and the access points will pick up the wireless PC's signal, providing that they
both share the same channel and SSID.
Before enabling you consider roaming, choose a feasible radio channel and optimum access point position.
Proper access point positioning combined with a clear radio signal will greatly enhance performance.
infrastructure: a wireless network
that is bridged to a wired network via
an access point.
ad-hoc: a group of wireless devices
communicating directly with each other (peer-
to-peer) without the use of an access point.
roaming: the ability to take a wireless device
from one access point's range to another
without losing the connection.
ssid: your wireless network's name

5
Chapter 2: Planning your Wireless Network
Network Layout
Dual-Band Wireless A + G Access Point
Network Layout
The Dual-Band Wireless A + G Access Point has been designed for use with 802.11g and 802.11b products. With
802.11g products communicating with the 802.11b standard, products using these standards can communicate
with each other. The Access point is compatible with 802.11g and 802.11b adapters, such at the PC Cards for
your laptop computers, PCI Card for your desktop PC, and USB Adapters for when you want to enjoy USB
connectivity. These wireless products can also communicate with a 802.11g or 802.11b wireless PrintServer.
When you wish to connect your wired network with your wireless network, the Access Point’s network port can
be used to connect to any of Linksys's switches or routers.
With these, and many other, Linksys products, your networking options are limitless. Go to the Linksys website at
www.linksys.com for more information about wireless products.

6
Chapter 3: Getting to Know the Dual-Band Wireless A + G Access Point
The Back Panel
Dual-Band Wireless A + G Access Point
Chapter 3: Getting to Know the Dual-Band Wireless A + G
Access Point
The Back Panel
The Access Point's ports, where the power cord and network cable are connected, are located on the back panel.
Ethernet The Ethernet port connects to Ethernet network devices, such as a 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. Either press the Reset
Button, for approximately ten seconds, or restore the defaults from the Administration tab in
the Access Point's Web-Based Utility.
With these, and many other, Linksys products, your networking options are limitless. Go to the Linksys website at
www.linksys.com for more information about products that work with the Access Point.
Important: Resetting the Access Point will
erase all of your settings (Wireless Security,
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.
Figure 3-1: The Access Point’s Back Panel port: the connection point on a computer or networking
device used for plugging in cables or adapters

7
Chapter 3: Getting to Know the Dual-Band Wireless A + G Access Point
The Front Panel
Dual-Band Wireless A + G Access Point
The Front Panel
The Access Point's LEDs, where information about network activity is displayed, are located on the front panel.
Power Green. The Power LED lights up when the Access Point is powered on.
Wireless-A WLAN Green. When the WLAN LED is blinking, the Wireless-A network is operating.
Wireless-G WLAN Green. When the WLAN LED is blinking, the Wireless-G network is operating.
Ethernet Green. The Ethernet LED serves two purposes. If the LED is continuously lit, the Access Point
is successfully connected to a device through the Ethernet port. If the LED is flickering, it is an
indication of any network activity.
Figure 3-2: Front Panel

8
Chapter 4: Connecting the Dual-Band Wireless A + G Access Point
Hardware Installation
Dual-Band Wireless A + G Access Point
Chapter 4: Connecting the Dual-Band Wireless A + G
Access Point
Hardware Installation
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 PCs and wireless accessories.
2. Fix the direction of the antenna. Try to place it in a position that will best cover your wireless network.
Normally, the higher you place the antenna, the better the performance will be. The antenna's 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 router. The Access Point will then be connected to your wired Network.
4. Connect the AC Power Adapter to the Access Point's Power port and to an electrical outlet. 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 A + G
Access Point, for directions on how to set up the Access Point.
tcp/ip: a set of instructions PCs use to communicate
over a network.
HAVE YOU: Enabled TCP/IP on your PCs? PCs
communicate over the network with this
protocol. Refer to Appendix D: Windows Help
for more information on TCP/IP.
hardware: the physical aspect of
computers, telecommunications, and
other information technology devices
NOTE: If you are setting up an Infrastructure
Network, all of your wireless devices must be
in Infrastructure mode in order to function
within the network. Similarly, if your network
is an Ad-Hoc Network, all of your wireless
devices must operate in Ad-hoc mode in order
for all other wireless devices to communicate.

9
Chapter 5: Setting Up the Dual-Band Wireless A + G Access Point
Setup Wizard
Dual-Band Wireless A + G Access Point
Chapter 5: Setting Up the Dual-Band Wireless A + G
Access Point
Setup Wizard
This Setup Wizard will take you through all the steps necessary to set up and configure the Access Point.
1. Insert the Setup Wizard CD into your PC's CD-ROM drive. Your PC must be on your wired network to set up the
Access Point.
2. The Setup Wizard's Welcome screen should appear on your monitor. If it does not, this means the Setup
Wizard is not automatically running as it should. Start the Setup Wizard manually by clicking the Start button,
selecting Run, and typing d:\setup.exe (where "D" is your PC's CD-ROM drive). Click the Click Here to Start
button to continue this Setup Wizard. Clicking the User Guide button opened this User Guide. To exit this
Setup Wizard, click the Exit button.
3. The next screen shows how to start connecting the Access Point. Optimally, you should perform this setup
through a PC on your wired network. Connect one end of the network cable to your network switch or router.
Click the Next button to continue or Exit to exit the Setup Wizard.
Figure 5-1: The Setup Wizard’s Welcome Screen
Note: The Access Point will be set up in the Setup
Wizard through a wired network connection. You may
refer to Chapter 4: Connecting the Dual-Band Wireless
A + G Access Point.
Figure 5-2: Connect to the Router

