See if your router supports DNS64 (DNS server maps IPv4 addresses in responses to IPv6 addresses under a chosen prefix) and NAT64 (firewall translates IPv6 LAN

See if your router supports DNS64 (DNS server maps IPv4 addresses in responses to IPv6 addresses under a chosen prefix) and NAT64 (firewall translates IPv6 LAN packets with addresses under that prefix to the original IPv4 packets, and back). I don't know about consumer routers, but it's relatively straightforward to do on pfSense / OPNsense. It doesn't work for protocols that embed IP addresses, like BitTorrent, since you'd need a protocol-aware proxy for that rather than just an IP firewall, but for something like HTTP there won't be any problem.