I saw this the other day, although haven’t had a chance to write about it.
EtherDFS just needs a packet driver on MS-DOS, and it implements it’s own re-director to communicate with a Linux file-server, using it’s own raw protocol.
It certainly looks cool, and looking at how it works, it should be possible to write other drivers to read/write other filesystems for MS-DOS. It’d be more interesting (to me anyways) if you can write an INT 14 re-director using a 32bit DOS extender to make things easier regarding filesystem ports.
When I get back home, I’ll have to test this on my retro machine, as the idea of just needing a packet driver + TSR sure sounds like a LOT less memory than the Microsoft re-director.