Does anyone know if a pair of Buffalo Linkstation Pro (LS-XH1.0TL) single-drive NASes can sync across the Internet? I would like to buy a pair and install one in my home and a second in my parents home about 40 miles away. Ideally they would rsync regularly. I have read multiple posts on this site about syncing nas to nas, but it seems like those examples are only applicable if the two NASes are on the same network? Both homes have high-speed Internet of course, and they're actually both using the same cable modem ISP.