On Tue, Sep 28, 2021 at 3:02 PM Randy Bush <randy@psg.com> wrote:
> Heh, NAT is not that evil after all. Do you expect that all the home
> people will get routable public IPs for all they toys inside house?

in ipv6 they can.  and it can have consequences, see

    NATting Else Matters: Evaluating IPv6 Access Control Policies in
    Residential Networks;
    Karl Olson, Jack Wampler, Fan Shen, and Nolen Scaife

    https://link.springer.com/content/pdf/10.1007%2F978-3-030-72582-2_22.pdf

the ietf did not give guidance to cpe vendors to protect toys inside
your LAN


guidance aside... 'Time To Market' (or "Minimum Viable Product - MVP!) is likely to impact all of our security 'requirements'. :(
I also thought 'homenet' (https://datatracker.ietf.org/wg/homenet) was supposed to have provided the 
guidance you seek here?