Thread: [Aironet] Received signal strength in dBm
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From: sheetal d. <sh...@ho...> - 2001-11-29 21:30:21
|
Hi Everyone! I'm using the Aironet 350 series card on Linux 2.4.2 kernel and i'm using= the driver bundled in pcmcia-cs-3.1.29 package from sourceforge.net I wish to obtain the received signal strength measurement in dBm, but the= driver airo.c returns these values to iwspy/iwconfig as relative values= wrt 100 i.e in the form 85/100. Are there any patches for the driver ava= ilable so that I could make the driver return the RSSI in dBm and not as = a relative value? If not, can anyone suggest a method for converting thes= e relative values to dBm? I would really appreciate any help I get :) !! Thanks Sheetal Sheetalkumar Doshi Graduate Student/Research Assistant University of Colorado at BoulderGet more from the Web. FREE MSN Explore= r download : http://explorer.msn.com |
From: darren t. <teo...@ya...> - 2001-11-30 06:29:10
|
Dear All, I am running Red-Hat7.2 and have a Cisco 350 WLAN card. I think i am using the 2.4.7-10 kernel's drivers(i did not change anything since installation 2 days ago - but how can i check which PCMCIA and WLAN card driver i am actually using?) I am trying to get my Aironet 350 card to go in promiscuous mode by "echoing" "Mode: rfmon" into /proc/drivers/aironet/eth0/Config. The echo command runs but i noticed that the Config file constantly being re-written by some unknown process. Ques: Can i get the card to work in Prom mode via this method? if so...what am i doing or assuming wrong? Thanx and regards Darren __________________________________________________ Do You Yahoo!? Yahoo! GeoCities - quick and easy web site hosting, just $8.95/month. http://geocities.yahoo.com/ps/info1 |
From: Bryan D. P. <bd...@cs...> - 2001-11-30 12:53:59
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Check the mac address of your card (using ifconfig). If it appears to be too long (i.e., too many octets...you'll know exactly what I mean if you see it) then you should be good to go. If you need some good instructions on getting your card to work in rfmon mode, you may want to check out: http://www.cs.umd.edu/~npetroni/airo.html This page contains a brief howto. -bryan On Friday 30 November 2001 01:29 am, darren teo wrote: > Dear All, > > I am running Red-Hat7.2 and have a Cisco 350 WLAN > card. > I think i am using the 2.4.7-10 kernel's drivers(i did > not change anything since installation 2 days ago - > but how can i check which PCMCIA and WLAN card driver > i am actually using?) > > I am trying to get my Aironet 350 card to go in > promiscuous mode by "echoing" "Mode: rfmon" into > /proc/drivers/aironet/eth0/Config. > > The echo command runs but i noticed that the Config > file constantly being re-written by some unknown > process. > > Ques: Can i get the card to work in Prom mode via this > method? if so...what am i doing or assuming wrong? > > Thanx and regards > Darren |
From: Benjamin R. <br...@al...> - 2001-11-30 19:31:12
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Yes unfortunately we have a bug that rfmon is not reflected when you cat Config. (It will be fixed soon.) Remember, all the files in /proc are virtual. The Config probably isn't getting overwritten, it's just not reflecting your change correctly. The ifconfig suggested by Bryan is a definate indication of which mode you are in. ben Bryan D. Payne wrote: > Check the mac address of your card (using ifconfig). If it appears to be too > long (i.e., too many octets...you'll know exactly what I mean if you see it) > then you should be good to go. > > If you need some good instructions on getting your card to work in rfmon > mode, you may want to check out: > > http://www.cs.umd.edu/~npetroni/airo.html > > This page contains a brief howto. > > -bryan > > > On Friday 30 November 2001 01:29 am, darren teo wrote: > >>Dear All, >> >>I am running Red-Hat7.2 and have a Cisco 350 WLAN >>card. >>I think i am using the 2.4.7-10 kernel's drivers(i did >>not change anything since installation 2 days ago - >>but how can i check which PCMCIA and WLAN card driver >>i am actually using?) >> >>I am trying to get my Aironet 350 card to go in >>promiscuous mode by "echoing" "Mode: rfmon" into >>/proc/drivers/aironet/eth0/Config. >> >>The echo command runs but i noticed that the Config >>file constantly being re-written by some unknown >>process. >> >>Ques: Can i get the card to work in Prom mode via this >>method? if so...what am i doing or assuming wrong? >> >>Thanx and regards >>Darren >> > _______________________________________________ > Aironet mailing list - Ai...@cs... > http://csl.cse.ucsc.edu/mailman/listinfo/aironet > |
From: darren <teo...@ya...> - 2001-12-01 03:40:38
|
