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984263bc MD |
1 | .\" Copyright (c) 1997, 1998, 1999 |
2 | .\" Bill Paul <wpaul@ee.columbia.edu> All rights reserved. | |
3 | .\" | |
4 | .\" Redistribution and use in source and binary forms, with or without | |
5 | .\" modification, are permitted provided that the following conditions | |
6 | .\" are met: | |
7 | .\" 1. Redistributions of source code must retain the above copyright | |
8 | .\" notice, this list of conditions and the following disclaimer. | |
9 | .\" 2. Redistributions in binary form must reproduce the above copyright | |
10 | .\" notice, this list of conditions and the following disclaimer in the | |
11 | .\" documentation and/or other materials provided with the distribution. | |
12 | .\" 3. All advertising materials mentioning features or use of this software | |
13 | .\" must display the following acknowledgement: | |
14 | .\" This product includes software developed by Bill Paul. | |
15 | .\" 4. Neither the name of the author nor the names of any co-contributors | |
16 | .\" may be used to endorse or promote products derived from this software | |
17 | .\" without specific prior written permission. | |
18 | .\" | |
19 | .\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND | |
20 | .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
21 | .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
22 | .\" ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD | |
23 | .\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
24 | .\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
25 | .\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
26 | .\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
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29 | .\" THE POSSIBILITY OF SUCH DAMAGE. | |
30 | .\" | |
31 | .\" $FreeBSD: src/usr.sbin/ancontrol/ancontrol.8,v 1.3.2.17 2003/02/01 03:25:12 ambrisko Exp $ | |
32 | .\" | |
33 | .Dd September 10, 1999 | |
34 | .Dt ANCONTROL 8 | |
35 | .Os | |
36 | .Sh NAME | |
37 | .Nm ancontrol | |
38 | .Nd configure Aironet 4500/4800 devices | |
39 | .Sh SYNOPSIS | |
40 | .Nm | |
41 | .Fl i Ar iface Fl A | |
42 | .Nm | |
43 | .Fl i Ar iface Fl N | |
44 | .Nm | |
45 | .Fl i Ar iface Fl S | |
46 | .Nm | |
47 | .Fl i Ar iface Fl I | |
48 | .Nm | |
49 | .Fl i Ar iface Fl T | |
50 | .Nm | |
51 | .Fl i Ar iface Fl C | |
52 | .Nm | |
53 | .Fl i Ar iface Fl Q | |
54 | .Nm | |
55 | .Fl i Ar iface Fl Z | |
56 | .Nm | |
57 | .Fl i Ar iface Fl R | |
58 | .Nm | |
59 | .Fl i Ar iface Fl t Cm 0 Ns - Ns Cm 4 | |
60 | .Nm | |
61 | .Fl i Ar iface Fl s Cm 0 Ns - Ns Cm 3 | |
62 | .Nm | |
63 | .Fl i Ar iface | |
64 | .Op Fl v Cm 1 Ns - Ns Cm 4 | |
65 | .Fl a Ar AP | |
66 | .Nm | |
67 | .Fl i Ar iface Fl b Ar beacon_period | |
68 | .Nm | |
69 | .Fl i Ar iface | |
70 | .Op Fl v Cm 0 | 1 | |
71 | .Fl d Cm 0 Ns - Ns Cm 3 | |
72 | .Nm | |
73 | .Fl i Ar iface Fl e Cm 0 Ns - Ns Cm 4 | |
74 | .Nm | |
75 | .Fl i Ar iface | |
76 | .Op Fl v Cm 0 Ns - Ns Cm 8 | |
77 | .Fl k Ar key | |
78 | .Nm | |
79 | .Fl i Ar iface | |
80 | .Fl K Cm 0 Ns - Ns Cm 2 | |
81 | .Nm | |
82 | .Fl i Ar iface | |
83 | .Fl W Cm 0 Ns - Ns Cm 2 | |
84 | .Nm | |
85 | .Fl i Ar iface | |
86 | .Fl L Ar user_name | |
87 | .Nm | |
88 | .Fl i Ar iface Fl j Ar netjoin_timeout | |
89 | .Nm | |
90 | .Fl i Ar iface Fl l Ar station_name | |
91 | .Nm | |
92 | .Fl i Ar iface Fl m Ar mac_address | |
93 | .Nm | |
94 | .Fl i Ar iface | |
95 | .Op Fl v Cm 1 Ns - Ns Cm 3 | |
96 | .Fl n Ar SSID | |
97 | .Nm | |
98 | .Fl i Ar iface Fl o Cm 0 | 1 | |
