tag:blogger.com,1999:blog-5880036417091759998.comments2023-03-29T06:24:20.391-07:00FreakquencyBruce Hubberthttp://www.blogger.com/profile/08340537883829712230noreply@blogger.comBlogger72125tag:blogger.com,1999:blog-5880036417091759998.post-10780100808229390362013-04-13T23:12:45.130-07:002013-04-13T23:12:45.130-07:00Bruce,
small correction to the sentence "the...Bruce, <br />small correction to the sentence "the management traffic (beacons, probe requests, probe responses, etc) are 1Mb/s CCK modulated and all data traffic is faster (6-54Mb/s) OFDM modulated".<br /><br />Correction: Error is in the phrase "1Mb/s CCK modulated". Please note that 1Mbps is not CCK modulated . This is BPSK modulated. SO the phrase should be " 1Mb/s PSK modulated".muralihttps://www.blogger.com/profile/01026581263077533495noreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-28038944670145865532013-03-12T08:43:23.036-07:002013-03-12T08:43:23.036-07:00Good one!Good one!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-34167338694144430442013-03-11T10:40:45.453-07:002013-03-11T10:40:45.453-07:00Great--on the Internet informative blog posts like...Great--on the Internet informative blog posts like this keep on giving. This really gave me the clues I needed to fix a wireless problem at home.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-13035161222356878462012-03-09T09:34:36.333-08:002012-03-09T09:34:36.333-08:00The AirCheck does a great job at this. Completely ...The AirCheck does a great job at this. Completely filling the need of a very reactive signal meter. There are a ton of great apps that do what you need:<br /><br />Android: https://play.google.com/store/apps/details?id=com.farproc.wifi.analyzer<br />Mac: http://itunes.apple.com/us/app/wifi-explorer/id494803304?mt=12 or http://itunes.apple.com/us/app/wifi-scanner/id411680127?mt=12<br />There used to be some great apps for iPhone but now there are not: http://www.aspecto-software.com/wififofum/<br />Windows: http://www.metageek.net/products/inssider/<br /><br />There is also this list: Mac Apps for WLAN ProsBruce Hubberthttps://www.blogger.com/profile/08340537883829712230noreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-67446957770528438112012-03-09T07:27:30.473-08:002012-03-09T07:27:30.473-08:00This is easily the best rogue AP detection post I ...This is easily the best rogue AP detection post I have ever read. I was wondering if you could suggest any open source tools that have a graph like you suggest using. Also, what is your opinion of the Fluke Aircheck's ability to perform this kind of rogue AP tracking/elimination. Thank!Stevehttps://www.blogger.com/profile/04518780373441043809noreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-84400948260962182982011-09-17T16:57:10.367-07:002011-09-17T16:57:10.367-07:00I see that they now have the demo of a WiFi card b...I see that they now have the demo of a WiFi card being able to detect Bluetooth, Cordless phones, Microwaves, Xbox, Videocams<br />http://www.youtube.com/watch?v=VuAzXhcA8h8 and the paper here: goo.gl/AwNSNAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-87868545984820386552011-08-25T02:00:28.076-07:002011-08-25T02:00:28.076-07:00Agreed. The latest gen Atheros cards do provide th...Agreed. The latest gen Atheros cards do provide this function and previous gen Intel cards also did. Unfortunately, they represent a very small minority of tools available to people today and a very many are still thinking Noise is Interference. I hope that eventually all adapters will provide a true FFT interference score as it only makes sense.<br /><br />-BHBruce Hubberthttps://www.blogger.com/profile/08340537883829712230noreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-2831803993623538962011-08-25T01:26:28.382-07:002011-08-25T01:26:28.382-07:00Great post. The thing about wireless cards reporti...Great post. The thing about wireless cards reporting non-wifi interference is not true --- newer atheros cards (e.g., AR9280) provide the functionality to get FFTs which can be used to measure non-WiFi interference. People at UW Madison have done this; They were able to detect non-WiFi devices like microwaves, analog phones, zigbee, cordless phones and bluetooth devices --- all using a WiFi card!!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-30744835622320724002011-08-15T11:28:07.191-07:002011-08-15T11:28:07.191-07:00Great post, Bruce. Thanks for sharing.Great post, Bruce. Thanks for sharing.Marcus Burtonhttp://www.cwnp.comnoreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-82237751941168730662011-08-14T22:21:49.755-07:002011-08-14T22:21:49.755-07:00wow. that blew my mind!wow. that blew my mind!Tone Lochttps://www.blogger.com/profile/05970117286957011892noreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-31602373113498902962011-08-13T07:14:58.616-07:002011-08-13T07:14:58.616-07:00Amen Brother!
