I'm aware that the GUI isn't exactly in place for IPv6 stuff right now, but it's my understanding that it has radvd 1.6, which should be capable of handling an all IPv6 LAN with 6to4 connection to an IPv4 WAN. If anyone has the know-how to make a tutorial like this, I'm sure it would become popular given how much IPv6 is in the news this year. Maybe even an intro into differences between IPv6 and IPv4. DHCPv6 is not really for assigning addresses since that is handled by the stateless auto-configuration, the addresses have abbreviation rules, no more NAT (for a long, long time anyway).
I would also like a tutorial on this.
I have the ASUS N16-RT running Tomato Firmware v1.28.9054 MIPSR2-beta K26 USB Ext.
IPv6 has many advantages compared to IPv4.
I was not able to set this up on the latest official release; I could get the kernel modules loaded but it would not add the tunnel. The latest git builds have pretty easy ipv6 configuration in the GUI, so I would definitely suggest 'gitting' it!