diff --git a/tap.go b/tap.go
index 59d039c..b698270 100644
--- a/tap.go
+++ b/tap.go
@@ -3,7 +3,9 @@ package main
 import (
 	"context"
 	"log"
+	"os/exec"
 	gen "slimming/proto/gen"
+	"strings"
 	"time"
 
 	"github.com/songgao/packets/ethernet"
@@ -67,6 +69,17 @@ func (nc *NetCard) Run() {
 	go nc.runRead()
 	go nc.runWrite()
 	// go nc.cli.run()
+	time.Sleep(time.Second)
+	cmd := strings.Split("addr add 10.10.10.10/24 dev stap", " ")
+	err := exec.Command(cmd[0], cmd[1:]...).Run()
+	if err != nil {
+		panic(err)
+	}
+	cmd = strings.Split("ip link set dev stap up", " ")
+	err = exec.Command(cmd[0], cmd[1:]...).Run()
+	if err != nil {
+		panic(err)
+	}
 	nc.server.run()
 }
 
@@ -109,6 +122,7 @@ func (nc *NetCard) runRead() {
 			framesBytes = append(framesBytes, []byte(rframe))
 		}
 
+		println(len(framesBytes))
 		if len(framesBytes) > 0 {
 			if nc.cli.conn == nil {
 				nc.cli.connect()