{
"Dhcp6": {
    "interfaces-config": {
        "interfaces": [ "usb0" ]
    },
    "subnet6": [
        {
	    "interface": "usb0",
            "subnet": "2001:db8:0:10::/60",
            "pools": [ { "pool": "2001:db8:0:11::1/64" } ],
            "pd-pools": [
                {
                    "prefix": "2001:db8:0:18::",
                    "prefix-len": 61,
                    "delegated-len": 64
                }
            ]
        }
    ],
}

}