This may have an obvious solution, however, it's not obvious to me! I would like to share files on my LAN with my next door neighbour, but not share my internet connection, as they have their own. It's likely that I'd only want to share one folder, but I'd also like the ability to share as many folders as I like within my own LAN.

I've done various searches, but have found nothing that addresses this problem. I would think it's 'doable' I just don't know how.