Sniffing connection data

[Aftab]

Hello,

My peripheral device is nRF52840, central is an Android device, Sniffer hardware is PCA10040 kit.

Using this guide https://infocenter.nordicsemi.com/pdf/nRF_Sniffer_BLE_UG_v3.0.pdf, I'm able to capture advertisement data. I can also select the device for which I need to capture the data. But as soon a connection is established between central and peripheral, the Wireshark shows no data at all. I'm attaching the Wireshark capture file if that helps. 

Physically I have placed the sniffer dev kit between my mobile phone and peripheral.

Thanks.

2474.2020-10-08_5-50.pcapng

[Sigurd]

Hi,

Aftab said:

the Wireshark shows no data at all. I'm attaching the Wireshark capture file if that helps. 

There is a lot of data in the sniffer log you attached. The connection happens at No. #4772:

[Aftab]

It's very strange b/c the same file on my Wireshark does not show packets beyond 32720. To be sure, I downloaded the above attached file and opened in Wireshark, same result, no sniffing information beyind 32720. See the attached image:

[Aftab]

v2.4.4. Do I need to take the sniffer again to see Info data, after Enable All option?

[Sigurd]

From https://infocenter.nordicsemi.com/topic/ug_sniffer_ble/UG/sniffer_ble/installing_sniffer.html, Wireshark v3.0.7 or later is recommended on Windows. So I recommend that you upgrade your Wireshark version.

[Aftab]

Ok, let me try this.

[Aftab]

Changing the Wireshark version solved the problem, thanks a lot.

[Sigurd]

Great! Happy to help

[Aeneas]

I have this exact problem, except my installation is recent, with v..Version 4.0.1 (v4.0.1-0-ge9f3970b1527)..

//52840 DK//PCA10056//central=apple-smartphone//

Works perfectly on Advertising packets, but once a CONNECT_IND comes in

from the smartphone, no more messages from this Source are displayed

(since this source programmed to stop Advertising on a Connect).

The smartphone does indicate that a series of messages are

being received from this source.

So the question is what in installation/troubleshooting affects

ability to display Data messages in Connect mode ?

(No encryption or privacy is enabled, at this point).

In the Wireshark Device options, I see 2:

All advertising devices  and  Follow IRK., preceding a list of devices and dBm observed.

[Sigurd]

Hi Aeneas, 

This case is ~2 years old. If you are having issues with the sniffer, please open a new case:
https://devzone.nordicsemi.com/support/add