ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 1 Wireless Client Installation Developed by: Tomas Krag, wire.less.dk.

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Presentation transcript:

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 1 Wireless Client Installation Developed by: Tomas Krag, wire.less.dk (Linux) Bruno Roger, ESMT (Windows)

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 2 Goals To be able to make a good choice in terms of wireless hardware for Linux platforms To be able to successfully install a wireless client with or without native Linux support To be able to configure any wireless client (Linux/Win32) according to the settings in any AP

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 3 Table of Contents Introduction PART A: Linux PART B: Windows –Choosing a wireless device –Installing the wireless device –Configuring the wireless device

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 4 Introduction ● Linux vs Windows: hardware support ● A machine with a wireless networking card installed is needed ● PC-cards (laptops) and Mini-PCI cards (laptops) ● PCI cards (desktops) and USB adapters

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 5 PART A: LINUX 1. Wireless Hardware 2. Installation 3. Configuration

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 6 1. Wireless Hardware Wireless Network Cards Chipsets Supported or not? Drivers

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 7 Wireless Networking Hardware Desktops have PCI or ISA slots inside for additional components –Need tools –Must open the PC, install card, close and power on

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 8 Wireless Networking Hardware Laptops use PCMCIA slots –Slim card common to all laptops –Easy to plug-in, hotplug Recent laptops have wireless included –Mini-PCI slot inside (backplane) –Intel-M Centrino technology PCMCIA cards are more expensive than PCI cards

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 9 Wireless Networking Hardware USB devices are cheap, hotplug, and common to desktops and laptops External aspect like a USB memory key Plug in USB port without turning of the PC

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 10 Hardware Chipsets Drivers are typically written for a specific wireless chipset, and will work with any card that uses that chipset Common chipsets include –Atheros (madwifi) –Intel Pro/Wireless 2100 & 2200 (ipw2100/ipw2200) –Prism2/2.5/3 (hostap driver) –Orinoco (orinoco_cs) –Ralink –Broadcom

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 11 Linux Distributions Each Linux distribution has a list of supported hardware Each distribution will support some (but not all) devices by default If you have the option, choose a card that is supported by your distribution

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 12 Unsupported Hardware If your hardware is not supported by your distribution –Choose different hardware or distro –See if a card with the same chipset is supported –Search support forums of distribution –Use vendor-supplied driver –Use windows driver through ndiswrapper or linuxant driverloader compatibility layer

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 13 Driver Differences linux-wlan-ng driver: does not support wireless-tools, and is not supported by many wireless utilities orinoco_cs driver does not support scanning for networks unless patched and recompiled

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 14 Driver Differences madwifi (atheros chipset) is the only driver that supports multiband (802.11a/b/g) under linux hostap and madwifi drivers have good support for running a wireless access point ( Master mode

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 15 2: Installation of wireless device

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 16 Preparing for the installation Always check your distributions hardware support database Google for the card name and the name of your distribution (i.e. Linksys WPC54g Ubuntu). See what people have to say. Install the package wireless-tools using your distributions package manager Read card manual (search for Linux) Insert card and see what happens

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 17 If it just works To find out it just works use your distributions network manager interface Ubuntu (Warty Release) with Atheros card:

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 18 If it fails to work Identify the chipset on your hardware Use distribution support forum/maillist/wiki Identify potential drivers for your card –Use tools to identify chipset –Search for card in chipset list Use driver support forum/maillist/wiki See if there is a packaged driver available for your distribution (using package manager)

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 19 Identifying the Card Use command-line tools to identify card –lspci (for PCI and mini-PCI) –cardctl ident (for pcmcia) –hal-device-manager (for all types) –usbview (for usb) –dmesg (for all hardware) Look at –

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 20 Example 1: Installation of Linksys WPC54G on Ubuntu (Warty Release)

