6to4 in WAN connection
This is a difficult question. My IPv6 router supports 6to4 in WAN connection and therefore I can have IPv6 addresses assigned by SLAAC + Stateless DHCP in the LAN side. Will PCs in the LAN side associated with the router give IPv6 higher priority than IPv4 when accessing dual-stack websites. My past experience is that for end-point 6to4 address assigned automatically in Windows 7 PCs, the IPv6 connection has a lower priority. I will find out the answer as soon as possible.