diff --git a/cmd/verysimple/gui.go b/cmd/verysimple/gui.go
index c72f979..911847d 100644
--- a/cmd/verysimple/gui.go
+++ b/cmd/verysimple/gui.go
@@ -11,10 +11,15 @@ import (
 	"go.uber.org/zap"
 )
 
+var testFunc func()
+
 func init() {
 	gui_mode = true
 	runGui = func() {
 		ui.Main(setupUI)
+		testFunc = func() {
+
+		}
 	}
 }
 
@@ -41,6 +46,9 @@ func makeBasicControlsPage() ui.Control {
 		toggleCheckbox.SetChecked(defaultMachine.IsRunning())
 
 		defaultMachine.AddToggleCallback(func(i int) {
+			if mainwin == nil {
+				return
+			}
 			ok := i == 1
 			toggleCheckbox.SetChecked(ok) //SetChecked不会触发OnToggled
 			if ok {
@@ -67,6 +75,7 @@ func makeBasicControlsPage() ui.Control {
 		startBtn.OnClicked(func(b *ui.Button) {
 			defaultMachine.Start()
 		})
+
 	}
 
 	vbox.Append(ui.NewLabel("This is a label. Right now, labels can only span one line."), false)
@@ -92,56 +101,76 @@ func makeBasicControlsPage() ui.Control {
 	return vbox
 }
 
-func makeNumbersPage() ui.Control {
-	hbox := ui.NewHorizontalBox()
-	hbox.SetPadded(true)
-
+func makeConfPage() ui.Control {
+	result := ui.NewHorizontalBox()
 	group := ui.NewGroup("Numbers")
+	group2 := ui.NewGroup("Lists")
+
+	result.Append(group, true)
+	result.Append(group2, true)
+
+	result.SetPadded(true)
 	group.SetMargined(true)
-	hbox.Append(group, true)
+	group2.SetMargined(true)
+
+	{
+		vbox := ui.NewVerticalBox()
+		vbox.SetPadded(true)
+		group.SetChild(vbox)
+
+		spinbox := ui.NewSpinbox(0, 100)
+		slider := ui.NewSlider(0, 100)
+		pbar := ui.NewProgressBar()
+		spinbox.OnChanged(func(*ui.Spinbox) {
+			slider.SetValue(spinbox.Value())
+			pbar.SetValue(spinbox.Value())
+		})
+		slider.OnChanged(func(*ui.Slider) {
+			spinbox.SetValue(slider.Value())
+			pbar.SetValue(slider.Value())
+		})
+		vbox.Append(spinbox, false)
+		vbox.Append(slider, false)
+		vbox.Append(pbar, false)
+
+		ip := ui.NewProgressBar()
+		ip.SetValue(-1)
+		vbox.Append(ip, false)
+	}
 
 	vbox := ui.NewVerticalBox()
+	group2.SetChild(vbox)
+
 	vbox.SetPadded(true)
-	group.SetChild(vbox)
 
-	spinbox := ui.NewSpinbox(0, 100)
-	slider := ui.NewSlider(0, 100)
-	pbar := ui.NewProgressBar()
-	spinbox.OnChanged(func(*ui.Spinbox) {
-		slider.SetValue(spinbox.Value())
-		pbar.SetValue(spinbox.Value())
-	})
-	slider.OnChanged(func(*ui.Slider) {
-		spinbox.SetValue(slider.Value())
-		pbar.SetValue(slider.Value())
-	})
-	vbox.Append(spinbox, false)
-	vbox.Append(slider, false)
-	vbox.Append(pbar, false)
+	hbox2 := ui.NewHorizontalBox()
+	vbox.Append(hbox2, false)
 
-	ip := ui.NewProgressBar()
-	ip.SetValue(-1)
-	vbox.Append(ip, false)
-
-	group = ui.NewGroup("Lists")
-	group.SetMargined(true)
-	hbox.Append(group, true)
-
-	vbox = ui.NewVerticalBox()
-	vbox.SetPadded(true)
-	group.SetChild(vbox)
+	hbox2.Append(ui.NewLabel("Listen"), false)
 
