TechnitiumSoftware-DnsServer/Apps/Dns64App/dnsApp.config

{
  "enableDns64": true,
  "networkGroupMap": {
    "::/0": "everyone"
  },
  "groups": [
    {
      "name": "everyone",
      "enableDns64": true,
      "dns64PrefixMap": {
        "0.0.0.0/0": "64:ff9b::/96",
        "10.0.0.0/8": null,
        "172.16.0.0/12": null,
        "192.168.0.0/16": null
      },
      "excludedIpv6": [
        "::ffff:0:0/96"
      ]
    }
  ]
}