99 | .Nm | |
100 | .Fl i Ar iface Fl p Ar tx_power | |
101 | .Nm | |
102 | .Fl i Ar iface Fl c Ar frequency | |
103 | .Nm | |
104 | .Fl i Ar iface Fl f Ar fragmentation_threshold | |
105 | .Nm | |
106 | .Fl i Ar iface Fl r Ar RTS_threshold | |
107 | .Nm | |
108 | .Fl i Ar iface Fl M Cm 0 Ns - Ns Cm 15 | |
109 | .Nm | |
110 | .Fl h | |
111 | .Sh DESCRIPTION | |
112 | The | |
113 | .Nm | |
114 | utility controls the operation of Aironet wireless networking | |
115 | devices via the | |
116 | .Xr an 4 | |
117 | driver. | |
118 | Most of the parameters that can be changed relate to the | |
119 | IEEE 802.11 protocol which the Aironet cards implement. | |
120 | This includes such things as | |
121 | the station name, whether the station is operating in ad-hoc (point | |
122 | to point) or infrastructure mode, and the network name of a service | |
123 | set to join. | |
124 | The | |
125 | .Nm | |
126 | utility can also be used to view the current NIC status, configuration | |
127 | and to dump out the values of the card's statistics counters. | |
128 | .Pp | |
129 | The | |
130 | .Ar iface | |
131 | argument given to | |
132 | .Nm | |
133 | should be the logical interface name associated with the Aironet | |
134 | device | |
135 | .Li ( an0 , an1 , | |
136 | etc.). | |
137 | If one isn't specified the device | |
138 | .Dq Li an0 | |
139 | will be assumed. | |
140 | .Pp | |
141 | The | |
142 | .Nm | |
143 | utility is not designed to support the combination of arguments from different | |
144 | .Sx SYNOPSIS | |
145 | lines in a single | |
146 | .Nm | |
147 | invocation, and such combinations are not recommended. | |
148 | .Sh OPTIONS | |
149 | The options are as follows: | |
150 | .Bl -tag -width indent | |
151 | .It Fl i Ar iface Fl A | |
152 | Display the preferred access point list. | |
153 | The AP list can be used by | |
154 | stations to specify the MAC address of access points with which it | |
155 | wishes to associate. | |
156 | If no AP list is specified (the default) then | |
157 | the station will associate with the first access point that it finds | |
158 | which serves the SSID(s) specified in the SSID list. | |
159 | The AP list can | |
160 | be modified with the | |
161 | .Fl a | |
162 | option. | |
163 | .It Fl i Ar iface Fl N | |
164 | Display the SSID list. | |
165 | This is a list of service set IDs (i.e., network names) | |
166 | with which the station wishes to associate. | |
167 | There may be up to three SSIDs | |
168 | in the list: the station will go through the list in ascending order and | |
169 | associate with the first matching SSID that it finds. | |
170 | .It Fl i Ar iface Fl S | |
171 | Display NIC status information. | |
172 | This includes the current operating | |
173 | status, current BSSID, SSID, channel, beacon period and currently | |
174 | associated access point. | |
175 | The operating mode indicates the state of | |
176 | the NIC, MAC status and receiver status. | |
177 | When the | |
178 | .Qq Li synced | |
179 | keyword | |
180 | appears, it means the NIC has successfully associated with an access | |
181 | point, associated with an ad-hoc | |
182 | .Dq master | |
183 | station, or become a | |
184 | .Dq master | |
185 | itself. | |
186 | The beacon period can be anything between 20 and 976 milliseconds. | |
187 | The default is 100. | |
188 | .It Fl i Ar iface Fl I | |
189 | Display NIC capability information. | |
190 | This shows the device type, | |
191 | frequency, speed and power level capabilities and firmware revision levels. | |
