why is ipv4-only GUI access "really bad news"
OK this means on Kabel BW or Unitymedia ISP in Germany (IPV6 + IPV4 DS-light) this router is not accessible from WAN.
This are really bad news and a limitation since IPV6 will be the future.
Am having no trouble at all reaching ipV6 websites from the _50 firmware, on an AC68u router with Windows 7, 8.1 and 10, Android and iPad clients. As a trivial example, when I ping google.com, the response is an ipV6 address. And the
http://test-ipv6.com/ website gives me a perfect 10/10 score.
The only thing that I cannot do, is reach the Asus router graphical user interface from a client that ONLY supports ipV6 protocol. Of course I have no such client devices, all my computers support ipV4 and ipV6, so of course all my devices can reach the Asus router user interface.
(I tested the ability to reach the router GUI via ipV6-only by temporarily disabling the ipV4 protocol stack in a Windows 10 machine)
Could you please explain to me what device ONLY supports ipV6, and that must, in an important way, reach the Asus graphical user interface? It can't be a Windows or Mac machine, or an Android or iOS computer. My guess is that it will be many years before client devices exist that support ipV6 only, and also need to reach an Asus router config screen. That is the same number of years that Asus will have to implement an ipV6-only-reachable GUI, at their convenience.
If I wanted to share files on the web in a serious way, I would pay $70 U.S. dollars for a low-end NAS
http://www.ebay.com/itm/like/291356092835?lpid=82&chn=ps with tons of IPv6 features and serious file-sharing security that would work faster and better than the Asus router USB ports.