*5 Days Training Course*
Certified Wireless Network Administrator
 
 28 February - 4 March 2005
Sydney Convention Centre
 


Hands-on Lab Exercises

Lab 1 - Infrastructure Mode Connectivity

This exercise demonstrates wireless client devices connecting to an access point. Students configure the access point, wireless stations, and view the association table in the access point in order to understand the process a client goes through to become connected to the network. RF output power is explained and client utilities are viewed to show RF signal quality and strength. Access point features, authentication, association, and encryption are all discussed and demonstrated. 802.11a/b/g technologies are each shown independently to demonstrate channel usage and spread spectrum technologies.

Lab 2: Infrastructure Mode Throughput Analysis

This exercise demonstrates the expected throughput achievable from a wireless station to a wired station and a wireless station to a wireless station using FTP and throughput measuring software. The point of this lab is for the student to understand the half-duplex nature of wireless LANs and how the data rate relates to actual throughput in a real-world scenario. Access point frame relay is proven and explained.

   
QUICK LINKS
Lab 1: Infrastructure Mode Connectivity
Lab 2: Infrastructure Mode Throughput Analysis
Lab 3: Ad Hoc Connectivity and Throughput Analysis
Lab 4: Cell Sizing and Automatic Rate Selection (ARS) in an Infrastructure Environment
Lab 5: Co-Channel and Adjacent Channel Interference
Lab 6: Rudimentary Security Features
Lab 7: Dynamic WEP Keys and Mutual Authentication using 802.1x/EAP and RADIUS
Lab 8: Wireless VPNs using PPTP tunnels and RADIUS

About the Course
Course Outline
Hands-on Lab Excercises
About the Trainer
Wireless 2005
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Telephone:
+61 2 8920 2547
 

Lab 3: Ad Hoc Connectivity and Throughput Analysis

In this exercise, wireless clients will connect to each other without use of an access point. Beaconing and channel configuration in an Ad Hoc environment will be explained and throughput will be analysed and compared against an infrastructure environment. Use of SSIDs, WEP/WPA, channels, and other connectivity factors will be discussed and demonstrated.

Lab 4: Cell Sizing and Automatic Rate Selection (ARS) in an Infrastructure Environment

In this exercise, RF cell sizing and ARS will be demonstrated. Cell sizing is important for seamless connectivity while roaming and for security purposes. ARS is the wireless LAN client's ability to increase or decrease the data rate of the wireless connection in order to maintain optimum connectivity with the access point. Environmental factors will be analysed. A basic site survey will be performed during this lab exercise using 802.11a/b/g technologies.

Lab 5: Co-Channel and Adjacent Channel Interference

In this exercise, the effects of co-channel and adjacent channel interference are demonstrated and explained. Throughput tests using FTP and throughput measurement software are performed using fully overlapping, partially overlapping, and non-overlapping channels. Effects are analysed and compared for DSSS and OFDM environments.

Lab 6: Rudimentary Security Features

In this exercise, the security features that are specified in the IEEE 802.11 standard and the new WPA 1.0 interoperability standard are demonstrated in a mobile environment. Wireless clients attempt roaming between access points while using like and different Service Set Identifiers (SSIDs), MAC filters, Wired Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA) using Pre-shared Keys (WPA-PSK). Configuration, use, and security issues are discussed, explained, and demonstrated in 802.11a/b/g environments.

Lab 7: Dynamic WEP Keys and Mutual Authentication using 802.1x/EAP and RADIUS

The need for wireless security stronger than that, which is available in static WEP or WPA-PSK, is explained. Port-based access control with EAP authentication is also demonstrated and explained. Cisco's proprietary Lightweight EAP is used with RADIUS for scalability of authentication. The 802.1x/LEAP association process is analysed and rotating unicast and broadcast keys are explained. User-based authentication is demonstrated and compared to MAC-based authentication used in the 802.11 standard.

Lab 8: Wireless VPNs using PPTP tunnels and RADIUS

In this exercise, the access point is the VPN tunnel server and the PPTP VPN client software built into Microsoft Windows is used to establish an encrypted VPN tunnel from the wireless client to the access point. The access point then sends the authentication request to a RADIUS server and a tunnel is established. Use of the PPTP protocol with encryption in a wireless environment is discussed and explained.


  
 
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