0801cb6b0e
o go ahead and document ibss-master and ibss modes, since there are patches in the pipeline to support them. o Note that they aren't implemented yet. o Note that different regulatory domains have different default channels. o Note that Lucent cards prior to firmware 6.0.4 do not support ibss mode, and only support the older demo ad-hoc mode. o Note that PRISM2 chipsets do not support WDS mode of operation (the mysterious -p 2 option).
314 lines
10 KiB
Groff
314 lines
10 KiB
Groff
.\" Copyright (c) 1997, 1998, 1999
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.\" Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by Bill Paul.
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.\" 4. Neither the name of the author nor the names of any co-contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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.\" THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\" $OpenBSD: wi.4tbl,v 1.14 2002/04/29 19:53:50 jsyn Exp $
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.\"
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.Dd May 2, 2002
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.Dt WI 4
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.Os
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.Sh NAME
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.Nm wi
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.Nd WaveLAN/IEEE, PRISM-II and Spectrum24 802.11DS wireless network driver
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.Sh SYNOPSIS
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.Cd "device wi"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for wireless network adapters based around
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the Lucent Hermes, Intersil PRISM-II, Intersil PRISM-2.5, and Symbol
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Spectrum24 chipsets.
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All four chipsets provide a similar interface to the driver.
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.Pp
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All host/device interaction is via programmed I/O.
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Supported features include 802.11 and 802.3 frames, power management, BSS,
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IBSS, WDS and ad-hoc operation modes.
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Cards based on the Intersil PRISM-II and PRISM-2.5 chips also support a
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host-based access point mode which allows a card to act as a normal access
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point (with some assistance from the
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.Nm
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driver).
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The Lucent Hermes and Symbol Spectrum24 chipsets do not contain this
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functionality.
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PRISM-II and PRISM-2.5 chips do not support the WDS functionality.
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.Pp
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The
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.Nm
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driver encapsulates all IP and ARP traffic as 802.11 frames, however
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it can receive either 802.11 or 802.3 frames.
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Transmit speed is selectable between 1Mbps fixed, 2Mbps fixed, 2Mbps
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with auto fallback, 5.5Mbps, 8Mbps, or 11Mbps depending on your hardware.
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The Lucent WaveLAN/IEEE Silver and Gold cards as well as the Intersil
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and Symbol cards have support for WEP encryption.
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The WaveLAN Gold as well as newer Intersil and Symbol cards support
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104bit keys, the others only accept 40bit keys.
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The Lucent WaveLAN/IEEE Bronze cards do not support WEP at all.
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To enable encryption, use the
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.Xr wicontrol 8
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utility to set your keys, or use
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.Xr ifconfig 8
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as shown below.
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.Pp
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By default, the
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.Nm
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driver configures the card for BSS operation (aka infrastructure
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mode).
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This mode requires the use of an access point (base station).
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.Pp
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The
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.Nm
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driver also supports an ad-hoc (point-to-point) mode where
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the ssid is ignored and stations can communicate amongst
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themselves without the aid of an access point.
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Note that there are two possible ad-hoc modes.
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One mode, referred to as
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.Dq ad-hoc demo mode ,
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predates the IEEE 802.11 specification and so may not interoperate
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with cards from other vendors.
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The standardized ad-hoc mode, also known as IBSS mode, is not
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supported by cards with very old firmware revisions.
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.Pp
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Cards based on the Intersil PRISM-II and PRISM-2.5 chips also
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have a host-based access point mode which allows the card to
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act as an access point (base station).
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.Pp
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For more information on configuring this device, see
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.Xr ifconfig 8 .
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.Pp
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Cards supported by the
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.Nm
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driver come in a variety of packages, though the most common
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are of the PCMCIA type.
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In many cases, the PCI version of a wireless card is simply
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a PCMCIA card bundled with a PCI adapter.
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The PCI adapters come in two flavors: true PCMCIA bridges and
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dumb PCMCIA bridges.
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A true PCMCIA bridge (such as those sold by Lucent) will attach
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as a real PCMCIA controller.
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The wireless card will then attach to the PCMCIA bus.
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Wireless cards in PCMCIA slots may be inserted and ejected on the fly.