 	cbox := ui.NewCombobox()
-	cbox.Append("Combobox Item 1")
-	cbox.Append("Combobox Item 2")
-	cbox.Append("Combobox Item 3")
-	vbox.Append(cbox, false)
+
+	hbox2.Append(cbox, true)
+
+	// cbox.Append("Combobox Item 1")
+	// cbox.Append("Combobox Item 2")
+	// cbox.Append("Combobox Item 3")
+
+	hbox2 = ui.NewHorizontalBox()
+	vbox.Append(hbox2, false)
+
+	hbox2.Append(ui.NewLabel("Dial"), false)
+
+	cbox = ui.NewCombobox()
+
+	hbox2.Append(cbox, true)
 
 	ecbox := ui.NewEditableCombobox()
+	vbox.Append(ecbox, false)
+
 	ecbox.Append("Editable Item 1")
 	ecbox.Append("Editable Item 2")
 	ecbox.Append("Editable Item 3")
-	vbox.Append(ecbox, false)
 
 	rb := ui.NewRadioButtons()
 	rb.Append("Radio Button 1")
@@ -149,7 +178,7 @@ func makeNumbersPage() ui.Control {
 	rb.Append("Radio Button 3")
 	vbox.Append(rb, false)
 
-	return hbox
+	return result
 }
 
 func makeDataChoosersPage() ui.Control {
@@ -265,8 +294,12 @@ func setupUI() {
 		filesM.AppendItem("Open github").OnClicked(openUrlFunc(weblink))
 		filesM.AppendItem("Check github releases").OnClicked(openUrlFunc(weblink + "releases"))
 
-		//var y = ui.NewMenu("Menu2")
-		//y.AppendItem("verysimple")
+		var y = ui.NewMenu("Debug")
+		y.AppendItem("test").OnClicked(func(mi *ui.MenuItem, w *ui.Window) {
+			if testFunc != nil {
+				testFunc()
+			}
+		})
 
 	}
 	mainwin = ui.NewWindow("verysimple", 640, 480, true) //must create after menu; or it will panic
@@ -274,10 +307,11 @@ func setupUI() {
 	{
 		mainwin.OnClosing(func(*ui.Window) bool {
 			ui.Quit()
+			mainwin = nil
 			return true
 		})
 		ui.OnShouldQuit(func() bool {
-			mainwin.Destroy()
+			mainwin = nil
 			return true
 		})
 	}
@@ -286,14 +320,13 @@ func setupUI() {
 	mainwin.SetChild(tab)
 	mainwin.SetMargined(true)
 
-	tab.Append("Basic Controls", makeBasicControlsPage())
-	tab.Append("Numbers and Lists", makeNumbersPage())
+	tab.Append("基础控制", makeBasicControlsPage())
+	tab.Append("配置控制", makeConfPage())
 	tab.Append("Data Choosers", makeDataChoosersPage())
 
 	for i := 0; i < tab.NumPages(); i++ {
 		tab.SetMargined(i, true)
 	}
-
 	mainwin.Show()
 
 }
diff --git a/cmd/verysimple/main.go b/cmd/verysimple/main.go
index 37b08a2..5d53e90 100644
--- a/cmd/verysimple/main.go
+++ b/cmd/verysimple/main.go
@@ -340,6 +340,7 @@ func mainFunc() (result int) {
 		if runGui != nil {
 			runGui()
 			gui_mode = false
+			utils.Info("gui mode exited")
 		}
 	}
 
diff --git a/go.mod b/go.mod
index 8455e1b..fb4b988 100644
--- a/go.mod
+++ b/go.mod
@@ -7,6 +7,7 @@ require (
 	github.com/asaskevich/govalidator v0.0.0-20210307081110-f21760c49a8d
 	github.com/biter777/countries v1.5.6
 	github.com/e1732a364fed/ui v0.0.1-alpha.5
+	github.com/eycorsican/go-tun2socks v1.16.11
 	github.com/gobwas/ws v1.1.0
 	github.com/lucas-clemente/quic-go v0.0.0-00010101000000-000000000000
 	github.com/manifoldco/promptui v0.9.0
@@ -37,6 +38,7 @@ require (
 	github.com/marten-seemann/qtls-go1-19 v0.1.1 // indirect
 	github.com/onsi/ginkgo/v2 v2.2.0 // indirect
 	github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3 // indirect
+	github.com/songgao/water v0.0.0-20190725173103-fd331bda3f4b // indirect
 )
 
