firewall fields

{
	"c_state": nil,
	"chain": "FORWARD",
	"created_at": "2016-07-04T16:15:10.048+01:00",
	"ct_tag": "auto_isolate_traffic",
	"dest_ip": "local",
	"dest_port": nil,
	"layer7": nil,
	"layer7kernel": nil,
	"limit": nil,
	"log_level": nil,
	"network_id": "5707d2b7f4f67bd01f71fd05",
	"out_interface": nil,
	"position": 1,
	"protocol": "tcp",
	"rule_spec": "I",
	"source_interface": nil,
	"source_ip": "10.168.173.1/24",
	"source_port": nil,
	"string_patch": nil,
	"target": "DROP",
	"timestart": nil,
	"timestop": nil,
	"updated_at": "2016-07-04T16:15:10.048+01:00"
}