I've been preaching NOT to trus...Amen Brother!<br /><br />I've been preaching NOT to trust the 'Noise Variable' for nearly a decade. Thanks for writing a blog to help more folks understand.<br /><br />KeithKeith Parsonshttps://www.blogger.com/profile/00403558343082565874noreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-17843359502116434472011-08-02T23:24:12.271-07:002011-08-02T23:24:12.271-07:00this rocks! thanks for pointing this out. i'...this rocks! thanks for pointing this out. i'm only saddened that I can't celebrate this again next year.Tone Lochttps://www.blogger.com/profile/05970117286957011892noreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-61721094034412145692011-02-11T11:58:40.668-08:002011-02-11T11:58:40.668-08:00i learned a lot. thanks!i learned a lot. thanks!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-64270822618900694052010-12-13T21:29:44.863-08:002010-12-13T21:29:44.863-08:00Netmind77, agreed however, a somewhat expensive so...Netmind77, agreed however, a somewhat expensive solution when all you really need is a signal strength meter. Also, you are suggesting conducting a passive survey to find a rogue. this is usually an hour or more of your time. Maybe 30 minutes if the building is small.<br /><br />With the method I posted above, I can usually find a rogue AP in under a minute, 2 at the outside.<br /><br />BruceBruce Hubberthttps://www.blogger.com/profile/08340537883829712230noreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-88056531203298456212010-12-13T13:57:10.050-08:002010-12-13T13:57:10.050-08:00Yet another option would be using a site survey to...Yet another option would be using a site survey tool, such as TamoGraph Site Survey or Ekahau Site Survey. They use pretty smart algorithms that auto-place all APs (including rogue ones) on the floor plan.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-52362929854278766742010-12-13T13:36:56.568-08:002010-12-13T13:36:56.568-08:00I've found, after teaching over 3,000 people h...I've found, after teaching over 3,000 people how to use the AirMagnet WiFi Analyzer 'Find' Tool... that an omni antenna is totally fine.<br /><br />Usually students can find the 'hidden' AP in under 5 minutes. <br /><br />No need for the overly complex and confusing use of a directional antenna.<br /><br />To answer the previous comment:<br />If the AP not on the floor you are on, it will have a much smaller 'circle' than you'd have seen when tracking down APs on the same floor. A dead give-away.<br /><br />The real trick is to PRACTICE when the pressure isn't on. Prepare and be experienced in 'finding' APs *before* you really need the skill. <br /><br />Most of my clients learn this skill in under 30 minutes, then another 30 minutes of practicing and you'll be good to go!<br /><br />KeithKeith Parsonshttps://www.blogger.com/profile/00403558343082565874noreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-36579435260511002282010-12-13T13:34:31.299-08:002010-12-13T13:34:31.299-08:00Thanks! Let me know if I got anything wrong.Thanks! Let me know if I got anything wrong.Bruce Hubberthttps://www.blogger.com/profile/08340537883829712230noreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-80054854181981949272010-12-13T13:29:47.990-08:002010-12-13T13:29:47.990-08:00Nicely done Bruce.
