Configuring Wireless Networking

1
Configuring Wireless Networking
2
Wi-Fi and HomeRF

• Install a wireless network adapter the same way
  as a wired adapter
• Check Windows Device Manager after installation

3
Configuring Ad-Hoc Mode

• Each wireless node must use the same network name
  (SSID)
• No two nodes can have the same IP address
• Ensure that File and Printer Sharing is running
  on all nodes

4
Ad-Hoc Mode
5
Configuring Infrastructure Mode

• Configure the same SSIC on all nodes and the
  access point
• You may also configure DHCP options, filtering,
  client channels, and more

6
Access Point Configuration

• Uses a browser-based setup utility
• Point web browser to 192.168.1.1 and use the
  administrative password given in the
  documentation
• Various configuration options will be available
  such as SSID and whether to broadcast it

7
Access Point Configuration
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Configuring MAC Filtering
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Configuring Encryption
10
Encryption on Wireless NIC
11
Bluetooth Hardware

• Comes integrated with many devices today
• To add Bluetooth capabilities you usually need to
  install an adapter
• Follow the instructions which usually require you
  to install your driver and configuration utility
  first
• Bluetooth devices seek each other out and
  establish master/slave relationships automatically

12
Connecting to PAN
iPAQ Bluetooth Manager software connected to
Bluetooth access point
13
Bluetooth Access Point
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Troubleshooting Wireless Networks
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Scope of Problem

• Who is affected by the problem?
• Try to isolate whether the problem relates to a
  few client machines or to an access point
• What is the nature of their network problem?
• Can some network services to accessed while
  others cannot? Then the problem is most likely
  not related to their client equipment
• When did the problem start?
• What changed?

16
Wi-FI and HomeRF

• Hardware
• Check Device Manager for resource conflicts
• Try reinstalling the device driver
• Software
• USB devices usually require that you first
  install the software before the hardware
• Update the devices firmware version to the latest

17
Connectivity

• Check the link light
• Check the configuration utility for link state
  and signal strength
• There could be interference or a weak signal

18
Configuration

• Check your SSID and WEP configuration for typos
• Watch for blank spaces at the end of a SSID
• Make sure the MAC address of the client is on the
  list of accepted users
• Make sure the encryption strength matches

19
Bluetooth

• Hardware
• Check for detection, driver or resource errors
• Make sure the device is seated properly
• Some newer Bluetooth devices only work with USB
  2.0
• Check Device Manager
• Software
• Always check the documentation before installing
  Bluetooth devices sometimes steps may not be
  performed out of order
• Only Windows XP (with service pack 1) and Apple
  OSX offer native support for Bluetooth

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Connectivity Configuration

• Check the configuration utility
• Remember Bluetooth range is limited to 30 feet
• Shut down other Bluetooth devices in the same
  area to see if there is interference
• Make sure all device use the same profile
• Check to see if non-discovery mode has been
  enabled
• Check the password or PIN
• Check the power-saving settings