dynamic_port_range

raw details (from release v2.2.3):

{
  "name": "dynamic_port_range",
  "properties": {
    "long": "dynamic-port-range",
    "value_name": "MIN_PORT-MAX_PORT",
    "takes_value": "true",
    "default_value": "&default_args.dynamic_port_range",
    "validator": "port_range_validator",
    "help": "Range to use for dynamically assigned ports"
  },
  "isDeprecated": false
}