Even if you're happy with the router supplied by your ISP, building your device is a cool way to see how everything connects and what the router and firewall are tasked with handling.

I used to have a Netgear router with my US-based ISP which supports IPv6, and never had any issues.

Getting to the question, our internet and network setup has our server (Server 2008 R2) setup as both the DHCP and DNS server while using a Watchguard Edge firewall for the NAT.

On Windows 11, 10, or a router, you can start Cloudflare's 1.1.1.1 DNS resolver service as the default DNS service for your computer and network, and in this guide, I'll teach you how.