192 | .It Fl i Ar iface Fl T | |
193 | Display the NIC's internal statistics counters. | |
194 | .It Fl i Ar iface Fl C | |
195 | Display current NIC configuration. | |
196 | This shows the current operation mode, | |
197 | receive mode, MAC address, power save settings, various timing settings, | |
198 | channel selection, diversity, transmit power and transmit speed. | |
199 | .It Fl i Ar iface Fl Q | |
200 | Display the cached signal strength information maintained by the | |
201 | .Xr an 4 | |
202 | driver. | |
203 | The driver retains information about signal strength and | |
204 | noise level for packets received from different hosts. | |
205 | The signal strength and noise level values are displayed in units of dBms by | |
206 | default. | |
207 | The | |
208 | .Va machdep.an_cache_mode | |
209 | .Xr sysctl 8 | |
210 | variable can be set to | |
211 | .Cm raw , dbm | |
212 | or | |
213 | .Cm per . | |
214 | .It Fl i Ar iface Fl Z | |
215 | Clear the signal strength cache maintained internally by the | |
216 | .Xr an 4 | |
217 | driver. | |
218 | .It Fl i Ar iface Fl R | |
219 | Display RSSI map that converts from the RSSI index to percent and dBm. | |
220 | .It Fl i Ar iface Fl t Cm 0 Ns - Ns Cm 4 | |
221 | Select transmit speed. | |
222 | The available settings are as follows: | |
223 | .Bl -column ".Em TX rate" -offset indent | |
224 | .Em "TX rate NIC speed" | |
225 | .It Cm 0 Ta "Auto -- NIC selects optimal speed" | |
226 | .It Cm 1 Ta "1Mbps fixed" | |
227 | .It Cm 2 Ta "2Mbps fixed" | |
228 | .It Cm 3 Ta "5.5Mbps fixed" | |
229 | .It Cm 4 Ta "11Mbps fixed" | |
230 | .El | |
231 | .Pp | |
232 | Note that the 5.5 and 11Mbps settings are only supported on the 4800 | |
233 | series adapters: the 4500 series adapters have a maximum speed of 2Mbps. | |
234 | .It Fl i Ar iface Fl s Cm 0 Ns - Ns Cm 3 | |
235 | Set power save mode. | |
236 | Valid selections are as follows: | |
237 | .Bl -column ".Em Selection" -offset indent | |
238 | .Em "Selection Power save mode" | |
239 | .It Cm 0 Ta "None - power save disabled" | |
240 | .It Cm 1 Ta "Constantly awake mode (CAM)" | |
241 | .It Cm 2 Ta "Power Save Polling (PSP)" | |
242 | .It Cm 3 Ta "Fast Power Save Polling (PSP-CAM)" | |
243 | .El | |
244 | .Pp | |
245 | Note that for IBSS (ad-hoc) mode, only PSP mode is supported, and only | |
246 | if the ATIM window is non-zero. | |
247 | .It Fl i Ar iface Oo Fl v Cm 1 Ns - Ns Cm 4 Oc Fl a Ar AP | |
248 | Set preferred access point. | |
249 | The | |
250 | .Ar AP | |
251 | is specified as a MAC address consisting of 6 hexadecimal values | |
252 | separated by colons. | |
253 | By default, the | |
254 | .Fl a | |
255 | option only sets the first entry in the AP list. | |
256 | The | |
257 | .Fl v | |
258 | modifier can be used to specify exactly which AP list entry is to be | |
259 | modified. | |
260 | If the | |
261 | .Fl v | |
262 | flag is not used, the first AP list entry will be changed. | |
263 | .It Fl i Ar iface Fl b Ar beacon_period | |
264 | Set the ad-hoc mode beacon period. | |
265 | The | |
266 | .Ar beacon_period | |
267 | is specified in milliseconds. | |
268 | The default is 100ms. | |
269 | .It Fl i Ar iface Oo Fl v Cm 0 | 1 Oc Fl d Cm 0 Ns - Ns Cm 3 | |
270 | Select the antenna diversity. | |
271 | Aironet devices can be configured with up | |
272 | to two antennas, and transmit and receive diversity can be configured | |
273 | accordingly. | |
274 | Valid selections are as follows: | |
275 | .Bl -column ".Em Selection" -offset indent | |
