Re: About 6to4
Yes, I have a public IPv4 address but have no prerogative for an IPv6 subscription (for I am not a business user who is given more freedom on IPv6 as IPv4 Firewall is mature).
Meanwhile, the router in use (Apple AirPort Extreme 802.11ac) which is a premium one is not PPPoE over IPv6 capable.
Lots of people rely on 6to4.