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.br
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A dumb bridge, on the other hand, does not show up as a true PCMCIA bus.
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The wireless card will simply appear to the host as a normal PCI
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device and will not require any PCMCIA support.
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Cards in this type of adapter should only be removed when the
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machine is powered down.
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.Pp
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The following cards are among those supported by the
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.Nm
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driver:
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.Pp
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.in +\n(dIu
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.TS
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tab (:) ;
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l l l
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_ _ _
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l l l .
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Card:Chip:Bus
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3Com AirConnect 3CRWE737A:Spectrum24:PCMCIA
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3Com AirConnect 3CRWE777A:Prism-II:PCI
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ACTIONTEC HWC01170:Prism-2.5:PCMCIA
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Addtron AWP-100:Prism-II:PCMCIA
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Agere Orinoco:Hermes:PCMCIA
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Buffalo AirStation:Prism-II:PCMCIA
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Buffalo AirStation:Prism-II:CF
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Cabletron RoamAbout:Hermes:PCMCIA
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Compaq Agency NC5004:Prism-II:PCMCIA
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Contec FLEXLAN/FX-DS110-PCC:Prism-II:PCMCIA
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Corega PCC-11:Prism-II:PCMCIA
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Corega PCCA-11:Prism-II:PCMCIA
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Corega PCCB-11:Prism-II:PCMCIA
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Corega CGWLPCIA11:Prism-II:PCI
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Dlink DWL520:Prism-2.5:PCI
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Dlink DWL650:Prism-2.5:PCMCIA
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ELSA XI300:Prism-II:PCMCIA
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ELSA XI800:Prism-II:CF
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EMTAC A2424i:Prism-II:PCMCIA
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Ericsson Wireless LAN CARD C11:Spectrum24:PCMCIA
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Gemtek WL-311:Prism-2.5:PCMCIA
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Hawking Technology WE110P:Prism-2.5:PCMCIA
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I-O DATA WN-B11/PCM:Prism-II:PCMCIA
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Intel PRO/Wireless 2011:Spectrum24:PCMCIA
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Intersil Prism II:Prism-II:PCMCIA
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Intersil Mini-PCI:Prism-2.5:PCI
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Linksys Instant Wireless WPC11:Prism-II:PCMCIA
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Linksys Instant Wireless WPC11 2.5:Prism-2.5:PCMCIA
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Lucent WaveLAN:Hermes:PCMCIA
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NANOSPEED ROOT-RZ2000:Prism-II:PCMCIA
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NDC/Sohoware NCP130:Prism-II:PCI
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NEC CMZ-RT-WP:Prism-II:PCMCIA
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Netgear MA401:Prism-II:PCMCIA
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NTT-ME 11Mbps Wireless LAN:Prism-II:PCMCIA
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Proxim RangeLAN-DS:Prism-II:PCMCIA
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Samsung MagicLAN SWL-2000N:Prism-II:PCMCIA
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Socket Low Power WLAN-CF:Prism-II:CF
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SMC 2602 EZ Connect (3.3V):Prism-II:PCI or PCMCIA
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SMC 2632 EZ Connect:Prism-II:PCMCIA
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Symbol Spectrum24:Spectrum24:PCMCIA
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TDK LAK-CD011WL:Prism-II:PCMCIA
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.TE
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.in -\n(dIu
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.Pp
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Several vendors sell PCI adapters built around the PLX Technology 9050
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or 9052 chip.
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The following such adapters are supported or expected to work:
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.Pp
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.Bl -tag -width -compact
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.It 3Com AirConnect 3CRWE777A (3.3V)
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.It Belkin F5D6000 (a rebadged WL11000P)
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.It Eumitcom WL11000P
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.It Global Sun Technology GL24110P (untested)
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.It Global Sun Technology GL24110P02
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.It LinkSys WDT11 (a rebadged GL24110P02)
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.It Netgear MA301
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.It US Robotics 2415 (rebadged WL11000P)
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.El
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.Pp
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.Sh EXAMPLES
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The following examples utilize
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.Xr ifconfig 8
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for simplicity, however,
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.Xr wicontrol 8
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can also be used to set wireless parameters.
