https://redmine.openinfosecfoundation.org/issues/8327?tab=properties
Feature #8327: detect: add eth.hdr keyword for inspecting ethernet header - Suricata - Open...
ethernet headerfeaturedetectaddhdr
https://tinkersphere.com/teensy-boards/3954-teensy-41.html
$44.88 - Teensy 4.1 with Ethernet and Header Pins - Tinkersphere
Use this Teensy 4.1 with your Teensy code to keep your projects small when you need high speed! 600 MHz, with an ARM Cortex-M7 chip and 10 / 100 Mbit ethernet....
teensyethernetheaderpins