Lab' 6 Wireless Local Area Networks WLAN

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Lab. 6Wireless Local Area Networks (WLAN)

• Seonghoon Jeong

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Pre-Lab

• Objectives
• Understanding of fundamentals of WLAN
• Investigate the WLANs surrounding you

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Pre-Lab 1. Basic Understanding of WLAN

• CSMA/CA with RTS/CTS
• Beacon frame
• BSS, IBSS, SSID, BSSID
• Benefit of using a RTS/CTS handshake
• ISM band

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Pre-Lab 2. Investigate surrounding wireless-lan
networks

• Tool
• Net stumbler 0.4.0
• Downloadable from http//stumbler.net.
• Mission
• Draw WLAN channel profiles
• measurement locations / signal strength /
  noise strength and others should be specified
• The use of each measurement metric should be
  justified by your explanation

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Background

• Ipconfig /all
• Identify IP address and mac (physical) address

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Main Lab

• Objectives
• Capture and decode WLAN frame
• Understand the operation of WLAN
• Understand the network architecture

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ANYPA-WLAN

• Protocol Capture and Decoding
• Protocol Statistics
• Management Frame
• Control Frame
• Data Frame
• Channel Statistics
• Node Matrix
• Real time Traffic analysis

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Install Device Software

• Install acrowave wlan device driver
• Insert driver CD and install device driver and
  select acrowave wlan
• Install ANYPA-WLAN
• Replace driver file
• Replace original wlan device driver file with the
  one provided by ANYPA-WLAN
• copy prismnds in C\Program Files\CC
  Instruments\ANYPA-WLAN Sr\Drivers\XP to
  C\WINDOWS\system32\drivers
• When you try to copy the file, you will be given
  a question whether to overwrite the file. Press
  yes to confirm to overwrite it.

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Run ANYPA-WLAN

• Run ANYPA-WLAN Sr

If this icon is activated, then device
software are successfully installed
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Any Question?

• T.A. Contact
• Use the bulletin board for any question related
  to the experiment
• http//cnr.kaist.ac.kr/zboard/zboard.php?idTE523_
  2006
• TA E-mail
• j_s_hoon at cnr.kaist.ac.kr