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MAN PAGE: WVLAN_CS(4)Contents
wvlan_cs - Lucent WaveLAN/IEEE 802.11 device driver
insmod wvlan_cs.o [irq_list=i,j,...] [port_type=n] [sta
tion_name=s] [network_name=s] [channel=n] [ap_density=n]
[medium_reservation=n] [frag_threshold=n] [trans
mit_rate=n] [eth=n] [mtu=n]
wvlan_cs is the low-level Card Services driver for the
Lucent WaveLAN/IEEE 802.11 , the NCR WaveLAN/IEEE 802.11
and the Cabletron RoamAbout 802.11 DS wireless ethernet
adapter. When this driver is attached to a card, it allo
cates the next available device (wvlan0..wvlan#). This
device name will be passed on to cardmgr(8) for the card
configuration, and reported in the kernel log.
irq_list=i,j,...
Specifies the set of interrupts that may be allo
cated by this driver.
port_type=n
Select WaveLAN port type: [1] BSS - Basic Service
Set (default), [2] WDS - Wireless Distribution Sys
tem, [3] Pseudo-IBSS - ad-hoc network (no Access
Point, PtP).
station_name=s
Sets the station name. The default is card-config
ured.
network_name=s
Sets the independent network name in ad-hoc mode.
Sets the desired network (desired SSID) to connect
to if using an access point. The default is card-
configured.
channel=n
Channel (frequency) for ad-hoc networks and is use
less if using an access point. Valid range: [0-14]
(depends on local restrictions) and defaults to [3]
ap_density=n
Sets the access point density (sensitivity). This
affects modem and roaming thresholds. [1] low den
sity (default), [2] medium density, [3] high den
sity.
medium_reservation=n
Sets the medium reservation (RTS/CTS frame length),
which affects the number of octets in a message or
fragment above which a RTS/CTS handshake is
performed. [500] hidden stations, [2347] no
RTS/CTS (default). Valid range: [0-2347]
frag_threshold=n
Defines the number of bytes used for the fragmenta
tion boundary for directed messages (Fragmentation
length unicast message transmission). [2346] is
the default, valid range: [256-2346] (even numbers
only!).
transmit_rate=n
Transmit rate control. [1] fixed low, [2] fixed
high, [3] auto select high (default), [4] fixed
medium, [5] fixed high, [6] auto select standard,
[7] auto select medium.
eth=n Network device naming. By default [0] devices are
named wvlan#, set this to [1] to have devices named
eth#.
mtu=n Maximum transfer unit. [1500] is the default,
valid range: [256-2296]
Use iwconfig(8) to manipulate wireless extensions. You
need a kernel which was compiled with CONFIG_NET_RADIO
set. It is recommended that you run at least Linux kernel
2.2.11 and use wireless_tools 19. Older version do not
support all of the current commands.
ESSID (network ID)
Set the network ID of the desired network to connect to
(with access point) or the name of your private ad-hoc
network (no access point).
Frequency & channels
For the 2.4GHz 2.00 Hardware, you are able to set the fre
quency by specifying one of the 15 defined channels or
directly by its frequency value. The frequency is changed
immediately and is only changeable in ad-hoc network mode.
Frequency availability depend on the regulations...
Statistics spy
Set a list of MAC addresses in the driver (up to 8) and
get the last quality of link for each of those (see
iwspy(8)).
/proc/net/wireless
status is the status reported by the modem. Link quality
reports the quality of the modulation on the air [max =
16]. Level and Noise refer to the signal level and noise
level [max = 64]. You may use iwpriv(8) to manipulate private ioctls.
Histogram
This functionality allow to set a number of signal level
intervals and to count the number of packets received in
each of those defined intervals. This distribution might
be used to calculate the mean value and standard deviation
of the signal level.
Some of the mentioned features are optional. You may
enable to disable them by changing flags in the driver
header and recompile.
It's currently not possible to use the WaveLAN/IEEE as a
bridge (MAC level). This is not a restriction of the
driver, the NIC firmware doesn't allow to send out packets
with another source MAC address than its own (which is
mandatory required for bridgeing to work).
Andreas Neuhaus <andy@fasta.fh-dortmund.de>
I would like to thank Lucent Technology for making the
necessary information available to public. Special thanks
to Nico Valster and Jan Martejin at Lucent for technical
support. Special thanks to Frank Bruegmann, who managed to
get an access point for me so that I can now test access
point stuff as well. Also many thanks to everybody who
tested and helped me developing this driver :-)
wavelan(4), cardmgr(8), pcmcia(5), ifconfig(8), insmod(1),
iwconfig(8), iwspy(8), iwpriv(8).
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