I have a couple laptops laying around and thinking about using one for a pfsense box. I was surprised that I have nothing laying around that’s powerful enough to run pfsense, but I do have these two laptops. One is newer than the other, but I’d doesn’t have an ethernet jack. The other does, but it’s 10/100, though both have USB 3.0. Thinking of either using my router as a managed switch or a couple USB 3.0 to gigabit ethernet adapters.
I’ve looked all over and not found much recently of talk about this kind of setup. Most of what I saw was about usb being unreliable, but it was all several years ago. Has anyone tried this that can speak to reliability, resource usage, heat, etc? I’ve seen some mentions that were recent that said they wouldn’t recommend it, but I can’t find anything about any actual testing or reliability results.