From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Gannon Date: Wed, 25 Mar 2015 10:26:04 -0400 Subject: [ath9k-devel] Packet Injection in Monitor Mode Sending Packets Twice In-Reply-To: References: <2811559.G0lnPVeIZP@scooby> Message-ID: <8622163.Jly0hxWGXe@scooby> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org On Wednesday, March 25, 2015 10:49:43 AM Thomas V wrote: > There is a possibility that the 1st frame is retried. Can you check for the > "retry bit" in the sniffer capture. The retry flag in the IEEE 802.11 section is set to zero for both the first and second packet. Here is a text version of Wireshark's exported packet dissection for the second packet: IEEE 802.11 Data, Flags: .......T Type/Subtype: Data (0x0020) Frame Control Field: 0x0801 .... ..00 = Version: 0 .... 10.. = Type: Data frame (2) 0000 .... = Subtype: 0 Flags: 0x01 .... ..01 = DS status: Frame from STA to DS via an AP (To DS: 1 >From DS: 0) (0x01) .... .0.. = More Fragments: This is the last fragment .... 0... = Retry: Frame is not being retransmitted ...0 .... = PWR MGT: STA will stay up ..0. .... = More Data: No data buffered .0.. .... = Protected flag: Data is not protected 0... .... = Order flag: Not strictly ordered .000 0000 0000 0000 = Duration: 0 microseconds Receiver address: Broadcast (ff:ff:ff:ff:ff:ff) BSS Id: Broadcast (ff:ff:ff:ff:ff:ff) Transmitter address: 13:22:33:44:55:66 (13:22:33:44:55:66) Source address: 13:22:33:44:55:66 (13:22:33:44:55:66) Destination address: 13:22:33:44:55:66 (13:22:33:44:55:66) Fragment number: 0 Sequence number: 2145 Thanks for your help! Regards, Mark Gannon -- You have to accept whatever comes, and the only important thing is that you meet it with the best you have to give. ? Eleanor Roosevelt -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 181 bytes Desc: This is a digitally signed message part. Url : http://lists.ath9k.org/pipermail/ath9k-devel/attachments/20150325/3cd0faba/attachment.pgp