&gt; no more automatic NAT firewalling<p>NAT != firewall<p>IPv6 doesn&#x27;t take away your stateful firewall, and NAT isn&#x27;t providing <i>ANY</i> security. Your private IP addresses are betrayed all the time by your browser (and TCP option headers). NAT has done an incredible amount of damage to the internet; it prevented the development of true peer-to-peer software and forced everything to centralize.<p>The solution - even for IoT in the few places IoT isn&#x27;t a surveillance scam - is to <i>remove NAT</i> by using IPv6.