276 | .Em "Selection Diversity" | |
277 | .It Cm 0 Ta "Select factory default diversity" | |
278 | .It Cm 1 Ta "Antenna 1 only" | |
279 | .It Cm 2 Ta "Antenna 2 only" | |
280 | .It Cm 3 Ta "Antenna 1 and 2" | |
281 | .El | |
282 | .Pp | |
283 | The receive and transmit diversity can be set independently. | |
284 | The user | |
285 | must specify which diversity setting is to be modified by using the | |
286 | .Fl v | |
287 | option: selection | |
288 | .Cm 0 | |
289 | sets the receive diversity and | |
290 | .Cm 1 | |
291 | sets the transmit diversity. | |
292 | .It Fl i Ar iface Fl e Cm 0 Ns - Ns Cm 4 | |
293 | Set the transmit WEP key to use. | |
294 | Note that until this command is issued, the device will use the | |
295 | last key programmed. | |
296 | The transmit key is stored in NVRAM. | |
297 | Currently | |
298 | set transmit key can be checked via | |
299 | .Fl C | |
300 | option. | |
301 | Selection | |
302 | .Cm 4 | |
303 | sets the card in | |
304 | .Dq "Home Network Mode" | |
305 | and uses the home key. | |
306 | .It Fl i Ar iface Oo Fl v Cm 0 Ns - Ns Cm 8 Oc Fl k Ar key | |
307 | Set a WEP key. | |
308 | For 40 bit prefix 10 hex character with 0x. | |
309 | For 128 bit prefix 26 hex character with 0x. | |
310 | Use | |
311 | ||
312 | as the key to erase the key. | |
313 | Supports 4 keys; even numbers are for permanent keys | |
314 | and odd number are for temporary keys. | |
315 | For example, | |
316 | .Fl v Cm 1 | |
317 | sets the first temporary key. | |
318 | (A | |
319 | .Dq permanent | |
320 | key is stored in NVRAM; a | |
321 | .Dq temporary | |
322 | key is not.) | |
323 | Note that the device will use the most recently-programmed key by default. | |
324 | Currently set keys can be checked via | |
325 | .Fl C | |
326 | option, only the sizes of the | |
327 | keys are returned. | |
328 | The value of | |
329 | .Cm 8 | |
330 | is for the home key. | |
331 | Note that the value for the home key can be read back from firmware. | |
332 | .It Fl i Ar iface Fl K Cm 0 Ns - Ns Cm 2 | |
333 | Set authorization type. | |
334 | Use | |
335 | .Cm 0 | |
336 | for none, | |
337 | .Cm 1 | |
338 | for | |
339 | .Dq Open , | |
340 | .Cm 2 | |
341 | for | |
342 | .Dq "Shared Key" . | |
343 | .It Fl i Ar iface Fl W Cm 0 Ns - Ns Cm 2 | |
344 | Enable WEP. | |
345 | Use | |
346 | .Cm 0 | |
347 | for no WEP, | |
348 | .Cm 1 | |
349 | to enable full WEP, | |
350 | .Cm 2 | |
351 | for mixed cell. | |
352 | .It Fl i Ar iface Fl L Ar user_name | |
353 | Enable LEAP and query for password. | |
354 | It will check to see if it has authenticated for up to 60s. | |
355 | To disable LEAP, set WEP mode. | |
356 | .It Fl i Ar iface Fl j Ar netjoin_timeout | |
357 | Set the ad-hoc network join timeout. | |
358 | When a station is first activated | |
359 | in ad-hoc mode, it will search out a | |
360 | .Dq master | |
361 | station with the desired | |
362 | SSID and associate with it. | |
363 | If the station is unable to locate another | |
364 | station with the same SSID after a suitable timeout, it sets itself up | |
365 | as the | |
366 | .Dq master | |
367 | so that other stations may associate with it. | |
368 | This | |
369 | timeout defaults to 10000 milliseconds (10 seconds) but may be changed | |
370 | with this option. | |
371 | The timeout should be specified in milliseconds. | |
372 | .It Fl i Ar iface Fl l Ar station_name | |
373 | Set the station name used internally by the NIC. | |
374 | The | |
375 | .Ar station_name | |
