Re: [tcpdump-workers] radio header 802.11

2005-11-03 Thread Mike Kershaw
> >Many drivers/firmware don't appear to intelligently understand promisc > >mode, so you're likely to get the worst-case most of the time. > > What are the drivers and cards that have problems with promiscuous mode? If I recall, centrino definitely, I'll have to go through my logs and see what o

Re: [tcpdump-workers] radio header 802.11

2005-11-03 Thread David Young
On Thu, Nov 03, 2005 at 12:30:51AM -0800, Guy Harris wrote: > Mike Kershaw wrote: > >Radio level data is only available in monitor mode. > > On Linux, at least. From a quick look at the wi driver and 802.11 > framework in NetBSD, you should be able to get radio data and 802.11 > headers in non-

Re: [tcpdump-workers] radio header 802.11

2005-11-03 Thread Guy Harris
Mike Kershaw wrote: Radio level data is only available in monitor mode. On Linux, at least. From a quick look at the wi driver and 802.11 framework in NetBSD, you should be able to get radio data and 802.11 headers in non-promiscuous, promiscuous, and monitor mode; the 802.11 headers should

Re: [tcpdump-workers] radio header 802.11

2005-11-02 Thread Guy Harris
On Nov 2, 2005, at 4:16 PM, Luis Del Pino wrote: Can i capture radio header 802.11 with promicuouos mode or only monitor mode? I would like to get signal strength, noise strength, etc. Could i capture this information with libpcap and promiscuous mode? Not unless the driver supports that.

Re: [tcpdump-workers] radio header 802.11

2005-11-02 Thread Mike Kershaw
Radio level data is only available in monitor mode. Sniffing an 80211 card in promisc mode has undefined results. At best it will act like sniffing a shared media network, you'll get 802.3 format ethernet frames of the data frames on the network. At worst, it'll be like sniffing a card not in pr

[tcpdump-workers] radio header 802.11

2005-11-02 Thread Luis Del Pino
Can i capture radio header 802.11 with promicuouos mode or only monitor mode? I would like to get signal strength, noise strength, etc. Could i capture this information with libpcap and promiscuous mode? - This is the tcpdump-workers list. Visit https://lists.sandelman.ca/ to unsubscribe.