10
Chapter 5: Setting Up the Dual-Band Wireless A + G Access Point
Setup Wizard
Dual-Band Wireless A + G Access Point
4. Connect the other end of the network cable to the Ethernet port on the back of the Access Point.
Click the Next button to continue, or the Back button to return to a previous screen.
5. Connect the power adapter to the Access Point’s Power port. Then connect the other end to an electrical
outlet. Only use the power adapter supplied with the Access Point. Use of a different adapter can cause
product damage.
Click the Next button to continue, or the Back button to return to a previous screen.
6. The Access Point’s LEDs should be lit. If not, re-check the connections.
Click the Next button to continue or Exit to exit the Setup Wizard.
Figure 5-4: Connect to the Power
Figure 5-3: Connect to the Ethernet Port
IMPORTANT: Make sure that you use the power
adapter that is supplied with the Access Point.
Use of a different power adapter could damage
the Access Point.
Figure 5-5: Check the LEDs

11
Chapter 5: Setting Up the Dual-Band Wireless A + G Access Point
Setup Wizard
Dual-Band Wireless A + G Access Point
7. The Setup Wizard will run a search for the Access Point within your network and then display a list along with
the status information for each access point. If there are more than one displayed, select the Access Point by
clicking on it and click the Next button to continue, the Back button to return to a previous screen, or Exit to
exit the Setup Wizard.
8. You will be asked to sign onto the Access Point you've selected. Enter the Password you've assigned. If none
has been assigned, enter the default password: admin. Then, click the Enter button. (This password can be
changed on the next screen.)
Figure 5-7: Enter the Password
Figure 5-6: Select the Access Point

12
Chapter 5: Setting Up the Dual-Band Wireless A + G Access Point
Setup Wizard
Dual-Band Wireless A + G Access Point
9. The Basic Settings screen will appear next. Enter the Device Name and new Password. Then, click the Next
button to continue or Back to return to the previous page.
• Device Name. The Device Name is a unique name given to the Access Point to prevent confusion when
using multiple Access Points.
• Password. Enter a new password that will be used to access the web-based utility or Setup Wizard.
• Network. Select Automatically if your network has a router or DHCP server. Select Static IP if your
network requires a static IP address.
• IP Address. This IP address must be unique to your network. (The default IP address is 192.168.1.246)
Leave the default IP address, unless you know your network’s IP address is different.
• Subnet Mask. The Access Point's Subnet Mask must be the same as your Ethernet network. Leave the
default Subnet Mask, unless you know your network’s subnet mask is different.
• Default Gateway. This IP address should be the IP address of the gateway device that allows for contact
between the Internet and the local network. Leave the default Default Gateway blank, unless you know
your network’s default gateway.
10. The Wireless-A Settings screen should now appear. Enter your wireless 802.11a network's SSID, select the
channel at which the network broadcasts its wireless signal, and select the security. 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.
All devices in your wireless network must broadcast on the same channel in order to communicate. If you
want the Router to automatically scan for a clear channel, then select Auto (DFS)
• SSID Broadcast. When wireless clients survey the local area for wireless networks to associate with, they
will detect the SSID broadcast by the Access Point. To broadcast the Access Point's SSID, keep the default
setting, Enabled. If you do not want to broadcast the Access Point's SSID, then select Disabled.
• Security. Two wireless security methods are available: WEP (Wired Equivalent Privacy) and PSK (Pre-
Shared Key), which is the stronger security method. Select WEP or PSK from the drop-down menu. All
devices in your wireless network must use the same security method.
Figure 5-9: Wireless-A Settings
ip address: the address used to identify a computer or
device on a network
gateway: a device that interconnects networks with
different, incompatible communications protocols
Figure 5-8: Basic Settings

13
Chapter 5: Setting Up the Dual-Band Wireless A + G Access Point
Setup Wizard
Dual-Band Wireless A + G Access Point
11. The next screen that appears will depend on your security selection. Make sure that the security mode is the
same for all the devices on your network.
• WEP. From this screen, select the level of encryption, and enter a passphrase, which will generate the
WEP key for you automatically, or you can enter the key manually.
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 for 152-bit encryption.
• PSK (Pre-Shared Key) you have two encryption options, TKIP and AES, with dynamic encryption keys.
Select the type of algorithm, TKIP or AES. Enter a Passphrase of 8-32 characters.
Then, click the Next button to continue or Back to return to the previous page.
For more information on wireless security, refer to Appendix B: Wireless Security.
Figure 5-10: Wireless-A Security - WEP
Figure 5-11: Wireless-A Security - PSK
bit: a binary digit
encryption: encoding data transmitted in a network

14
Chapter 5: Setting Up the Dual-Band Wireless A + G Access Point
Setup Wizard
Dual-Band Wireless A + G Access Point
12. The Wireless-G Settings screen should now appear. Enter your wireless 802.11g network's SSID, select the
channel at which the network broadcasts its wireless signal, and select the security. 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. All points in your wireless network must use the same channel in order to function
correctly.
• SSID Broadcast. When wireless clients survey the local area for wireless networks to associate with,
they will detect the SSID broadcast by the Access Point. To broadcast the Access Point's SSID, keep the
default setting, Enabled. If you do not want to broadcast the Access Point's SSID, then select Disabled.
• Security. Two wireless security methods are available: WEP (Wired Equivalent Privacy) and PSK (Pre-
Shared Key), which is the stronger security method. Select WEP or PSK from the drop-down menu. All
devices in your wireless network must use the same security method.
13. The next screen that appears will depend on your security selection. Make sure that the security mode is
the same for all the devices on your network.
• WEP. From this screen, select the level of encryption, and enter a passphrase, which will generate the
WEP key for you automatically, or you can enter the key manually.
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.
Figure 5-13: Wireless-G Security - WEP
Figure 5-12: Wireless-G Settings