Cisco Aironet 802.11abg Wireless LAN Adapter

8/3/2019 Cisco Aironet 802.11abg Wireless LAN Adapter

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Cisco Aironet 802.11 a/b/gWireless LAN Adapter

Setup Guide

Cisco Aironet 350 Series Wireless LAN Adapter Setup Guide Page 1 of 7


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1. IntroductionThis document describes the setup of Cisco Aironet 802.11a/b/g Wireless Adapter for Windows 2000and Windows XP.

Cisco Aironet 802.11 a/b/gSupports 802.11b - 2.4GHz at 11Mbps, configured with Aironet Client Utility (ACU).

The card uses LEAP authentication, which is a secured form of wireless transmission.You can check the model of the wireless card by looking at the back of the wireless card.If your card is Cisco Aironet AIR-CB21AG-W-K9 Series, please refer to the guide for Cisco AironetAIR-CB21AG-W-K9 Wireless LAN Adapter Setup Guide

Note:

1. Before you proceed with the wireless setup mentioned below, please ensure that you are ableto JOIN the NUS Domain. If you have not joined the NUS Domain and if you need help in

joining the NUS domain, please refer to the NUSNET JOIN Domain guide available at thehttps://network.nus.edu.sg/starterkit/#NUSUTIL

2. Installing Drivers and ACUThe setup program will install and configure the following:

Cisco Aironet 350 Wireless LAN Adapter driver

Aironet Client Utility (ACU)

ACU profile for NUS wireless network

Step 1 Download the file from:https://network.nus.edu.sg/starterkit/downloads/nus/nusaduabg.exe

Step 2 Double click nusaduabg.exe to launch the setup program. Click Next to start.



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Step 3 If you have inserted your Cisco wireless PC card, eject the card and click Continue.

Step 4 When you see the screen below, insert your Cisco wireless PC card, then click OK.

Step 5 Setup will detect the inserted card and continue with the installation.



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Step 6 You will be required to restart the computer at the end of the installation.

Step 7 Logging in to the NUS Wireless Network

Windows 2000, Windows XP Professional

After you have joined domain, login to your computer using your NUSNET account.

Windows XP Home

If you are unable to join your computer to NUS domain, you need to create a user account in yourcomputer with the same User Id and password as your NUSNET account.

After creating the account, login to your computer using this account.To create a computer account, please click on Start -> Control Panel -> User Accounts.



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3. FAQ (Frequently Asked Question)Q1: What is an Access Point, wireless card, etc?Ans: These terms are explained below:

Wireless Access PointCalled AP in short or referred to as wireless Base Station.

Wireless PC CardThis is also called wireless PCMCIA card, wireless LAN adapter or simply wireless card.

A notebook computer installed with a wireless card is able to access the Local AreaNetwork (LAN) by communicating with the AP. The AP is a wireless LAN transceiver.When the notebook is within radio range (approximately 60 metres) of an AP, it can roamthroughout the premise while maintaining uninterrupted access to the network.

Service Set Identifier (SSID)An identifier attached to packets sent over the wireless LAN that functions as a"password" for joining a particular wireless network. All wireless cards and Access Pointswithin the same wireless network must use the same SSID, or their packets will beignored.

Lightweight Extensible Authentication Protocol (LEAP)A Cisco wireless authentication protocol that ensure mutual authentication between awireless client and a back end Access Control Server (RADIUS) server. Communicationbetween the Access Point and the Access Control Server is via a secure channel. Inaddition, it provides a dynamic per-user, per-session encryption key generationmechanism.



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Q2: What is the coverage of the wireless Access Point (AP)?Ans: The extent of the wireless coverage is approximately 60 metres from the Access Point.

Q3: What are some of the factors that will affect AP's coverage?Ans: The Access Points are radio devices and they are susceptible to RF (radio frequency)

obstructions and common sources of interference that can reduce throughput and range:

Physical EnvironmentClear or open areas provide better radio range than closed or filled areas. Also, the lesscluttered the work environment, the greater the range. Microwave ovens and 2-GHzcordless phones can cause signal interference because they operate in the samefrequency range as the Access Point.

ObstructionsA physical obstruction such as metal shelving or a steel pillar can hinder performance ofwireless devices. Avoid locating the devices in a location where there is a metal barrierbetween the sending and receiving antennas.

Building Materials

Radio penetration is greatly influenced by the building material used in construction. Forexample, drywall construction allows greater range than concrete blocks. Large steelstructures such as shelving units, bookcases, filing cabinets, metal and steel constructionare a barrier to radio signals.

Q4: What are the setup requirements?Ans: The setup depends on the following:

Whether your are NUS Staff, Student or Visitor

The operating system

The type of wireless card used

For wireless card not loaned from NUS, please refer to the product manual to determine if

the card support ALL three radio channels (frequencies) 1 (2412MHz), 6 (2437MHz)and 11 (2462MHz). The Access Points in NUS are configured with channel 1, 6 and 11 ina distributed fashion. Check with the shop that sells the card or the product's website tosee if firmware upgrade is available to activate channels 1, 6 and 11. Alternatively, youcan borrow a Cisco wireless card from the NUS loan counters if your card does notsupport all three channels.

Q5: How do I reinstall or upgrade the wireless PC card driver and ACU?Ans: From Control Panel > Add/Remove Programs, uninstall the existing ACU. After that,

restart your computer and run the setup again.

Q6: What if my connection and login fails?Ans: Follow Q5 above to reinstall the drivers and software.



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Q7: How to troubleshoot using the wireless card's indicator LEDs?Ans: The wireless card shows messages and error conditions through its two LEDs:

Link Integrity/Power LED (Green)This LED lights when the client adapter is receiving power and blinks slowly when theadapter is linked with the network.

Link Activity LED (Amber)This LED blinks quickly when the client adapter is receiving or transmitting data andblinks in a repeating pattern to indicate an error condition.

Green LED Amber LED Condition

Off Off Client adapter is not receiving power or an error hasoccurred.

Blinking quickly Blinking quickly Power is on, self-test is OK, and client adapter isscanning for a network.

Blinking slowly Blinking quickly Client adapter is associated to an Acess Point.Continuously on or

blinking slowly

Blinking Client adapter is transmitting or receiving data while

associated to an Access Point.Off Blinking quickly Client adapter is in power save mode.On Blinking quickly Client adapter is in ad hoc mode.Off On Driver installed incorrectly.Off Blinking in a pattern Indicates an error condition.

Q8: I am having problems with my wireless card, where can I get help?Ans: For further support, please email NUS IT Care at [email protected].


Documents

Cisco Aironet 802.11abg Wireless LAN Adapter