Iwconfig
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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.
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] Current Status
Iwconfig is part of the Wireless tools for Linux package maintained by Jean Tourrilhes and sponsored by Hewlett-Packard.
