Actually IPV6 has been supported on many Realtek networking hardware for so long already.
That said, there is no reports (+ve/-ve) about the AIOS or any other Realtek 1185 box.
http://www.realtek.com.tw/products/prod ... ProdID=286 Let me inquire about this and get back to you (that said, even if it works currently then no manual assignment of IPv6 addresses is supported by the GUI).