376 | can be any text string up to 16 characters in length. | |
377 | The default name | |
378 | is set by the driver to | |
379 | .Dq Li FreeBSD . | |
380 | .It Fl i Ar iface Fl m Ar mac_address | |
381 | Set the station address for the specified interface. | |
382 | The | |
383 | .Ar mac_address | |
384 | is specified as a series of six hexadecimal values separated by colons, | |
385 | e.g.: | |
386 | .Li 00:60:1d:12:34:56 . | |
387 | This programs the new address into the card | |
388 | and updates the interface as well. | |
389 | .It Fl i Ar iface Oo Fl v Cm 1 Ns - Ns Cm 3 Oc Fl n Ar SSID | |
390 | Set the desired SSID (network name). | |
391 | There are three SSIDs which allows | |
392 | the NIC to work with access points at several locations without needing | |
393 | to be reconfigured. | |
394 | The NIC checks each SSID in sequence when searching | |
395 | for a match. | |
396 | The SSID to be changed can be specified with the | |
397 | .Fl v | |
398 | modifier option. | |
399 | If the | |
400 | .Fl v | |
401 | flag isn't used, the first SSID in the list is set. | |
402 | .It Fl i Ar iface Fl o Cm 0 | 1 | |
403 | Set the operating mode of the Aironet interface. | |
404 | Valid selections are | |
405 | .Cm 0 | |
406 | for ad-hoc mode and | |
407 | .Cm 1 | |
408 | for infrastructure mode. | |
409 | The default driver setting is for infrastructure | |
410 | mode. | |
411 | .It Fl i Ar iface Fl p Ar tx_power | |
412 | Set the transmit power level in milliwatts. | |
413 | Valid power settings | |
414 | vary depending on the actual NIC and can be viewed by dumping the | |
415 | device capabilities with the | |
416 | .Fl I | |
417 | flag. | |
418 | Typical values are 1, 5, 20, 50 and 100mW. | |
419 | Selecting 0 sets | |
420 | the factory default. | |
421 | .It Fl i Ar iface Fl c Ar frequency | |
422 | Set the radio frequency of a given interface. | |
423 | The | |
424 | .Ar frequency | |
425 | should be specified as a channel ID as shown in the table below. | |
426 | The | |
427 | list of available frequencies is dependent on radio regulations specified | |
428 | by regional authorities. | |
429 | Recognized regulatory authorities include | |
430 | the FCC (United States), ETSI (Europe), France and Japan. | |
431 | Frequencies | |
432 | in the table are specified in MHz. | |
433 | .Bl -column ".Em Channel ID" ".Em FCC" ".Em ETSI" ".Em France" ".Em Japan" -offset indent | |
434 | .Em "Channel ID FCC ETSI France Japan" | |
435 | .It Cm 1 Ta 2412 Ta 2412 Ta - Ta - | |
436 | .It Cm 2 Ta 2417 Ta 2417 Ta - Ta - | |
437 | .It Cm 3 Ta 2422 Ta 2422 Ta - Ta - | |
438 | .It Cm 4 Ta 2427 Ta 2427 Ta - Ta - | |
439 | .It Cm 5 Ta 2432 Ta 2432 Ta - Ta - | |
440 | .It Cm 6 Ta 2437 Ta 2437 Ta - Ta - | |
441 | .It Cm 7 Ta 2442 Ta 2442 Ta - Ta - | |
442 | .It Cm 8 Ta 2447 Ta 2447 Ta - Ta - | |
443 | .It Cm 9 Ta 2452 Ta 2452 Ta - Ta - | |
444 | .It Cm 10 Ta 2457 Ta 2457 Ta 2457 Ta - | |
445 | .It Cm 11 Ta 2462 Ta 2462 Ta 2462 Ta - | |
446 | .It Cm 12 Ta - Ta 2467 Ta 2467 Ta - | |
447 | .It Cm 13 Ta - Ta 2472 Ta 2472 Ta - | |
448 | .It Cm 14 Ta - Ta - Ta - Ta 2484 | |
449 | .El | |
450 | .Pp | |
451 | If an illegal channel is specified, the | |
452 | NIC will revert to its default channel. | |
453 | For NICs sold in the United States | |
454 | and Europe, the default channel is 3. | |
455 | For NICs sold in France, the default | |
456 | channel is 11. | |
457 | For NICs sold in Japan, the only available channel is 14. | |
458 | Note that two stations must be set to the same channel in order to | |
459 | communicate. | |
