root@soldier6:/zones/stuff# cat zones/manifests/salt1/salt1-provision.json
{
 "brand": "joyent",
 "image_uuid": "62aaa296-f143-11e7-bd81-9be1bda071f7",
 "alias": "salt1",
 "hostname": "salt1",
 "max_physical_memory": 512,
 "quota": 20,
 "resolvers": ["198.60.22.2", "2607:fa18::1"],
 "nics": [
  {
    "nic_tag": "admin",
    "ip": ["166.70.129.198", "addrconf"],
    "netmask": "255.255.255.224",
    "gateway": "166.70.129.193"
  }
 ]
}

root@soldier6:/zones/stuff# vmadm create -f zones/manifests/salt1/salt1-provision.json
Invalid value(s) for: nics.*.ip
root@soldier6:/zones/stuff#