tcpdump mailing list archives
why libpcap cannot capture outbound 802.11 beacons?
From: Yifan Zhang <ivan39389 () hotmail com>
Date: Mon, 31 Oct 2011 15:27:33 -0400
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 - This is the tcpdump-workers list. Visit https://cod.sandelman.ca/ to unsubscribe.
Current thread:
- why libpcap cannot capture outbound 802.11 beacons? Yifan Zhang (Nov 27)
- Re: why libpcap cannot capture outbound 802.11 beacons? abhinav narain (Nov 29)
- Re: why libpcap cannot capture outbound 802.11 beacons? Max Filippov (Nov 30)
- Re: why libpcap cannot capture outbound 802.11 beacons? Guy Harris (Nov 30)