Return-path: Received: from mms2.broadcom.com ([216.31.210.18]:3382 "EHLO mms2.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965010Ab3FTIdi (ORCPT ); Thu, 20 Jun 2013 04:33:38 -0400 Message-ID: <51C2BE54.20509@broadcom.com> (sfid-20130620_103351_920745_152AD8C3) Date: Thu, 20 Jun 2013 10:33:24 +0200 From: "Arend van Spriel" MIME-Version: 1.0 To: "Chris Adams" cc: =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= , "Larry Finger" , b43-dev@lists.infradead.org, linux-wireless Subject: Re: BCM4331 deauthenticates every five minutes References: <20130619160911.GB4784@cmadams.net> <51C1DDEB.3090701@lwfinger.net> <20130619164227.GC4784@cmadams.net> <20130619175850.GD4784@cmadams.net> <51C21B7C.2030005@broadcom.com> <20130619211108.GG4784@cmadams.net> In-Reply-To: <20130619211108.GG4784@cmadams.net> Content-Type: text/plain; charset=utf-8; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 06/19/2013 11:11 PM, Chris Adams wrote: > Once upon a time, Arend van Spriel said: >> Can you make a capture using a wireless sniffer (using your thinkpad maybe)? > > How would I go about doing that? I've done lots of network debugging > with tcpdump and such, but not much wireless stuff. > I use wireshark these days. If you install that you can use the steps below and select the wireless interface in wireshark to capture. I use wlan0 as interface name, but it may be different for you. 1. disable network-manager so it won't interfere. 2. bring the interface down $ sudo ifconfig wlan0 down 3. change interface type to monitor $ sudo iw dev wlan0 set type monitor 4. bring up the interface $ sudo ifconfig wlan0 up 5. start wireshark and select wlan0 $ gksudo wireshark It will complain that running wireshark as root is not secure. If you care about that, you should read [1]. Regards, Arend [1] http://wiki.wireshark.org/Security#Administrator.2Froot_account_not_required.21