Hi! Using ifconfig, the MAC address appears to be correct...i.e. if "00:40:96:51:95:45" is correct to you guys...Does it mean that I am still not in the Monitor Mode? My setup is Red-Hat 7.2(Kernel 2.4.7-10), Cisco Aironet 350 Card, Ethereal 0.8.20, LibpcapCVS(26-11-2001). Which version of which module(Driver?) does the "that rfmon is not reflected" affect? Would it be solved if I "downgrade" my driver version? Anyone got any success with any combinations before? Maybe you can share your configuration with us? Thank you all for helping me out. Regards DArren -----Original Message----- From: Benjamin Reed [mailto:br...@al...] Sent: Saturday, December 01, 2001 3:31 AM To: Bryan D. Payne Cc: darren teo; ai...@en... Subject: Re: [Aironet] aironet350 and prom mode Yes unfortunately we have a bug that rfmon is not reflected when you cat Config. (It will be fixed soon.) Remember, all the files in /proc are virtual. The Config probably isn't getting overwritten, it's just not reflecting your change correctly. The ifconfig suggested by Bryan is a definate indication of which mode you are in. ben Bryan D. Payne wrote: > Check the mac address of your card (using ifconfig). If it appears to be too > long (i.e., too many octets...you'll know exactly what I mean if you see it) > then you should be good to go. > > If you need some good instructions on getting your card to work in rfmon > mode, you may want to check out: > > http://www.cs.umd.edu/~npetroni/airo.html > > This page contains a brief howto. > > -bryan > > > On Friday 30 November 2001 01:29 am, darren teo wrote: > >>Dear All, >> >>I am running Red-Hat7.2 and have a Cisco 350 WLAN >>card. >>I think i am using the 2.4.7-10 kernel's drivers(i did >>not change anything since installation 2 days ago - >>but how can i check which PCMCIA and WLAN card driver >>i am actually using?) >> >>I am trying to get my Aironet 350 card to go in >>promiscuous mode by "echoing" "Mode: rfmon" into >>/proc/drivers/aironet/eth0/Config. >> >>The echo command runs but i noticed that the Config >>file constantly being re-written by some unknown >>process. >> >>Ques: Can i get the card to work in Prom mode via this >>method? if so...what am i doing or assuming wrong? >> >>Thanx and regards >>Darren >> > _______________________________________________ > Aironet mailing list - Ai...@cs... > http://csl.cse.ucsc.edu/mailman/listinfo/aironet > _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com |
From: darren <teo...@ya...> - 2001-12-04 15:43:08
|
Dear All, Is there no way I can get rfmon to work with RH7.2 and the Aironet350 right now?? Can I "downgrade" to the 0.2 drivers that everyone has been reporting success with? If so, where can I get them? Also...will it help if I downgrade my entire kernel to some known working version??...if so...which one? Also, is the driver bug mentioned by Ben a serious one?....issit easy to do a DIY fix??...hehe...getting ambitious for a newbie...:) I need to show my school project supervisor some bits of traffic on my WLAN setup pretty some and I am getting anxious. Any help will be greatly appreciated. Thanx and Regards Darren p.s. read the source code and understood why the MAC address is a good indication already. Thanx Bryan. -----Original Message----- From: Benjamin Reed [mailto:br...@al...] Sent: Saturday, December 01, 2001 3:31 AM To: Bryan D. Payne Cc: darren teo; ai...@en... Subject: Re: [Aironet] aironet350 and prom mode Yes unfortunately we have a bug that rfmon is not reflected when you cat Config. (It will be fixed soon.) Remember, all the files in /proc are virtual. The Config probably isn't getting overwritten, it's just not reflecting your change correctly. The ifconfig suggested by Bryan is a definate indication of which mode you are in. ben Bryan D. Payne wrote: > Check the mac address of your card (using ifconfig). If it appears to be too > long (i.e., too many octets...you'll know exactly what I mean if you see it) > then you should be good to go. > > If you need some good instructions on getting your card to work in rfmon > mode, you may want to check out: > > http://www.cs.umd.edu/~npetroni/airo.html > > This page contains a brief howto. > > -bryan > > > On Friday 30 November 2001 01:29 am, darren teo wrote: > >>Dear All, >> >>I am running Red-Hat7.2 and have a Cisco 350 WLAN >>card. >>I think i am using the 2.4.7-10 kernel's drivers(i did >>not change anything since installation 2 days ago - >>but how can i check which PCMCIA and WLAN card driver >>i am actually using?) >> >>I am trying to get my Aironet 350 card to go in >>promiscuous mode by "echoing" "Mode: rfmon" into >>/proc/drivers/aironet/eth0/Config. >> >>The echo command runs but i noticed that the Config >>file constantly being re-written by some unknown >>process. >> >>Ques: Can i get the card to work in Prom mode via this >>method? if so...what am i doing or assuming wrong? >> >>Thanx and regards >>Darren >> > _______________________________________________ > Aironet mailing list - Ai...@cs... > http://csl.cse.ucsc.edu/mailman/listinfo/aironet > _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com |
From: Peter K. L. <pk...@du...> - 2001-12-04 16:03:22
|
