Difference between revisions of "User:Earnest/wpa supplicant"

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(Configuration)
(Configuration)
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{{ic|wpa_supplicant}} and {{ic|wpa_passphrase}} can be combined to easily associate with most WPA2 networks:
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Now both {{ic|wpa_supplicant}} and {{ic|wpa_passphrase}} can be combined to associate with almost all WPA2 (Personal) networks:
 
  # wpa_supplicant -B -i [interface] -c <(wpa_passphrase [essid] [passphrase])
 
  # wpa_supplicant -B -i [interface] -c <(wpa_passphrase [essid] [passphrase])
 +
All that remains is to simply connect using a [[Network Configuration#Static_IP_Address|static IP]] or [[Network Configuration#Dynamic_IP_Address|DHCP]]. For example:
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# dhcpcd -A [interface]
  
 
===Maintaining a custom configuration===
 
===Maintaining a custom configuration===
 +
As discussed above we can make use of {{ic|wpa_passphrase}} to generate a basic configuration which we can augment with additional networks and options of our choosing. This may be necessary for more advanced networks employing extensive use of [https://en.wikipedia.org/wiki/Extensible_Authentication_Protocol EAP]
  
 
==Also See==
 
==Also See==

Revision as of 17:53, 13 May 2013

wpa_supplicant is a cross-platform WPA Supplicant with support for WPA and WPA2 (IEEE 802.11i / RSN (Robust Secure Network)). It is suitable for both desktop/laptop computers and embedded systems. wpa_supplicant is the IEEE 802.1X/WPA component that is used in the client stations. It implements key negotiation with a WPA Authenticator and it controls the roaming and IEEE 802.11 authentication/association of the wlan driver.

Installation

Install wpa_supplicant from the official repositories.

Optionally wpa_supplicant_gui can be installed which provides wpa_gui; a graphical frontend for wpa_supplicant using the qt4 toolkit.

Configuration

wpa_supplicant provides a reference configuration file located at /etc/wpa_supplicant/wpa_supplicant.conf which contains detailed documentation for the all available options and their utilisation.

In it's simplest form all the configuration file requires is a network block, for example:

/etc/wpa_supplicant/foobar.conf
network={
    ssid="..."
  }

This can easily be generated using the wpa_passphrase tool. For example:

$ wpa_passphrase foobarssid foobarspassword
network={
   ssid="foobarssid"
   #psk="foobarspassword"
   psk=f5d1c49e15e679bebe385c37648d4141bc5c9297796a8a185d7bc5ac62f954e3
}

Now both wpa_supplicant and wpa_passphrase can be combined to associate with almost all WPA2 (Personal) networks:

# wpa_supplicant -B -i [interface] -c <(wpa_passphrase [essid] [passphrase])

All that remains is to simply connect using a static IP or DHCP. For example:

# dhcpcd -A [interface]

Maintaining a custom configuration

As discussed above we can make use of wpa_passphrase to generate a basic configuration which we can augment with additional networks and options of our choosing. This may be necessary for more advanced networks employing extensive use of EAP

Also See

TODO

  • Add more practical examples? (wpa_supplicant.conf already lists many.)