You explained RTS/CTS very we...Nicely done Bruce. <br /><br />You explained RTS/CTS very well. I'll have to share this link with my students!<br /><br />KeithKeith Parsonshttps://www.blogger.com/profile/00403558343082565874noreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-78285628085185356892010-11-05T05:28:28.757-07:002010-11-05T05:28:28.757-07:00Hello,
This is a great explanation but I have ...Hello,<br /><br /> This is a great explanation but I have one question when trying to find a rogue device, what do you do when there is more than one floor in the building? What if the Rogue AP is on the floor above or below you, with your technique how do you find it?<br /><br />email: riccardo_cv@hotmail.comAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-597702572418671072010-08-17T08:04:30.542-07:002010-08-17T08:04:30.542-07:00Wow, how weird it is to look back on this and real...Wow, how weird it is to look back on this and realize that the iPad was right around the corner.Bruce Hubberthttps://www.blogger.com/profile/08340537883829712230noreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-13819202251466021512010-04-20T10:53:25.524-07:002010-04-20T10:53:25.524-07:00Totally unethical to pick up someone's phone f...Totally unethical to pick up someone's phone from the bar and do anything but try to get it back to the owner. Totally unethical to pay for that stolen property.<br /><br />This could be another brilliant marketing move by Apple, you know.<br /><br />Regarding the hackers capitalizing on the name so quickly, I'm sure they are just automatons noticing "Gray Powell" in several well-digged articles... not that that argues against surfing carefully though.Paul McNetthttp://paulmcnett.comnoreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-71011509828069176952010-02-20T14:45:55.412-08:002010-02-20T14:45:55.412-08:00Obviously, I was writing fiction. I totally agree ...Obviously, I was writing fiction. I totally agree that we should limit driving distractions as much as possible. I cannot fathom why we should want all this while driving. I have a pal who watches movies on DVD while driving. I, predictably, do not ride with him, especially if he is watching the Fast and the Furious!<br /><br />However I did finally get an iPhone 3Gs. I love it. It connects to my cars bluetooth and if I get a call I no longer need to look down to answer it I just click a button on my steering wheel and talk, hands free. Much safer, I imagine.Bruce Hubberthttps://www.blogger.com/profile/08340537883829712230noreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-83065770294546958972010-02-19T05:56:27.613-08:002010-02-19T05:56:27.613-08:00I am not appreciate your work driving and uses mo...I am not appreciate your work driving and uses mobile is very dangerous and there is some one waiting for you.Iphone with blue tooth all I agree but I think it just break your attention towards driving!<br /> well what I say about this amazing new smart iphone!it is just amazing.and no one can think about these much features in one small mobile included!<br /><a href="http://www.r4-ds.es/" rel="nofollow">acekard 2i</a>Johnhttps://www.blogger.com/profile/12157569798268729191noreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-53743392002881483002010-01-25T05:08:50.840-08:002010-01-25T05:08:50.840-08:00I read all comments and am a great phone lover ......I read all comments and am a great phone lover .... this n800 is truly amazing. extraordianry features and style .... just in love with it.<br /><br /><a href="http://www.r4-ds.co.kr" rel="nofollow">buy r4i software</a>Unknownhttps://www.blogger.com/profile/13169103999262999750noreply@blogger.comtag:blogger.com,1999:blog-5880036417091759998.post-63761140675458250372010-01-13T09:15:08.907-08:002010-01-13T09:15:08.907-08:00this from Yahoo: "We condemn any attempts to ...this from Yahoo: "We condemn any attempts to infiltrate company networks to obtain user information," the Yahoo spokeswoman said in a prepared statement. "We stand aligned that these kinds of attacks are deeply disturbing and strongly believe that the violation of user privacy is something that we as Internet pioneers must all oppose."<br /><br />http://online.wsj.com/article/SB10001424052748704362004575000953603907936.htmlBruce Hubberthttps://www.blogger.com/profile/08340537883829712230noreply@blogger.com