IPv6 support or alternatives

[Arkcia]

It was late of me to discover after purchase that all of the four "Personal / Home NAS" products seem to only support IPv4, according to their specifications. As far as I have experimented, F2-210 can acquire a "link-scope" IPv6 address, but not a "global" one, which should be the reason for its failure to ping or access external IPv6 addresses. So I'm wondering whether some solution to IPv6 is possible, for my main demand is IPv6 transfer. My network environment supports IPv6 and my other devices work fine.

Thanks in advance.