IWCONFIG(8) Linux Programmer's Manual IWCONFIG(8) (NAME) iwconfig - (SYNOPSIS) iwconfig [interface] iwconfig interface [essid X] [nwid N] [mode M] [freq F] [channel C] [sens S] [ap A] [nick NN] [rate R] [rts RT] [frag FT] [txpower T] [enc E] [key K] [power P] [retry R] [modu M] [commit] iwconfig --help iwconfig --version (DESCRIPTION) iwconfig ifconfig(8) . ( : ) . iwconfig ( /proc/net/wireless) . . . . (PARAMETERS) essid ESSID ( - Domain ID ) . ESSID . AP NWID ESSID (Repeaters) ( ). ESSID ( ESSID) off any ( on ). ESSID (off on any) -- (escape) . : iwconfig eth0 essid any iwconfig eth0 essid "My Network" iwconfig eth0 essid -- "ANY" nwid (Network ID) . ( ) . 802.11 802.11 ESSID AP . (NWID / ) off ( on ). : iwconfig eth0 nwid AB34 iwconfig eth0 nwid off nick[name] (Nickname) . 802.11 (MAC, IP, TCP) . . : iwconfig eth0 nickname "My Linux Node" mode . Ad-Hoc ( / Access Point) Managed ( ) Master ( ) Repeater ( ) Secondary ( Master/Repeater ) Monitor ( ) Auto . : iwconfig eth0 mode Managed iwconfig eth0 mode Ad-Hoc freq/channel . 1000 1000 (Hz) . k M G ( "2.46G" 2.46 ) '0' . 1 iwlist(8) . / . Managed (Access Point) . Ad-Hoc . off auto ( ). : iwconfig eth0 freq 2422000000 iwconfig eth0 freq 2.422G iwconfig eth0 channel 3 iwconfig eth0 channel auto ap (Access Point) . (Cell identity) MAC . (Point to Point) . Ad-Hoc Ad-Hoc . ( ). off any auto . : iwconfig eth0 ap 00:60:1D:01:23:45 iwconfig eth0 ap any iwconfig eth0 ap off rate/bit[rate] (Bit-rate) (b/s) . (Overhead) . k M G ( : 10^3 10^6 10^9 ) '0' . 1000 . auto ( ) fixed . auto . : iwconfig eth0 rate 11M iwconfig eth0 rate auto iwconfig eth0 rate 5.5M auto txpower (Transmit power) dBm . W dBm P = 30 + 10.log(W). mW dBm . on off auto fixed ( ). : iwconfig eth0 txpower 15 iwconfig eth0 txpower 30mW iwconfig eth0 txpower auto iwconfig eth0 txpower off sens (Sensitivity threshold) . ( ) . dBm . . / (Handover/Roaming) . . (Missed beacons) . AP . (Defer threshold) / . . (Receive threshold) . . . : iwconfig eth0 sens -80 iwconfig eth0 sens 2 retry MAC (Retry) . limit `' . ( ) . MAC lifetime `' . m u . short long min max . (Limit) (Lifetime) . 802.11 min limit ( RTS/CTS) . : iwconfig eth0 retry 16 iwconfig eth0 retry lifetime 300m iwconfig eth0 retry short 12 iwconfig eth0 retry min limit 8 rts[_threshold] RTS/CTS (Handshake) . (Hidden nodes) . RTS . auto fixed off . : iwconfig eth0 rts 250 iwconfig eth0 rts off frag[mentation_threshold] (Fragmentation) IP . . . Frame Bursting ( IP ) . . auto fixed off . : iwconfig eth0 frag 512 iwconfig eth0 frag off key/enc[ryption] . XXXX-XXXX-XXXX-XXXX XXXXXXXX . [index] () ( ). s: (ASCII) . (Passphrase) . [index] ( ) . off on . open restricted . open restricted . key . . : iwconfig eth0 key 0123-4567-89 iwconfig eth0 key [3] 0123-4567-89 iwconfig eth0 key s:password [2] iwconfig eth0 key [2] iwconfig eth0 key open iwconfig eth0 key off iwconfig eth0 key restricted [3] 0123456789 iwconfig eth0 key 01-23 key 45-67 [4] key [4] power (Power management) . period `' . () timeout `' . saving `' . min max . m u . ( /dwell ). off on . all ( ) unicast ( /Unicast ) multicast ( /Multicast /Broadcast ) . : iwconfig eth0 power period 2 iwconfig eth0 power 500m unicast iwconfig eth0 power timeout 300u all iwconfig eth0 power saving 3 iwconfig eth0 power off iwconfig eth0 power min period 2 power max period 4 modu[lation] . 802.11b 802.11g . . (Interoperability) . / iwlist modulation . / . auto / . : iwconfig eth0 modu 11g iwconfig eth0 modu CCK OFDMa iwconfig eth0 modu auto commit Wireless Extensions ( ifconfig ). ( ) . . (DISPLAY) (Wireless Extensions) iwconfig MAC ( ) ESSID ( ) NWID ( ) (Access Point) RTS (fragmentation threshold) ( ) . . / ( ). iwlist(8) . ( bitrate). `=' `:' ( ). Access Point/Cell 00:00:00:00:00:00 ( ). Access Point Ad-Hoc ( ) Cell . /proc/net/wireless iwconfig . . Link quality . (Contention) . . Signal level (RSSI - ). dBm iwconfig /proc/net/wireless ( ) . Ad-Hoc iwspy . Noise level ( ). Signal level. Rx invalid nwid NWID ESSID . ( ) . Rx invalid crypt . . Rx invalid frag ( ). Tx excessive retries . MAC . Invalid misc . Missed beacon . . (AUTHORS) Jean Tourrilhes - jt@hpl.hp.com (FILES) /proc/net/wireless (SEE ALSO) ifconfig(8), iwspy(8), iwlist(8), iwevent(8), iwpriv(8), wireless(7). wireless-tools 30 March 2006 IWCONFIG(8)