Re: [tcpdump-workers] radiotap on linux

2006-06-14 Thread Matthew Belcher
On Wednesday 14 June 2006 13:38, David Young wrote: > > I don't know how it works in Linux. In BSD, the taps are set up like > this: > Thanks again. I solved my problem. I needed to do echo '803' > /proc/sys/net/ath0/dev_type on the device to switch it to radiotap header mode and also set up t

Re: [tcpdump-workers] radiotap on linux

2006-06-14 Thread Matthew Belcher
On Wednesday 14 June 2006 12:38, David Young wrote: > Are you sure this is a radiotap capture? Where it says "link-type > IEEE802_11," it should say "link-type IEEE802_11_RADIO". Perhaps the > driver is really creating a radiotap capture, but it uses the wrong DLT? Thanks Dave. Is there somethi

Re: [tcpdump-workers] radiotap on linux

2006-06-14 Thread Matthew Belcher
> Are you running it with -s0 (or some larger-than-default capture size)? > A full RT header can be bigger than the 32 or 64 or whatever the default > # of bytes is for tcpdump to process. Thanks for your suggestion. I tried it with -s0 to see if that would help. Here's what I get now: (none):~

[tcpdump-workers] radiotap on linux

2006-06-13 Thread Matthew Belcher
Hi all, I'm working on setting up radiotap header capture on Linux. I'm running the latest kernel (2.6.16.18) with the radiotap extensions compiled in. I'm using the madwifi-ng driver with an Atheros card. I pulled the latest tcpdump from CVS. It looks like tcpdump is receiving the radiotap packe