Academy's Bluetooth LE Fundamentals, Lesson 6: Problems with enabling the nRF Sniffer Capture Tool in Wireshark

RE: Academy's Bluetooth LE Fundamentals, Lesson 6: Problems with enabling the nRF Sniffer Capture Tool in Wireshark

Jacek Majda — Wed, 26 Apr 2023 14:26:17 GMT

Hi,

I tried one more time to capture packets when using the nRF USB port, and this time it worked 100%.

So the problem has been resolved.

RE: Academy's Bluetooth LE Fundamentals, Lesson 6: Problems with enabling the nRF Sniffer Capture Tool in Wireshark

Einar Thorsrud — Wed, 26 Apr 2023 08:25:42 GMT

Hi,

You need to use the nRF USB port on the bottom part of the DK as shown here:

Using the USB port on the left side (with the debugger as a USB-USB bridge) will not work with the lastest DK revisions.

The question is why you don't capture any packets when using the nRF USB port, and fort that I do not have any immediate suggestions. There are some suggestions here which are worth considering, though most are only relevant when using UART (via the onboard debugger) and not USB. By the way, which version of Python are you using?

RE: Academy's Bluetooth LE Fundamentals, Lesson 6: Problems with enabling the nRF Sniffer Capture Tool in Wireshark

Jacek Majda — Tue, 25 Apr 2023 17:18:10 GMT

Hi,

I am using my nRF52840 DK Version 3.0.0 as the nRF DK that is running the nRF Sniffer Firmware that I flashed into it.

I am now able to see the "nRF Sniffer for Bluetooth LE Com13" displayed as one of the interfaces on the Wireshark Capture screen.

However, when I try to run the nRF Sniffer by:

1. Turning my DK running the nRF Sniffer firmware ON and placing it between two devices that are communicating over Bluetooth LE.

2. In Wireshark, under Capture, double-clicking on the hardware interface: "nRF Sniffer for Bluetooth LE Com port"

I get a message with several Wireshark-Interface Options for nRF Sniffer for Bluetooth NE Com 13, as can be seen on the attached Screenshot_1-25-April-2023.

But whichever option I choose, I am getting the message: "No packets captured", as can be seen on the attached Screenshot_2-25-April-2023.

This is all happening while I use the nRF USB on my nRF 52840DK Version 3.0.0.

When instead of the nRF USB, I try to use the standard USB on my nRF52840 DK Version 3.0.0, I get the following messages:

1. nRF Sniffer for Bluetooth LE could not find interface: COM13

2. Error by extcap pipe: FIFO does NOT exist

as can be seen on the attached Screenshot_3-25-April-2023.

How can this problem be resolved?

Regards,

devzone.nordicsemi.com/.../Screenshot_5F00_1_2D00_25_2D00_April_2D00_2023.docx

devzone.nordicsemi.com/.../Screenshot_5F00_2_2D00_25_2D00_April_2D00_2023.docx devzone.nordicsemi.com/.../Screenshot_5F00_3_2D00_25_2D00_April_2D00_2023.docx

RE: Academy's Bluetooth LE Fundamentals, Lesson 6: Problems with enabling the nRF Sniffer Capture Tool in Wireshark

Einar Thorsrud — Tue, 25 Apr 2023 07:24:13 GMT

Hi,

I do not see the list of interfaces in the screenshot (as a menu covers it), but the rest of the information here all seems good. Which nRF DK/Dongle have you connected to the computer and are using as the sniffer (both type and version)? How have you connected it to the computer? And have you flashed it with the appropriate sniffer firmware (from the same zip as the other sniffer components)?