 require (
diff --git a/go.sum b/go.sum
index c18a90b..66da718 100644
--- a/go.sum
+++ b/go.sum
@@ -21,6 +21,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/e1732a364fed/ui v0.0.1-alpha.5 h1:4SR/7DvZ65ZTK7zO7ITdus2oI0XtjCA0uAcOQdifyaw=
 github.com/e1732a364fed/ui v0.0.1-alpha.5/go.mod h1:uK9ryjwA0+3KdICbeXm5IjhKZ+1ZooMVDdTuLaQHpwM=
+github.com/eycorsican/go-tun2socks v1.16.11 h1:+hJDNgisrYaGEqoSxhdikMgMJ4Ilfwm/IZDrWRrbaH8=
+github.com/eycorsican/go-tun2socks v1.16.11/go.mod h1:wgB2BFT8ZaPKyKOQ/5dljMG/YIow+AIXyq4KBwJ5sGQ=
 github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0 h1:p104kn46Q8WdvHunIJ9dAyjPVtrBPhSr3KT2yUst43I=
 github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0/go.mod h1:fyg7847qk6SyHyPtNmDHnmrv/HOrqktSC+C9fM+CJOE=
 github.com/gobwas/httphead v0.1.0 h1:exrUm0f4YX0L7EBwZHuCF4GDp8aJfVeBrlLQrs6NqWU=
@@ -73,6 +75,8 @@ github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3 h1:f/FNXud6gA3MNr
 github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3/go.mod h1:HgjTstvQsPGkxUsCd2KWxErBblirPizecHcpD3ffK+s=
 github.com/shadowsocks/go-shadowsocks2 v0.1.5 h1:PDSQv9y2S85Fl7VBeOMF9StzeXZyK1HakRm86CUbr28=
 github.com/shadowsocks/go-shadowsocks2 v0.1.5/go.mod h1:AGGpIoek4HRno4xzyFiAtLHkOpcoznZEkAccaI/rplM=
+github.com/songgao/water v0.0.0-20190725173103-fd331bda3f4b h1:+y4hCMc/WKsDbAPsOQZgBSaSZ26uh2afyaWeVg/3s/c=
+github.com/songgao/water v0.0.0-20190725173103-fd331bda3f4b/go.mod h1:P5HUIBuIWKbyjl083/loAegFkfbFNx5i2qEP4CNbm7E=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
@@ -109,6 +113,7 @@ golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20191021144547-ec77196f6094/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
 golang.org/x/net v0.0.0-20210726213435-c6fcb2dbf985/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
diff --git a/machine/callback.go b/machine/callback.go
index 9b3d1e0..42f854f 100644
--- a/machine/callback.go
+++ b/machine/callback.go
@@ -1,7 +1,9 @@
 package machine
 
 type callbacks struct {
-	toggle []func(int)
+	toggle []func(int) //开关代理
+
+	updated []func() //运行中的配置发生了变更
 }
 
 func (m *M) AddToggleCallback(f func(int)) {
@@ -14,3 +16,14 @@ func (m *M) callToggleFallback(e int) {
 		}
 	}
 }
+
+func (m *M) AddUpdatedCallback(f func()) {
+	m.updated = append(m.updated, f)
+}
+func (m *M) callUpdatedFallback() {
+	if len(m.updated) > 0 {
+		for _, f := range m.updated {
+			f()
+		}
+	}
+}
diff --git a/main.go b/main.go
index 37aa5f0..c8f4e33 100644
--- a/main.go
+++ b/main.go
@@ -77,11 +77,11 @@ func ListenSer(inServer proxy.Server, defaultOutClient proxy.Client, env *proxy.
 	var is, tcp, udp bool
 	//tproxy 和 shadowsocks 都用到了 SelfListen
 	if is, tcp, udp = inServer.SelfListen(); is {
-		var chantcp chan proxy.TCPRequestInfo
-		var chanudp chan proxy.UDPRequestInfo
+		var chantcp chan netLayer.TCPRequestInfo
+		var chanudp chan netLayer.UDPRequestInfo
 
 		if tcp {
-			chantcp = make(chan proxy.TCPRequestInfo, 2)
+			chantcp = make(chan netLayer.TCPRequestInfo, 2)
 			go func() {
 				for tcpInfo := range chantcp {
 					go passToOutClient(incomingInserverConnState{
@@ -97,7 +97,7 @@ func ListenSer(inServer proxy.Server, defaultOutClient proxy.Client, env *proxy.
 
 		}
 		if udp {
-			chanudp = make(chan proxy.UDPRequestInfo, 2)
+			chanudp = make(chan netLayer.UDPRequestInfo, 2)
 
 			go func() {
 				for udpInfo := range chanudp {
diff --git a/netLayer/netlayer.go b/netLayer/netlayer.go
index 07d0849..264c11c 100644
--- a/netLayer/netlayer.go
+++ b/netLayer/netlayer.go
@@ -5,12 +5,11 @@ Package netLayer contains definitions in network layer AND transport layer.
 
