> > 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).
Most likely the packets on A band have a VHT preamble and your SKU is 11N only. Another option is that the traffic uses LDPC encoding and this device doesn't support it. > > 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