FYI, the guide referred to you by Bryan D. Payne seems to be accurate. And no, you shouldn't need to downgrade your entire kernel. What you can try is to get the latest aironet drivers airo.c, airo_cs.c from sourceforge airo-linux project and recompile that module using either kernel recompilation (which can take a bit long), or via pcmcia-cs tree recompilation. But this might not even be necessary... Either way, the guide by Bryan is helpful. Yes, the Config file does not reflect changes properly, but what you might need to do after you run the couple of echo rfmon commands is to bring your wireless interface down by issuing, ifconfig eth0(or whatever) down, and bringing it back up with ifconfig eth0(same) up. It is usually at this point that if the proper driver is loaded, the following ifconfig call displays strange strings of octets for your wireless interface. I also have a brief guide on my site: http://www.elixar.net/wireless Peter K. Lee sa...@el... darren wrote: > Dear All, > > Is there no way I can get rfmon to work with RH7.2 and the Aironet350 > right now?? > > Can I "downgrade" to the 0.2 drivers that everyone has been reporting > success with? If so, where can I get them? > > Also...will it help if I downgrade my entire kernel to some known > working version??...if so...which one? > > Also, is the driver bug mentioned by Ben a serious one?....issit easy to > do a DIY fix??...hehe...getting ambitious for a newbie...:) > > I need to show my school project supervisor some bits of traffic on my > WLAN setup pretty some and I am getting anxious. > > Any help will be greatly appreciated. > > Thanx and Regards > Darren > > p.s. read the source code and understood why the MAC address is a good > indication already. Thanx Bryan. > > -----Original Message----- > From: Benjamin Reed [mailto:br...@al...] > Sent: Saturday, December 01, 2001 3:31 AM > To: Bryan D. Payne > Cc: darren teo; ai...@en... > Subject: Re: [Aironet] aironet350 and prom mode > > Yes unfortunately we have a bug that rfmon is not reflected when you cat > > Config. (It will be fixed soon.) Remember, all the files in /proc are > virtual. The Config probably isn't getting overwritten, it's just not > reflecting your change correctly. The ifconfig suggested by Bryan is a > definate indication of which mode you are in. > > ben > > Bryan D. Payne wrote: > > >>Check the mac address of your card (using ifconfig). If it appears to >> > be too > >>long (i.e., too many octets...you'll know exactly what I mean if you >> > see it) > >>then you should be good to go. >> >>If you need some good instructions on getting your card to work in >> > rfmon > >>mode, you may want to check out: >> >>http://www.cs.umd.edu/~npetroni/airo.html >> >>This page contains a brief howto. >> >>-bryan >> >> >>On Friday 30 November 2001 01:29 am, darren teo wrote: >> >> >>>Dear All, >>> >>>I am running Red-Hat7.2 and have a Cisco 350 WLAN >>>card. >>>I think i am using the 2.4.7-10 kernel's drivers(i did >>>not change anything since installation 2 days ago - >>>but how can i check which PCMCIA and WLAN card driver >>>i am actually using?) >>> >>>I am trying to get my Aironet 350 card to go in >>>promiscuous mode by "echoing" "Mode: rfmon" into >>>/proc/drivers/aironet/eth0/Config. >>> >>>The echo command runs but i noticed that the Config >>>file constantly being re-written by some unknown >>>process. >>> >>>Ques: Can i get the card to work in Prom mode via this >>>method? if so...what am i doing or assuming wrong? >>> >>>Thanx and regards >>>Darren >>> >>> >>_______________________________________________ >>Aironet mailing list - Ai...@cs... >>http://csl.cse.ucsc.edu/mailman/listinfo/aironet >> >> > > > > _________________________________________________________ > Do You Yahoo!? > Get your free @yahoo.com address at http://mail.yahoo.com > > _______________________________________________ > Aironet mailing list - Ai...@cs... > http://csl.cse.ucsc.edu/mailman/listinfo/aironet > > > |
From: Simon B. <si...@ba...> - 2001-11-30 17:13:04
|
You cannot get an 802.11 card into promiscuous mode - there is no such thing for 802.11. There is something called "monitor mode", but it is not the same as "promiscuous mode" on regular ethernet cards. You will not be able to communicate with other stations in monitor mode, but you will see all 802.11 frames on the frequency that the card is set to. You will be seeing 802.11 frames - not 802.3 frames. Simon ----- Original Message ----- From: "darren teo" <teo...@ya...> To: <ai...@en...> Sent: Thursday, November 29, 2001 10:29 PM Subject: [Aironet] aironet350 and prom mode > Dear All, > > I am running Red-Hat7.2 and have a Cisco 350 WLAN > card. > I think i am using the 2.4.7-10 kernel's drivers(i did > not change anything since installation 2 days ago - > but how can i check which PCMCIA and WLAN card driver > i am actually using?) > > I am trying to get my Aironet 350 card to go in > promiscuous mode by "echoing" "Mode: rfmon" into > /proc/drivers/aironet/eth0/Config. > > The echo command runs but i noticed that the Config > file constantly being re-written by some unknown > process. > > Ques: Can i get the card to work in Prom mode via this > method? if so...what am i doing or assuming wrong? > > Thanx and regards > Darren > > > __________________________________________________ > Do You Yahoo!? > Yahoo! GeoCities - quick and easy web site hosting, just $8.95/month. > http://geocities.yahoo.com/ps/info1 > _______________________________________________ > Aironet mailing list - Ai...@cs... > http://csl.cse.ucsc.edu/mailman/listinfo/aironet |