It's unfortunate, but expected that ISPs want you to continue paying for static address space, regardless of the scarcity of said space. So if you want to take

It's unfortunate, but expected that ISPs want you to continue paying for static address space, regardless of the scarcity of said space. So if you want to take advantage of the global IPv6 addressing scheme and avoid NAT, you have to script your config to tear down your routes and rebuild them with the new prefix when it changes. I do this with CenturyLink and its terrible 6rd implementation, but I would not expect to have to do this with DHCPv6 as a lease should not expire within milliseconds.