So I add that as an include from another config. It's saved me from a few complete failures 😁. For this I was trying to keep it as a basic config for others to use as a good base and I would like to submit a PR, eventually, to include it in klipper's example configs.
The carrier can look at the packets TTL and assume if it's not what they expect then it must have originated from another device via the hotspot. Verizon did, or maybe still does, use this to throttle hotspot traffic but not data originating from the phone.
Bambu labs recently updated their printer firmware to support this feature, but it's nothing new. If you have a printer that is running or can run klipper, you can enable this. The final piece is a slicer that labels objects in the gcode so they can be excluded. I know both Prusa Slicer and Orca Slicer provide this functionally, there may be others.
So I add that as an include from another config. It's saved me from a few complete failures 😁. For this I was trying to keep it as a basic config for others to use as a good base and I would like to submit a PR, eventually, to include it in klipper's example configs.