Whoo, yea, that's way beyond me. Might want to try the dd-WRT forums for that. I might be able to help with the IPv6 settings in general if I can find a emulator. All I could find was stuff for WRT54G and before. I can show you screenshots of my settings on a Asus RT-N66U if that helps?
How to configure smart DNS proxy on a DD-WRT router Oct 04, 2017 How to configure a DD-WRT router - Domains - Namecheap.com How to configure a DD-WRT router. If you are using a router with DD-WRT firmware, you can make use of the built-in DDNS option to have A records for your domain automatically updated. DD-WRT About. DD-WRT is a Linux based alternative OpenSource firmware suitable for a great variety of WLAN routers and embedded systems. The main emphasis lies on providing the easiest possible handling while at the same time supporting a great number of functionalities within the framework of the respective hardware platform used. DD-WRT VPN Setup Guide 2020
Recommended DD-WRT settings - The Silicon Underground
Using OpenDNS with DD-WRT installed on your WNR3500L router is an easy way to control which websites that can be accessed on all Internet-connected devices in your home, from laptop and desktop computers to gaming consoles and mobile phones. OpenDNS is a parental controls service that empowers you to manage Web access across every device that accesses your home network,
So far I've learned of 3 ways to configure the DD-WRT, so that it will perform DNS for your local network. I don't claim to know which way is preferred by the developer(s) of the DD-WRT. Warning : Whatever method you use, you might not "see" the expected results on your computer until you reboot the computer or restart the network interfaces .
DNS leak due to increased number of DNS servers - DD-WRT a reboot of the router is required for the DNS Settings to become effective (at least during my tests). for dd-wrt dnsmasq in default config it is necessary to create the resolv.dnsmasq with upstream server configured. If a custom dns config is required, default settings can be ignored - …