Yes, it works now! What I did was to disable network by unchecking "Enable Networking" in the network notification area in Ubuntu. It's easier than to kill processes manually. Thank you all for the help! - dlw On Wed, May 20, 2015 at 11:43 AM, Matt Chen <mattsled@xxxxxxxxx> wrote: > probably you need to disable your NetworkManager and wpa_supplicant. > Then switch/change your mode to monitor. Make sure the command "iw > [interface_name] info" shows you the type is monitor. > > 2015-05-20 1:41 GMT+08:00 Emmanuel Grumbach <egrumbach@xxxxxxxxx>: >> On Tue, May 19, 2015 at 7:44 PM, darklight wu <darklightwu@xxxxxxxxx> wrote: >>> On Mon, May 18, 2015 at 3:26 PM, Emmanuel Grumbach <egrumbach@xxxxxxxxx> wrote: >>>> On Mon, May 18, 2015 at 10:01 AM, darklight wu <darklightwu@xxxxxxxxx> wrote: >>>>> Hi, All: >>>>> >>>>> I configured the Wifi Monitor mode with Intel 7260 card under >>>>> Ubuntu14.04 and then used Wireshark to capture packets from air. But I >>>>> could only get management/control packets but no data packets. I tried >>>>> different channels and also with HT20 or HT40+/-. >>>>> >>>>> The commands I used were: >>>>> >>>>> iw dev wlan0 interface add mon0 type monitor >>>>> iw dev wlan0 del //I googled and was told I needed to delete the >>>>> wlan0 first. Or else I got device busy (-16) error >>>>> ifconfig mon0 up >>>>> iw dev mon0 set channel 1 >>>>> >>>>> I also tried to use other ways like "airmon-ng start wlan0". All the >>>>> observations were same, no data packets. It's weird! Anyone has a >>>>> clue? >>>>> >>>> >>>> This is weird. But I recommend to add power_scheme=1 as a module >>>> parameter to iwlmvm. Since iwlmvm is loaded automatically, you'll need >>>> to add that to /etc/modprobe.d/iwlwifi.conf. >>>> 14.04 ships 3.13 and I remember we had issues with monitor mode at >>>> that time. You may want to try a newer kernel. >>> >>> I tried again today with "power_scheme=1" and also booted with Ubuntu >>> 15.04. Both still failed to work in monitor mode. And with Ubuntu >>> 15.04, I event could not configure the nic to work on monitor mode. >>> The same commands at least can set the monitor mode under 14.04. >>> Meanwhile, I just want to clarify, the nic could capture data packets >>> to/from itself but could not capture others that were not belongs to >>> it. My co-worker tried on another machine with Ubuntu 14.04, he was >>> also failed. >>> >>> Any tricks here? >> >> You must not have any interface besides the monitor interface. I bet >> you still have the wpa_supplicant running and this is why you only >> have a virtual monitor interface that catches the packet from your >> managed interface only. >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-wireless" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
