.\" Jean II - HPLB - 1996 => HPL - 2004
.\" iwconfig.8
.\"
-.TH IWCONFIG 8 "09 March 2006" "wireless-tools" "Linux Programmer's Manual"
+.TH IWCONFIG 8 "30 March 2006" "wireless-tools" "Linux Programmer's Manual"
.\"
.\" NAME part
.\"
.br
.BI " [enc " E "] [key " K "] [power " P "] [retry " R ]
.br
-.BI " [commit]
+.BI " [modu " M "] [commit]
.br
.BI "iwconfig --help"
.br
.br
.I " iwconfig eth0 essid -- ""ANY""
.TP
-.BR nwid / domain
-Set the Network ID (in some products it may also be called Domain
-ID). As all adjacent wireless networks share the same medium, this
-parameter is used to differenciate them (create logical colocated
-networks) and identify nodes belonging to the same cell.
+.BR nwid
+Set the Network ID. As all adjacent wireless networks share the same
+medium, this parameter is used to differentiate them (create logical
+colocated networks) and identify nodes belonging to the same cell.
.br
This parameter is only used for pre-802.11 hardware, the 802.11
protocol uses the ESSID and AP Address for this function.
.br
To set the maximum number of retries, enter
.IR "limit `value'" .
-This is an absolute value (without unit).
+This is an absolute value (without unit), and the default (when
+nothing is specified).
To set the maximum length of time the MAC should retry, enter
.IR "lifetime `value'" .
-By defaults, this value in in seconds, append the suffix m or u to
+By defaults, this value is in seconds, append the suffix m or u to
specify values in milliseconds or microseconds.
.br
You can also add the
-.IR min " and " max
+.IR short ", " long ", " min " and " max
modifiers. If the card supports automatic mode, they define the bounds
of the limit or lifetime. Some other cards define different values
depending on packet size, for example in 802.11
.br
.I " iwconfig eth0 retry lifetime 300m"
.br
+.I " iwconfig eth0 retry short 12"
+.br
.I " iwconfig eth0 retry min limit 8"
.TP
.BR rts [_threshold]
.IR "period `value'" .
To set the timeout before going back to sleep, enter
.IR "timeout `value'" .
+To set the generic level of power saving, enter
+.IR "saving `value'" .
You can also add the
.IR min " and " max
modifiers. By default, those values are in seconds, append the suffix
m or u to specify values in milliseconds or microseconds. Sometimes,
-those values are without units (number of beacon periods, dwell or
-similar).
+those values are without units (number of beacon periods, dwell,
+percentage or similar).
.br
.IR off " and " on
disable and reenable power management. Finally, you may set the power
.br
.I " iwconfig eth0 power timeout 300u all"
.br
+.I " iwconfig eth0 power saving 3"
+.br
.I " iwconfig eth0 power off"
.br
.I " iwconfig eth0 power min period 2 power max period 4"
.TP
+.BR modu [lation]
+Force the card to use a specific set of modulations. Modern cards
+support various modulations, some which are standard, such as 802.11b
+or 802.11g, and some proprietary. This command force the card to only
+use the specific set of modulations listed on the command line. This
+can be used to fix interoperability issues.
+.br
+The list of available modulations depend on the card/driver and can be
+displayed using
+.IR "iwlist modulation" .
+Note that some card/driver may not be able to select each modulation
+listed independently, some may come as a group. You may also set this
+parameter to
+.IR auto
+let the card/driver do its best.
+.br
+.B Examples :
+.br
+.I " iwconfig eth0 modu 11g"
+.br
+.I " iwconfig eth0 modu CCK OFDMa"
+.br
+.I " iwconfig eth0 modu auto"
+.TP
.BR commit
Some cards may not apply changes done through Wireless Extensions
immediately (they may wait to aggregate the changes or apply it only
-when the card is brought up via ifconfig). This command (when
-available) forces the card to apply all pending changes.
+when the card is brought up via
+.IR ifconfig ).
+This command (when available) forces the card to apply all pending
+changes.
.br
This is normally not needed, because the card will eventually apply
the changes, but can be useful for debugging.
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