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Cannot capture ATT protocol with BLE sniffer
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Cannot capture ATT protocol with BLE sniffer

by aheiphetz on Wed Jul 08, 2020 1:43 pm

I am working with Adafruit BLE sniffer and wireshark. The only communication that I can see is the one happening on the link layer. I cannot see any upper level communication, for example ATT protocol. Could you give me an idea of what could be the problem.

aheiphetz
 
Posts: 1
Joined: Wed Jul 08, 2020 1:40 pm

Re: Cannot capture ATT protocol with BLE sniffer

by pickledpineapplepie on Wed Sep 16, 2020 2:18 pm

I have this same question. I recently purchased a BLE Sniffer V2. I have it working in Wireshark. I see a stream of Advertisement packets. I select the device I am interested in in the nRF Sniffer toolbar. Then I pair the device to my phone. At that point I see a CONNECT_REQ. It seems like I should then start to see Empty PDU packets but I don't. I change settings using the phone app and I see no relevant packets in Wireshark.

Is there possibly a limitation of the sniffer that I am hitting? I don't know what bluetooth version my device is using. Is it possible that BLE 5 packets are incompatible with the sniffer out of the box?

pickledpineapplepie
 
Posts: 1
Joined: Sun Apr 29, 2012 1:25 am

Please be positive and constructive with your questions and comments.