Re: why libpcap cannot capture outbound 802.11 beacons?

[abhinav narain <abhinavnarain10 () gmail com>]

Could you explain what do you mean by outbound beacons ?
I have been able to capture beacons using libpcap.
Am I missing on something ?

Abhinav

On Mon, Oct 31, 2011 at 3:27 PM, Yifan Zhang <ivan39389 () hotmail com> wrote:

> Hello all,
>
> I am writing my own program, which will be running on a 802.11 AP, to
> capture all the outgoing beacons on the AP. But I just noticed I cannot do
> it with the current libpcap: the program couldn't capture any outbound
> beacons. I've also tried Wireshark which gave the same result.
>
> My questions are:
> 1. Can anyone shed some lights on the causes of what I saw?
> 2. Is there any user space method that I can capture the outbound beacons
> of a 802.11 AP on that specific AP (rather than capturing on other PCs)? It
> is better for me if I can do this without hacking into the wireless driver.
>
> Thanks, folks.
>
> -ivan
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