460 | .It Fl i Ar iface Fl f Ar fragmentation_threshold | |
461 | Set the fragmentation threshold in bytes. | |
462 | This threshold controls the | |
463 | point at which outgoing packets will be split into multiple fragments. | |
464 | If a single fragment is not sent successfully, only that fragment will | |
465 | need to be retransmitted instead of the whole packet. | |
466 | The fragmentation | |
467 | threshold can be anything from 64 to 2312 bytes. | |
468 | The default is 2312. | |
469 | .It Fl i Ar iface Fl r Ar RTS_threshold | |
470 | Set the RTS/CTS threshold for a given interface. | |
471 | This controls the | |
472 | number of bytes used for the RTS/CTS handshake boundary. | |
473 | The | |
474 | .Ar RTS_threshold | |
475 | can be any value between 0 and 2312. | |
476 | The default is 2312. | |
477 | .It Fl i Ar iface Fl M Cm 0 Ns - Ns Cm 15 | |
478 | Set monitor mode via bit mask, meaning: | |
479 | .Pp | |
480 | .Bl -tag -width indent -offset indent -compact | |
481 | .It Em Bit | |
482 | .Em Meaning | |
483 | .It 0 | |
484 | to not dump 802.11 packet. | |
485 | .It 1 | |
486 | to enable 802.11 monitor. | |
487 | .It 2 | |
488 | to monitor any SSID. | |
489 | .It 4 | |
490 | to not skip beacons, monitor beacons produces a high system load. | |
491 | .It 8 | |
492 | to enable full Aironet header returned via BPF. | |
493 | Note it appears that a SSID must be set. | |
494 | .El | |
495 | .It Fl h | |
496 | Print a list of available options and sample usage. | |
497 | .El | |
498 | .Sh SECURITY NOTES | |
499 | WEP | |
500 | .Pq Dq "wired equivalent privacy" | |
501 | is based on the RC4 algorithm, | |
502 | using a 24 bit initialization vector. | |
503 | .Pp | |
504 | RC4 is supposedly vulnerable to certain known plaintext attacks, | |
505 | especially with 40 bit keys. | |
506 | So the security of WEP in part depends on how much known plaintext | |
507 | is transmitted. | |
508 | .Pp | |
509 | Because of this, although counter-intuitive, using | |
510 | .Dq "shared key" | |
511 | authentication (which involves sending known plaintext) is less | |
512 | secure than using | |
513 | .Dq open | |
514 | authentication when WEP is enabled. | |
515 | .Pp | |
516 | Devices may alternate among all of the configured WEP keys when | |
517 | transmitting packets. | |
518 | Therefore, all configured keys (up to four) must agree. | |
519 | .Sh EXAMPLES | |
520 | .Bd -literal -offset indent | |
521 | ancontrol -i an0 -v 0 -k 0x12345678901234567890123456 | |
522 | ancontrol -i an0 -K 2 | |
523 | ancontrol -i an0 -W 1 | |
524 | ancontrol -i an0 -e 0 | |
525 | .Ed | |
526 | .Pp | |
527 | Sets a WEP key 0, enables | |
528 | .Dq "Shared Key" | |
529 | authentication, enables full WEP | |
530 | and uses transmit key 0. | |
531 | .Sh SEE ALSO | |
532 | .Xr an 4 , | |
533 | .Xr ifconfig 8 | |
534 | .Sh HISTORY | |
535 | The | |
536 | .Nm | |
537 | utility first appeared in | |
538 | .Fx 4.0 . | |
49781055 SW |
539 | .Sh AUTHORS |
540 | The | |
541 | .Nm | |
542 | utility was written by | |
e65bc1c3 | 543 | .An Bill Paul Aq Mt wpaul@ee.columbia.edu . |
984263bc MD |
544 | .Sh BUGS |
545 | The statistics counters do not seem to show the amount of transmit | |
546 | and received frames as increasing. | |
547 | This is likely due to the fact that | |
548 | the | |
549 | .Xr an 4 | |
550 | driver uses unmodified packet mode instead of letting the NIC perform | |
551 | 802.11/ethernet encapsulation itself. | |
552 | .Pp | |
553 | Setting the channel does not seem to have any effect. |