.\" $OpenBSD: ancontrol.8,v 1.4 2000/05/20 17:28:41 deraadt Exp $ .\" .\" Copyright (c) 1997, 1998, 1999 .\" Bill Paul All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" 3. All advertising materials mentioning features or use of this software .\" must display the following acknowledgement: .\" This product includes software developed by Bill Paul. .\" 4. Neither the name of the author nor the names of any co-contributors .\" may be used to endorse or promote products derived from this software .\" without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD .\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR .\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF .\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS .\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN .\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF .\" THE POSSIBILITY OF SUCH DAMAGE. .\" .\" $FreeBSD: src/usr.sbin/ancontrol/ancontrol.8,v 1.3 2000/03/02 14:53:33 sheldonh Exp $ .\" .Dd September 10, 1999 .Dt ANCONTROL 8 .Os .Sh NAME .Nm ancontrol .Nd configure Aironet 4500/4800 devices .Sh SYNOPSIS .Nm ancontrol .Ar interface .Op Fl A .Op Fl N .Op Fl S .Op Fl I .Op Fl T .Op Fl C .Op Fl t Ar 0|1|2|3|4 .Op Fl s Ar 0|1|2|3 .Op Fl a Ar AP .Op Fl v Ar 1|2|3|4 .Op Fl b Ar beacon period .Op Fl d Ar 0|1|2|3 .Op Fl v Ar 0|1 .Op Fl j Ar netjoin timeout .Op Fl l Ar station name .Op Fl m Ar macaddress .Op Fl n Ar SSID .Op Fl v Ar 1|2|3 .Op Fl o Ar 0|1 .Op Fl p Ar tx power .Op Fl c Ar channel number .Op Fl f Ar fragmentation threshold .Op Fl r Ar RTS threshold .Sh DESCRIPTION The .Nm command controls the operation of Aironet wireless networking devices via the .Xr an 4 driver. Most of the parameters that can be changed relate to the IEEE 802.11 protocol which the Aironet cards implement. This includes the station name, whether the station is operating in ad-hoc (point to point) or infrastructure mode, and the network name of a service set to join. .Nm can also be used to view the current NIC status, configuration and to dump out the values of the card's statistics counters. .Pp The .Ar iface argument given to .Nm should be the logical interface name associated with the Aironet device (e.g., an0, an1, etc...). .Pp The options are as follows: .Bl -tag -width Fl .It Fl A Display the preferred access point list. The AP list can be used by stations to specify the MAC address of access points with which it wishes to associate. If no AP list is specified (the default) then the station will associate with the first access point that it finds which serves the SSID(s) specified in the SSID list. The AP list can be modified with the .Fl a option. .It Fl N Display the SSID list. This is a list of service set IDs (i.e., network names) with which the station wishes to associate. There may be up to three SSIDs in the list: the station will go through the list in ascending order and associate with the first matching SSID that it finds. .It Fl S Display NIC status information. This includes the current operating status, current BSSID, SSID, channel, beacon period, and currently associated access point. The operating mode indicates the state of the NIC, MAC status and receiver status. When the .Dq synced keyword appears, it means the NIC has successfully associated with an access point, associated with an ad-hoc .Dq master station, or become a .Dq master itself. The beacon period can be anything between 20 and 976 milliseconds. The default is 100. .It Fl I Display NIC capability information. This shows the device type, frequency, speed, and power level capablities and firmware revision levels. .It Fl T Display the NIC's internal statistics counters. .It Fl C Display current NIC configuration. This shows the current operation mode, receive mode, MAC address, power save settings, various timing settings, channel selection, diversity, transmit power, and transmit speed. .It Fl t Ar 0|1|2|3|4 Select transmit speed. The available settings are as follows: .Bd -filled -offset indent .Bl -column "TX rate " "NIC speed " .Em "TX rate NIC speed" 0 Auto -- NIC selects optimal speed 1 1Mbps fixed 2 2Mbps fixed 3 5.5Mbps fixed 4 11Mbps fixed .El .Ed .Pp Note that the 5.5 and 11Mbps settings are only supported on the 4800 series adapters: the 4500 series adapters have a maximum speed of 2Mbps. .It Fl s Ar 0|1|2|3 Set power save mode. Valid selections are as follows: .Bd -filled -offset indent .Bl -column "Selection " "Power save mode " .Em "Selection Power save mode" 0 None - power save disabled 1 Constantly awake mode (CAM) 2 Power Save Polling (PSP) 3 Fast Power Save Polling (PSP-CAM) .El .Ed .Pp Note that for IBSS (ad-hoc) mode, only PSP mode is supported, and only if the ATIM window is non-zero. .It Fl a Ar AP Fl v Ar "1|2|3|4 Set preferred access point. The .Ar AP is specified as a MAC address consisting of 6 hexadecimal values separated by colons. By default, the .Fl a option only sets the first entry in the AP list. The .Fl v modifier can be used to specify exactly which AP list entry is to be modified. If the .Fl v flag is not used, the first AP list entry will be changed. .It Fl b Ar beacon period Set the ad-hoc mode beacon period. The becon period is specified in milliseconds. The default is 100ms. .It Fl d Ar 0|1|2|3 Fl v Ar "0|1" Select the antenna diversity. Aironet devices can be configured with up to two antennas, and transmit and receive diversity can be configured accordingly. Valid selections are as follows: .Bd -filled -offset indent .Bl -column "Selection " "Diversity " .Em "Selection Diversity" 0 Select factory default diversity 1 Antenna 1 only 2 Antenna 2 only 3 Antenna 1 and 2 .El .Ed .Pp The receive and transmit diversity can be set independently. The user must specify which diversity setting is to be modified by using the .Fl v option: selection .Ar 0 sets the receive diversity and .Ar 1 sets the transmit diversity. .It Fl j Ar netjoin timeout Set the ad-hoc network join timeout. When a station is first activated in ad-hoc mode, it will search out a 'master' station with the desired SSID and associate with it. If the station is unable to locate another station with the same SSID after a suitable timeout, it sets itself up as the 'master' so that other stations may associate with it. This timeout defaults to 10000 milliseconds (10 seconds) but may be changed with this option. The timeout should be specified in milliseconds. .Fl l Ar station name Set the station name used internally by the NIC. The .Ar station name can be any text string up to 16 characters in length. The default name is set by the driver to .Qq OpenBSD . .It Fl m Ar macaddress Set the station address for the specified interface. The .Ar macaddress is specified as a series of six hexadecimal values separated by colons, e.g.: 00:60:1d:12:34:56. This programs the new address into the card and updates the interface as well. .It Fl n Ar SSID "[-v 1|2|3]" Set the desired SSID (network name). There are three SSIDs which allows the NIC to work with access points at several locations without needing to be reconfigured. The NIC checks each SSID in sequence when searching for a match. The SSID to be changed can be specified with the .Fl v modifier option. If the .Fl v flag isn't used, the first SSID in the list is set. .It Fl o Ar 0|1 Set the operating mode of the Aironet interface. Valid selections are .Ar 0 for ad-hoc mode and .Ar 1 for infrastructure mode. The default driver setting is for ad-hoc mode. .It Fl p Ar tx power Set the transmit power level in milliwatts. Valid power settings vary depending on the actual NIC and can be viewed by dumping the device capabilities with the .Fl I flag. Typical values are 1, 5, 20, 50, and 100mW. Selecting 0 sets the factory default. .It Fl c Ar channel Set the radio frequency of a given interface. The .Ar frequency should be specified as a channel ID as shown in the table below. The list of available frequencies is dependent on radio regulations specified by regional authorities. Recognized regulatory authorities include the FCC (United States), ETSI (Europe), France, and Japan. Frequencies in the table are specified in Mhz. .Bd -filled -offset indent .Bl -column "Channel ID " "FCC " "ETSI " "France " "Japan " .Em "Channel ID FCC ETSI France Japan" 1 2412 2412 - - 2 2417 2417 - - 3 2422 2422 - - 4 2427 2427 - - 5 2432 2432 - - 6 2437 2437 - - 7 2442 2442 - - 8 2447 2447 - - 9 2452 2452 - - 10 2457 2457 2457 - 11 2462 2462 2462 - 12 - 2467 2467 - 13 - 2472 2472 - 14 - - - 2484 .El .Ed .Pp If an illegal channel is specified, the NIC will revert to its default channel. For NICs sold in the United States and Europe, the default channel is 3. For NICs sold in France, the default channel is 11. For NICs sold in Japan, the only available channel is 14. Note that two stations must be set to the same channel in order to communicate. .It Fl f Ar fragmentation threshold Set the fragmentation threshold in bytes. This threshold controls the point at which outgoing packets will be split into multiple fragments. If a single fragment is not sent successfully, only that fragment will need to be retransmitted instead of the whole packet. The fragmentation threshold can be anything from 64 to 2312 bytes. The default is 2312. .It Fl r Ar RTS threshold Set the RTS/CTS threshold for a given interface. This controls the number of bytes used for the RTS/CTS handhake boundary. The .Ar RTS threshold can be any value between 0 and 2312. The default is 2312. .It Fl h Prints a list of available options and sample usage. .El .Sh SEE ALSO .Xr an 4 , .Xr wi 4 , .Xr wicontrol 4 , .Xr hostname.if 8 , .Xr ifconfig 8 .Sh AUTHORS The .Nm command was written by Bill Paul and ported to .Ox by Michael Shalayeff . .Sh HISTORY The .Nm command first appeared in .Fx 3.0 and .Ox 2.7 . .Sh BUGS The statistics counters do not seem to show the amount of transmit and received frames as increasing. This is likely due to the fact that the .Xr an 4 driver uses unmodified packet mode instead of letting the NIC perform 802.11/Ethernet encapsulation itself. .Pp Setting the channel does not seem to have any effect.