 以后如果要添加 kcp 或 raw socket 等底层协议时，也要在此包 或子包里实现.
 
-Tags
+# Tags
 
 本包提供 embed_geoip 这个 build tag。
 
 若给出 embed_geoip，则会尝试内嵌 GeoLite2-Country.mmdb.tgz 文件；默认不内嵌。
-
 */
 package netLayer
 
@@ -36,12 +35,12 @@ var (
 	ErrTimeout                  = errors.New("timeout")
 )
 
-//做一些网络层的资料准备工作, 可以优化本包其它函数的调用。
+// 做一些网络层的资料准备工作, 可以优化本包其它函数的调用。
 func PrepareInterfaces() {
 	//weKnowThatWeDontHaveIPV6 = !HasIpv6Interface()
 }
 
-//c.SetDeadline(time.Time{})
+// c.SetDeadline(time.Time{})
 func PersistConn(c net.Conn) {
 	c.SetDeadline(time.Time{})
 }
@@ -54,7 +53,7 @@ func IsTCP(r any) *net.TCPConn {
 	return nil
 }
 
-//net.IPConn, net.TCPConn, net.UDPConn, net.UnixConn
+// net.IPConn, net.TCPConn, net.UDPConn, net.UnixConn
 func IsBasicConn(r interface{}) bool {
 	if _, ok := r.(syscall.Conn); ok {
 		return true
@@ -79,7 +78,7 @@ func GetRawConn(reader io.Reader) syscall.RawConn {
 	return nil
 }
 
-//"udp", "udp4", "udp6"
+// "udp", "udp4", "udp6"
 func IsStrUDP_network(s string) bool {
 	switch s {
 	case "udp", "udp4", "udp6":
@@ -117,7 +116,7 @@ type NetDeadliner interface {
 	SetWriteDeadline(t time.Time) error
 }
 
-//实现 NetAddresser
+// 实现 NetAddresser
 type EasyNetAddresser struct {
 	LA, RA net.Addr
 }
@@ -159,8 +158,18 @@ func HasIpv6Interface() bool {
 	return false
 }
 