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ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 27 Loading ndiswrapper Download windows driver $ wget ftp://....../drivername.zip Unzip $ unzip drivername.zip Install windows driver (as root user) # ndiswrapper -i filename.inf List devices (as root user) # ndiswrapper -l load kernel module (as root) # modprobe ndiswrapper make changes permanent (see docs for your distro) # ndiswrapper -m # echo ndiswrapper >> /etc/modules

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 28 Various drivers hostap for prism2/2.5/3: Madwifi: Orinoco: ndiswrapper: Intel wireless/PRO 2100: Intel wireless/PRO 2200: prism54: Cisco airo: Ralink: More info

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 29 3: Configuring the wireless device

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 30 Configuration Once the driver is installed, you need to configure the network –Setup essid (name of wireless network) –Choose DHCP or static IP address –WEP Security Key –Activate network

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 31 Example 2: Configuring Ubuntu with GNOME Should be the same on many Gnome based Distributions

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 32 Open GNOME network-admin Menu –Computer System Configuration –Networking Enter password

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ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 42 Example 3: Other GUI Tools New tools are being developed all the time...

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 43 Red-Hat NetworkManager

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 44 Gnome netapplet

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 45 wifi_radar

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 46 Example 4: The command line When everything else fails....

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 47 iwconfig ath0

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 48 iwlist ath0 scan

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 49 sudo dhclient ath0

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 50 iwconfig ath0

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 51 PART B: WINDOWS 1. Wireless Hardware 2. Installation 3. Configuration

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger Wireless Hardware Support for Windows is trivial

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger Installation of wireless device

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 54 Windows Version? Windows XP ● Most drivers are included ● Plug in wireless adapter and let software detect ● SP2 ● Windows 2000 ● Plug and play, driver database is often not up to date. ● Need additional software or internet connection (wired) to download

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 55 Windows Version? Windows NT, 95/98 ● No USB support on NT and 95 ● Manual install required for 98 ● Consider updating your OS ● See “Win98 Wireless Client Installation”

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger Configuring the wireless device Select network to associate with –SSID, broadcasted or not? WEP encryption –On/off IP parameters –DHCP or static IP

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 57 Configuration Management Tools Windows ( XP wireless manager) –Used in this example Vendor specific Disable one of them as conflict can arise

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 58 Step 1: Select Network Will connect to AP providing the best signal –Confirm connection to a non-encrypted network Wireless networks detected in notification area Select among available wireless networks

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 59 Available Wireless Networks Status message Signal strength SSID Encryption

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 60 Associating with AP Select SSID WEP encryption = Golden lock

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 61 WEP Encryption Enter WEP key (identical to AP WEP key)

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 62 Status Message Status message of connection –Connected: Configuration completed –Authentication did not succeed

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 63 Authentication did not succeed Select Change the order of preferred networks (in the list of Related tasks) ● Select the tab Wireless Networks from the properties of your wireless network adapter ● Click on the name of your wireless network (SSID) in Preferred networks. ● Click Properties

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 64 Manual Configuration

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 65 Manual Configuration ● Network Authentication: Open ● Type WEP key (twice) ● Select the key index (encryption key memory position in AP) ● Click OK twice (apply changes in wireless network and wireless network adapter)

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 66 Step 2: IP settings IP address Subnet mask Gateway DNS

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 67 IP settings DHCP –# ipconfig –# ipconfig /release all –# ipconfig /renew Manually set IP address –Start > Control Panel > Network Connections –Wireless Network Connection > Properties –General > Internet Protocol (TCP/IP) >Properties

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 68 Manually set IP parameters

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 69 Conclusions: Linux Check for support in your Linux distribution before buying a wireless card Use the Internet to find out about “known issues” Read users Forum and learn from others

ItrainOnline MMTK Last updated: 23 April 2006 T. Krag, B. Roger 70 Conclusions: Windows Make sure that only one configuration manager is running to avoid conflicts Make sure that the radio is switched on (in laptop) Make sure that you have the right IP parameters for the AP that you want to connect to Make sure that you connect to the “right” network as Windows will choose the AP with the strongest signal (non-encrypted)