{ "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" ] } ] }