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.Pp
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Join an existing BSS network (ie: connect to an access point):
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.Dl # ifconfig wi0 inet 192.168.0.20 netmask 0xffffff00
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.Pp
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Join a specific BSS network with network name
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.Dq my_net .
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.Dl # ifconfig wi0 inet 192.168.0.20 netmask 0xffffff00 ssid my_net
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.br
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.Pp
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Join a specific BSS network with WEP encryption:
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.Bd -literal -compact -offset indent
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# ifconfig wi0 inet 192.168.0.20 netmask 0xffffff00 ssid my_net \e
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wepkey 0x8736639624
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.Ed
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.Pp
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Join an ad-hoc network with network name
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.Dq my_net .
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.Bd -literal -compact -offset indent
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# ifconfig wi0 inet 192.168.0.20 netmask 0xffffff00 ssid my_net \e
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mediaopt adhoc
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.Ed
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.Pp
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Create an IBBS network with network name
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.Dq my_net .
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.Bd -literal -compact -offset indent
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# ifconfig wi0 inet 192.168.0.20 netmask 0xffffff00 ssid my_net \e
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mediaopt ibss-master
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.Ed
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Note: The infrastructure for mediaopt ibss-master has not been
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committed yet.
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.Pp
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Join an IBBS network with network name
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.Dq my_net .
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.Bd -literal -compact -offset indent
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# ifconfig wi0 inet 192.168.0.22 netmask 0xffffff00 ssid my_net \e
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mediaopt ibss
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.Ed
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Note: The infrastructure for mediaopt ibss has not been
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committed yet.
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.Pp
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Create a host-based access point (Prism only):
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.Bd -literal -compact -offset indent
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# ifconfig wi0 inet 192.168.0.10 netmask 0xffffff00 ssid my_ap \e
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mediaopt hostap
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.Ed
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.Pp
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Create a host-based access point with WEP enabled (Prism only):
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.Bd -literal -compact -offset indent
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# ifconfig wi0 inet 192.168.0.10 netmask 0xffffff00 ssid my_ap \e
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wepkey 0x1234567890 mediaopt hostap
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.Ed
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.Pp
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Create a host-based wireless bridge to fxp0 (Prism only):
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.Bd -literal -compact -offset indent
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Add BRIDGE to the kernel config.
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# ifconfig wi0 inet up ssid my_ap mediaopt hostap
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# sysctl net.link.ether.bridge=1
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# sysctl net.link.ether.bridge_cfg="wi0 fxp0"
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# sysctl net.inet.ip.forwarding=1
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.Ed
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This will give you approximately the same functionality as an access
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point.
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.Sh DIAGNOSTICS
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.Bl -diag
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.It "wi%d: init failed"
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The WaveLAN card failed to come ready after an initialization command
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was issued.
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.It "wi%d: failed to allocate %d bytes on NIC"
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The driver was unable to allocate memory for transmit frames in the
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NIC's on-board RAM.
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.It "wi%d: device timeout"
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The WaveLAN failed to generate an interrupt to acknowledge a transmit
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command.
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.El
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.Sh SEE ALSO
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.Xr an 4 ,
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.Xr arp 4 ,
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.Xr netintro 4 ,
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.Xr ifmedia 4 ,
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.Xr hostname.if 5 ,
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.Xr ifconfig 8 ,
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.Xr wicontrol 8
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.Rs
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.%T HCF Light programming specification
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.%O http://www.wavelan.com
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.Re
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.Sh HISTORY
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The
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.Nm
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device driver first appeared in
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.Fx 3.0 .
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.Sh AUTHORS
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The
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.Nm
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driver was written by Bill Paul <wpaul@ctr.columbia.edu>.
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This man page comes from
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.Ox .
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.Sh CAVEATS
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The original Lucent WaveLAN cards usually default to channel 3;
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newer cards use channel 10 by default.
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Non-Lucent cards vary, for instance the Addtron cards use channel
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11 by default.
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Different regulatory domains have different default channels.
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See
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.Xr wicontrol 8
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for information on how to change the channel.
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.Pp
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IBSS creation does not currently work with Symbol cards.
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.Pp
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Prism2 host-based access point mode has bugs for firmware versions
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prior to 0.8.3.
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.Pp
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Lucent cards prior to firmware version 6.0.4 do not support ibss
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mode.
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