NAME
iwn
- Intel Wireless 4965AGN IEEE 802.11 driver
SYNOPSIS
iwn* at pci? dev ? function ?
DESCRIPTION
The
iwn
driver provides support for
Intel
Wireless WiFi Link 4965AGN Mini PCI Express network adapters.
By default, the
iwn
driver configures the adapter for BSS operation (aka infrastructure mode).
This mode requires the use of an access point.
For more information on configuring this device, see
ifconfig(8).
CONFIGURATION
The
iwn
driver can be configured at runtime with
ifconfig(8)
using the following parameters:
- bssid bssid
-
Set the desired BSSID.
- -bssid
-
Unset the desired BSSID.
The interface will automatically select a BSSID in this mode, which is
the default.
- chan n
-
Set the channel (radio frequency) to be used by the driver based on
the given channel ID
n.
- -chan
-
Unset the desired channel to be used by the driver.
The driver will automatically select a channel in this mode, which is
the default.
- media media
-
The
iwn
driver supports the following
media
types:
- autoselect
-
Enable autoselection of the media type and options.
- mediaopt opts
-
The
iwn
driver supports the following media options:
- monitor
-
Select monitor mode.
- -mediaopt opts
-
Disable the specified media options on the driver and return it to the
default mode of operation (BSS).
- mode mode
-
The
iwn
driver supports the following modes:
- 11a
-
Force 802.11a operation.
- 11b
-
Force 802.11b operation.
- 11g
-
Force 802.11g operation.
- nwid id
-
Set the network ID.
The
id
can either be any text string up to 32 characters in length,
or a series of hexadecimal digits up to 64 digits.
An empty
id
string allows the interface to connect to any available access points.
By default the
iwn
driver uses an empty string.
Note that network ID is synonymous with Extended Service Set ID (ESSID).
- nwkey key
-
Enable WEP encryption using the specified
key.
The
key
can either be a string, a series of hexadecimal digits (preceded by
`0x'),
or a set of keys of the form
``n:k1,k2,k3,k4'',
where
`n'
specifies which of the keys will be used for transmitted packets,
and the four keys,
``k1''
through
``k4'',
are configured as WEP keys.
If a set of keys is specified, a comma
(`,')
within the key must be escaped with a backslash.
Note that if multiple keys are used, their order must be the same within
the network.
iwn
is capable of using both 40-bit (5 characters or 10 hexadecimal digits)
or 104-bit (13 characters or 26 hexadecimal digits) keys.
- -nwkey
-
Disable WEP encryption.
This is the default mode of operation.
EXAMPLES
The following
example configures iwn0 to join whatever network is available on boot,
using WEP key
``0x1deadbeef1'',
channel 11, obtaining an IP address using DHCP:
-
dhcp NONE NONE NONE nwkey 0x1deadbeef1 chan 11
Configure iwn0 for WEP, using hex key
``0x1deadbeef1'':
-
# ifconfig iwn0 nwkey 0x1deadbeef1
Return iwn0 to its default settings:
-
# ifconfig iwn0 -bssid -chan media autoselect \
nwid "" -nwkey
Join an existing BSS network,
``my_net'':
-
# ifconfig iwn0 192.168.1.1 netmask 0xffffff00 nwid my_net
DIAGNOSTICS
- iwn%d: device timeout
-
A frame dispatched to the hardware for transmission did not complete in time.
The driver will reset the hardware.
This should not happen.
- iwn%d: fatal firmware error
-
For some reason, the firmware crashed.
The driver will reset the hardware.
This should not happen.
- iwn%d: radio is disabled by hardware switch
-
The radio transmitter is off and thus no packet can go out.
The driver will reset the hardware.
Make sure the laptop radio switch is on.
- iwn%d: error %d, could not read firmware %s
-
For some reason, the driver was unable to read the firmware image from the
filesystem.
The file might be missing or corrupted.
- iwn%d: firmware file too short: %d bytes
-
The firmware image is corrupted and can't be loaded into the adapter.
- iwn%d: could not load firmware
-
An attempt to load the firmware into the adapter failed.
The driver will reset the hardware.
SEE ALSO
arp(4),
ifmedia(4),
intro(4),
netintro(4),
pci(4),
ifconfig(8)
AUTHORS
The
iwn
driver and this man page were written by
Damien Bergamini <damien.bergamini@free.fr>
.