For all practical purposes, without a USB dongle. no.
Hmm interesting, so what's the special sauce that apple made it possible over firewire and thunderbolt, but not under USB?
I think the original question was a bit unclear. Personally, I wouldn't consider directly connecting two computers to be "creating a network."
Correct, you can do IP over USB as long as you are hard connecting two devices together. For example, you would connect a phone to your Mac and use it as a IP tether to get to the Internet...
But if you wanted to plug in regular Ethernet cable to a Mac, that's a different story. I used a Ethernet-to-TB dongle that allowed me to plug in a Ethernet cable. In that case this no different than the various dongles out there that to USB-C to HDMI/DVI/SD or whatever..
Regards
Hmm interesting, so what's the special sauce that apple made it possible over firewire and thunderbolt, but not under USB?