Must have.

This should be the default.

I have tried setting up DuckDNS with my router and unfortunately the substitution variables provided by the router don't work quite well. DuckDNS provides compatibility with DynDNS-like interfaces...

DNSSEC should be able to work together with either DoH or DoT

The current firmware version of the ER605 router only allows DNSSEC, DNS over TLS or DNS over HTTPS to be enabled. On a security point of view, it doesn't make sense to enable only one of these...

I just bought a ER605 and had configured it manually, then installed the SDN Controller on my local Linux server and tried to add the router to it. To my surprise, after the controller "paired" with...