diff --git a/README.rst b/README.rst
index 80524bc..11f3629 100644
--- a/README.rst
+++ b/README.rst
@@ -4,8 +4,6 @@ gopsutil: psutil for golang
 This is a port of psutil(http://pythonhosted.org/psutil/). This
 challenges porting all psutil functions on some architectures.
 
-
-
 Available archtectures
 ------------------------------------
 
@@ -15,6 +13,10 @@ Available archtectures
 
 (I do not have a darwin machine)
 
+
+All works are implemented without cgo by porting c struct to golang struct.
+
+
 usage
 ---------
 
diff --git a/net.go b/net.go
new file mode 100644
index 0000000..5f6ab97
--- /dev/null
+++ b/net.go
@@ -0,0 +1,27 @@
+package gopsutil
+
+type Net_io_countersStat struct {
+	Bytes_sent   uint64 `json:"bytes_sent""`  // number of bytes sent
+	Bytes_recv   uint64 `json:"bytes_recv"`   // number of bytes received
+	Packets_sent uint64 `json:"packets_sent"` // number of packets sent
+	Packets_recv uint64 `json:"packets_recv"` // number of packets received
+	Errin        uint64 `json:"errin"`        // total number of errors while receiving
+	Errout       uint64 `json:"errout"`       // total number of errors while sending
+	Dropin       uint64 `json:"dropin"`       // total number of incoming packets which were dropped
+	Dropout      uint64 `json:"dropout"`      // total number of outgoing packets which were dropped (always 0 on OSX and BSD)
+}
+
+type Addr struct {
+	Ip   string `json:"ip""`
+	Port uint32 `json:"port""`
+}
+
+type Net_connectionStat struct {
+	Fd     uint32 `json:"fd""`
+	Family uint32 `json:"family""`
+	Type   uint32 `json:"type""`
+	Laddr  Addr `json:"laddr""`
+	Raddr  Addr `json:"raddr""`
+	Status string `json:"status""`
+	Pid    int32 `json:"pid""`
+}
diff --git a/process.go b/process.go
index 563ce28..2cdf7ac 100644
--- a/process.go
+++ b/process.go
@@ -32,19 +32,10 @@ type Process struct {
 	Memory_maps    []Memory_mapsStat
 	//	Children       []Process // FIXME: recursive
 	Open_files  []Open_filesStat
-	Connections []ConnectionStat
+	Connections []Net_connectionStat
 	Is_running  bool
 }
 
-type ConnectionStat struct {
-	Fd     uint32
-	Family uint32
-	Type   uint32
-	Laddr  string // FIXME
-	Raddr  string // FIXME
-	Status string
-}
-
 type Open_filesStat struct {
 	Path string
 	Fd   uint32