Return-path: Received: from mail-wm0-f52.google.com ([74.125.82.52]:36122 "EHLO mail-wm0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757836AbcDEJ5E (ORCPT ); Tue, 5 Apr 2016 05:57:04 -0400 Received: by mail-wm0-f52.google.com with SMTP id 127so18541391wmu.1 for ; Tue, 05 Apr 2016 02:57:02 -0700 (PDT) MIME-Version: 1.0 Date: Tue, 5 Apr 2016 12:57:01 +0300 Message-ID: (sfid-20160405_115709_978820_18E22EA5) Subject: iwlwifi monitor mode: No data frame captured on 5 Ghz From: Gucea Doru To: linux-wireless@vger.kernel.org, emmanuel.grumbach@intel.com Cc: Doru Gucea Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: Hello, I am trying to capture packets that are exchanged between an AP and a smartphone on the 5Ghz frequency. For generating traffic, I upload UDP traffic from a laptop PC towards the smartphone using iperf. The problem is that I can see _only_ the control frames like RTS/CTS, Block ACK, while the data packets are not captured. I uploaded the Wireshark capture files at [1] (located inside the folders whose name starts with 5Ghz). If I use the 2.4 frequency, all the frames are captured. I also uploaded the Wireshark packet traces for 2.4Ghz at [1] (located inside the folders whose name starts with 2.4 Ghz). Is this a known bug or am I doing something wrong? Additional details: Wi-Fi card: iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless N 7260, REV=0x144 Firmware version: iwlwifi 0000:04:00.0: loaded firmware version 25.228.9.0 op_mode iwlmvm Traffic encryption: WPA & WPA2 Personal Setting up the card in wireless mode: ip link set dev wlan0 down iw wlan0 set type monitor ip link set dev wlan0 up iw wlan0 set freq 5240 [1] https://drive.google.com/open?id=0B5SBH08PU_Chek9rOHY0VkxFRUE Thank you, Doru