The Etherwave AUI and AAUI dongles don't require any software and seem to work on anything that has an AUI or AAUI port. The Printer adapter, which converts ethernet to localtalk, also requires no software and seems to work on any localtalk printer.
The "Mac" adapter, sometimes called PB adapter, converts localtalk to ethernet, and the driver is optional. You can use the driver with classic networking and get somewhere around double localtalk speed. You can also ignore the driver, and I think it will convert localtalk to ethernet on any Mac with localtalk.
Etherwave cards were made for Nubus and possibly the LC slot. They cannot be used without the driver, which requires classic networking. With some of these classic drivers, you can use ResEdit to pick out the DRVR resource the installer sticks into your System file, and paste it into a different System file, possibly an Open Transport-only system. I think I tried this once with a Farallon driver and it didn't work.