On 29/07/2017 13:46, Randy Bush wrote: ... > getting problems with nat64 identified, diagnosed, and fixed (or worked > around, sigh) is in the ietf's and the public's interest. Sure. But dual stack operation is *not* the poor cousin. IMNSHO, ipv6-only-with-NAT64-with-DNS64 is the poor cousin. As a compromise, could we have: 1) *No* SSID called "ietf". 2) A secured SSID called "ietf-dual" for the dual stack service. 3) A secured SSID called "ietf-ipv6" for the ipv6+NAT64 service. 4) An insecure "ietf-legacy" that is a dual stack service. 5) The best you can manage for "ietf-hotel", preferably dual stack. Brian