Those of you lucky to have a native IPv6 connection from your ISP, could you please share what network topology your ISP offers. E.g.
1. One IPv6 address 2. A /64 on the internal interface of ISP-owned CPE 3. A /64 for the link and a /56 for your devices (like HE does on its tunnels) 4. Unnumbered for the link and a /56 for your devices 5. ??? (other variants)
I have native IPv6 only on my GSM mobile phone (MTS), and it's Case 1, from the MTS-Mobile-ipv6-Siberia netblock.