diff --git a/gold/link/me.go b/gold/link/me.go
index b0242de..da3e204 100644
--- a/gold/link/me.go
+++ b/gold/link/me.go
@@ -92,7 +92,14 @@ func (m *Me) MTU() uint16 {
 	return m.mtu
 }
 
+func (m *Me) Close() error {
+	m.nic.Down()
+	return m.nic.Close()
+}
+
 func (m *Me) ListenFromNIC() {
+	m.nic.Up()
+
 	// 双缓冲区
 	buf := make([]byte, m.MTU()+68)  // 增加报头长度与 TEA 冗余
 	buf2 := make([]byte, m.MTU()+68) // 增加报头长度与 TEA 冗余
diff --git a/upper/services/wg/wg.go b/upper/services/wg/wg.go
index ccc986f..f62f142 100644
--- a/upper/services/wg/wg.go
+++ b/upper/services/wg/wg.go
@@ -19,7 +19,6 @@ type WG struct {
 	c         *config.Config
 	key       [32]byte
 	PublicKey string
-	nic       lower.NICIO
 	me        link.Me
 }
 
@@ -49,19 +48,16 @@ func NewWireGold(c *config.Config) (wg WG, err error) {
 
 func (wg *WG) Start(srcport, destport, mtu uint16) {
 	wg.init(srcport, destport, mtu)
-	wg.nic.Up()
 	go wg.me.ListenFromNIC()
 }
 
 func (wg *WG) Run(srcport, destport, mtu uint16) {
 	wg.init(srcport, destport, mtu)
-	wg.nic.Up()
 	wg.me.ListenFromNIC()
 }
 
 func (wg *WG) Stop() {
-	wg.nic.Close()
-	wg.nic.Down()
+	_ = wg.me.Close()
 }
 
 func (wg *WG) init(srcport, destport, mtu uint16) {