-//用于定义拒绝响应的行为；可参考 httpLayer.RejectConn
+// 用于定义拒绝响应的行为；可参考 httpLayer.RejectConn
 type RejectConn interface {
 	RejectBehaviorDefined() bool //若为false，则只能直接Close
 	Reject()
 }
+
+type TCPRequestInfo struct {
+	net.Conn
+	Target Addr
+}
+
+type UDPRequestInfo struct {
+	MsgConn
+	Target Addr
+}
diff --git a/netLayer/tun/tun.go b/netLayer/tun/tun.go
new file mode 100644
index 0000000..bf88f3b
--- /dev/null
+++ b/netLayer/tun/tun.go
@@ -0,0 +1,91 @@
+package tun
+
+import (
+	"io"
+	"log"
+	"net"
+
+	"github.com/e1732a364fed/v2ray_simple/netLayer"
+	"github.com/e1732a364fed/v2ray_simple/utils"
+	"github.com/eycorsican/go-tun2socks/core"
+	"github.com/eycorsican/go-tun2socks/tun"
+)
+
+type coreConnAdapter struct {
+	core.UDPConn
+	netLayer.EasyDeadline
+}
+
+func (h *coreConnAdapter) ReadMsgFrom() ([]byte, netLayer.Addr, error) {
+
+	return nil, netLayer.Addr{}, nil
+}
+func (h *coreConnAdapter) WriteMsgTo([]byte, netLayer.Addr) error {
+	return nil
+}
+func (h *coreConnAdapter) CloseConnWithRaddr(raddr netLayer.Addr) error {
+
+	return nil
+}
+func (h *coreConnAdapter) Fullcone() bool {
+	return true
+}
+
+type handler struct {
+	tcpChan chan netLayer.TCPRequestInfo
+	udpChan chan netLayer.UDPRequestInfo
+}
+
+func newHandler() *handler {
+	return &handler{
+		tcpChan: make(chan netLayer.TCPRequestInfo),
+		udpChan: make(chan netLayer.UDPRequestInfo),
+	}
+}
+
+func (h *handler) Handle(conn net.Conn, target *net.TCPAddr) error {
+	tad := netLayer.NewAddrFromTCPAddr(target)
+	h.tcpChan <- netLayer.TCPRequestInfo{Target: tad, Conn: conn}
+	return nil
+}
+
+func (h *handler) Connect(conn core.UDPConn, target *net.UDPAddr) error {
+	uad := netLayer.NewAddrFromUDPAddr(target)
+	adapter := &coreConnAdapter{UDPConn: conn}
+	adapter.InitEasyDeadline()
+
+	h.udpChan <- netLayer.UDPRequestInfo{Target: uad, MsgConn: adapter}
+	return nil
+}
+
+func (h *handler) ReceiveTo(conn core.UDPConn, data []byte, addr *net.UDPAddr) error {
+	log.Println("ReceiveTo called")
+	return nil
+}
+
+func ListenTun() (tunDev io.ReadWriteCloser, err error) {
+
+	//macos 上无法指定tun名称
+	tunDev, err = tun.OpenTunDevice("", "10.1.0.10", "10.1.0.20", "255.255.255.0", nil, false)
+
+	return
+}
+
+func HandleTun(tunDev io.ReadWriteCloser) (tcpChan chan netLayer.TCPRequestInfo, udpChan chan netLayer.UDPRequestInfo) {
+	lwipWriter := core.NewLWIPStack().(io.Writer)
+	core.RegisterOutputFn(func(data []byte) (int, error) {
+		return tunDev.Write(data)
+	})
+	nh := newHandler()
+	core.RegisterTCPConnHandler(nh)
+	core.RegisterUDPConnHandler(nh)
+	go func() {
+		_, err := io.CopyBuffer(lwipWriter, tunDev, make([]byte, utils.MTU))
+		if err != nil {
+			log.Fatalf("tun copying from tunDev to lwip failed: %v", err)
+		}
+	}()
+	tcpChan = nh.tcpChan
+	udpChan = nh.udpChan
+	return
+}
diff --git a/proxy/proxy.go b/proxy/proxy.go
index 8617bfd..bfbbc7b 100644
--- a/proxy/proxy.go
+++ b/proxy/proxy.go
@@ -94,19 +94,9 @@ type Server interface {
 	SelfListen() (is, tcp, udp bool)
 }
 
-type TCPRequestInfo struct {
-	net.Conn
-	Target netLayer.Addr
-}
-
-type UDPRequestInfo struct {
-	netLayer.MsgConn
-	Target netLayer.Addr
-}
-
 type ListenerServer interface {
 	Server
-	StartListen(chan<- TCPRequestInfo, chan<- UDPRequestInfo) io.Closer
+	StartListen(chan<- netLayer.TCPRequestInfo, chan<- netLayer.UDPRequestInfo) io.Closer
 }
 
 type UserServer interface {
diff --git a/proxy/shadowsocks/server.go b/proxy/shadowsocks/server.go
index 5f8aef4..126e435 100644
--- a/proxy/shadowsocks/server.go
+++ b/proxy/shadowsocks/server.go
@@ -162,7 +162,7 @@ func (m *Server) removeUDPByHash(hash netLayer.HashableAddr) {
 	m.Unlock()
 }
 
-func (s *Server) StartListen(_ chan<- proxy.TCPRequestInfo, udpInfoChan chan<- proxy.UDPRequestInfo) io.Closer {
+func (s *Server) StartListen(_ chan<- netLayer.TCPRequestInfo, udpInfoChan chan<- netLayer.UDPRequestInfo) io.Closer {
 	uc, err := net.ListenUDP("udp", s.LUA)
 	if err != nil {
 		log.Panicln("shadowsocks listen udp failed", err)
@@ -226,7 +226,7 @@ func (s *Server) StartListen(_ chan<- proxy.TCPRequestInfo, udpInfoChan chan<- p
 			conn.readChan <- netLayer.AddrData{Data: readbuf.Bytes(), Addr: destAddr}
 
 			if !found {
-				udpInfoChan <- proxy.UDPRequestInfo{
+				udpInfoChan <- netLayer.UDPRequestInfo{
 					MsgConn: conn, Target: destAddr,
 				}
 			}
diff --git a/proxy/tproxy/server_linux.go b/proxy/tproxy/server_linux.go
index 833c37a..e218ba3 100644
--- a/proxy/tproxy/server_linux.go
+++ b/proxy/tproxy/server_linux.go
@@ -60,8 +60,8 @@ type Server struct {
 
 	shouldSetIPTable bool
 
-	infoChan    chan<- proxy.TCPRequestInfo
-	udpInfoChan chan<- proxy.UDPRequestInfo
+	infoChan    chan<- netLayer.TCPRequestInfo
+	udpInfoChan chan<- netLayer.UDPRequestInfo
 	tm          *tproxy.Machine
 	sync.Once
 }
@@ -109,7 +109,7 @@ func (s *Server) Stop() {
 
