Almost every cheap consumer routers just do local-only IPv6 so they disallow IPv6 on the WAN, corporate deployments actually to this day disable IPv6 due to com

Almost every cheap consumer routers just do local-only IPv6 so they disallow IPv6 on the WAN, corporate deployments actually to this day disable IPv6 due to compatibility issues with legacy hardware and software. The problems are IOT, devices that need the internet to communicate that work on the premise that NAT exists, it will take a couple of years before every cheap chinese device have a firewall built-in. Expect the next Mirai.