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I've recently noticed that my Wireshark (2.6.10) installed on Mint 19.3 would only propose me to capture Bluetooth traffic with the following Link-layer Header "Bluetooth HCI UART transport layer plus pseudo-header". Is it possible for me to change this ? I'd like to have the "Bluetooth Linux Monitor" Link Layer Header proposed instead.

For now, the way to change it is to switch to a Linux that's not based on Debian; the maintainers of the libpcap Debian package appear to have deliberately disabled the ability to sniff using the Bluetooth monitor mechanism in libpcap.

I don't know why this is, but I've reported it as a Debian bug. Hopefully, they'll fix that, and it'll propagate down to Ubuntu, Mint, etc..

I've recently noticed that my Wireshark (2.6.10) installed on Mint 19.3 would only propose me to capture Bluetooth traffic with the following Link-layer Header "Bluetooth HCI UART transport layer plus pseudo-header". pseudo-header".

Is it possible for me to change this ? I'd like to have the "Bluetooth Linux Monitor" Link Layer Header proposed instead.

For now, the way to change it is to switch to a Linux that's not based on Debian; the maintainers of the libpcap Debian package appear to have deliberately disabled the ability to sniff using the Bluetooth monitor mechanism in libpcap.

I don't know why this is, but I've reported it as a Debian bug. Hopefully, they'll fix that, and it'll propagate down to Ubuntu, Mint, etc..