 }
 
-func (s *Server) StartListen(infoChan chan<- proxy.TCPRequestInfo, udpInfoChan chan<- proxy.UDPRequestInfo) io.Closer {
+func (s *Server) StartListen(infoChan chan<- netLayer.TCPRequestInfo, udpInfoChan chan<- netLayer.UDPRequestInfo) io.Closer {
 
 	tm := new(tproxy.Machine)
 
@@ -122,7 +122,7 @@ func (s *Server) StartListen(infoChan chan<- proxy.TCPRequestInfo, udpInfoChan c
 			tcpconn := conn.(*net.TCPConn)
 			targetAddr := tproxy.HandshakeTCP(tcpconn)
 
-			info := proxy.TCPRequestInfo{
+			info := netLayer.TCPRequestInfo{
 				Conn:   tcpconn,
 				Target: targetAddr,
 			}
@@ -184,7 +184,7 @@ func (s *Server) StartListen(infoChan chan<- proxy.TCPRequestInfo, udpInfoChan c
 					return
 				}
 
-				udpInfoChan <- proxy.UDPRequestInfo{MsgConn: msgConn, Target: raddr}
+				udpInfoChan <- netLayer.UDPRequestInfo{MsgConn: msgConn, Target: raddr}
 
 			}
 		}()
diff --git a/proxy/tun/tun.go b/proxy/tun/tun.go
new file mode 100644
index 0000000..583a5a0
--- /dev/null
+++ b/proxy/tun/tun.go
@@ -0,0 +1,90 @@
+package tun
+
+import (
+	"io"
+	"net"
+	"net/url"
+
+	"github.com/e1732a364fed/v2ray_simple/netLayer"
+	"github.com/e1732a364fed/v2ray_simple/netLayer/tun"
+	"github.com/e1732a364fed/v2ray_simple/proxy"
+	"github.com/e1732a364fed/v2ray_simple/utils"
+	"go.uber.org/zap"
+)
+
+const name = "tun"
+
+type ServerCreator struct{ proxy.CreatorCommonStruct }
+
+func (ServerCreator) URLToListenConf(url *url.URL, lc *proxy.ListenConf, format int) (*proxy.ListenConf, error) {
+	if lc == nil {
+		return nil, utils.ErrNilParameter
+	}
+
+	return lc, nil
+}
+
+func (ServerCreator) NewServer(lc *proxy.ListenConf) (proxy.Server, error) {
+
+	s := &Server{}
+
+	return s, nil
+}
+
+type Server struct {
+	proxy.Base
+
+	stopped bool
+
+	infoChan chan<- netLayer.TCPRequestInfo
+}
+
+func (*Server) Name() string { return name }
+
+func (s *Server) SelfListen() (is, tcp, udp bool) {
+	is = true
+	tcp = true
+	udp = true
+	return
+}
+
+func (s *Server) Close() error {
+	s.Stop()
+	return nil
+}
+
+func (s *Server) Stop() {
+	if !s.stopped {
+		s.stopped = true
+		close(s.infoChan)
+	}
+
+}
+
+func (s *Server) StartListen(infoChan chan<- netLayer.TCPRequestInfo, udpInfoChan chan<- netLayer.UDPRequestInfo) io.Closer {
+	tunDev, err := tun.ListenTun()
+	if err != nil {
+		if ce := utils.CanLogErr("tun listen failed"); ce != nil {
+			ce.Write(zap.Error(err))
+		}
+		return nil
+	}
+	s.infoChan = infoChan
+
+	tchan, _ := tun.HandleTun(tunDev)
+	go func() {
+		for tr := range tchan {
+			if s.stopped {
+				return
+			}
+			infoChan <- tr
+
+		}
+	}()
+
+	return s
+}
+
+func (s *Server) Handshake(underlay net.Conn) (net.Conn, netLayer.MsgConn, netLayer.Addr, error) {
+	return nil, nil, netLayer.Addr{}, utils.ErrUnImplemented
+}