iwconfig

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 It has been suggested that this article or section be merged into Wireless tools for Linux. (Discuss)

iwconfig is similar to ifconfig, but is dedicated to wireless networking interfaces. It is used to set the parameters of the network interface which are specific to the wireless operation (eg. frequency, SSID). iwconfig may also be used to display those parameters, and the wireless statistics (extracted from /proc/net/wireless). It works in tandem with iwlist, which generates lists of available wireless networks. Iwconfig is part of the Wireless tools for Linux package maintained by Jean Tourrilhes and sponsored by Hewlett-Packard. Due to the relative complexity of requiring two separate commands to find and sync with a wireless access point, some [1]recommend using frontends provided by GNOME and KDE, or an application called NetGo, to manipulate these settings.

In the free Berkeley Software Distribution UNIX operating systems, the role of iwconfig is performed by an expanded ifconfig command.


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[edit] Sample iwconfig output

The following command displays information about the currently associated wireless network.

$ iwconfig eth1

eth1      IEEE 802.11g  ESSID:"OSU_PUB"  
         Mode:Managed  Frequency:2.427 GHz  Access Point: 00:0D:9D:C6:38:2D   
         Bit Rate=48 Mb/s   Tx-Power=20 dBm   Sensitivity=8/0  
         Retry limit:7   RTS thr:off   Fragment thr:off
         Power Management:off
         Link Quality=91/100  Signal level=-39 dBm  Noise level=-87 dBm
         Rx invalid nwid:0  Rx invalid crypt:860  Rx invalid frag:0
         Tx excessive retries:0  Invalid misc:39   Missed beacon:8

[edit] References

  1. ^ Linux Journal Marcel Gagne's Cooking With Linux 2005-07-28 edition, http://www.linuxjournal.com/node/8355/print

[edit] See also

[edit] External links

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