diff --git a/client.go b/client.go
index a271517..6f7b70b 100644
--- a/client.go
+++ b/client.go
@@ -9,7 +9,7 @@ import (
 	"time"
 )
 
-func NewClient(addr string, server string, target string, timeout int, sproto int, rproto int, pingSeq int) (*Client, error) {
+func NewClient(addr string, server string, target string, timeout int, sproto int, rproto int) (*Client, error) {
 
 	ipaddr, err := net.ResolveUDPAddr("udp", addr)
 	if err != nil {
@@ -32,7 +32,6 @@ func NewClient(addr string, server string, target string, timeout int, sproto in
 		timeout:      timeout,
 		sproto:       sproto,
 		rproto:       rproto,
-		pingSeq:      pingSeq,
 	}, nil
 }
 
@@ -43,7 +42,6 @@ type Client struct {
 	timeout int
 	sproto  int
 	rproto  int
-	pingSeq int
 
 	ipaddr *net.UDPAddr
 	addr   string
@@ -121,16 +119,12 @@ func (p *Client) Run() {
 	interval := time.NewTicker(time.Second)
 	defer interval.Stop()
 
-	intervalPing := time.NewTicker(time.Millisecond * (time.Duration)(p.pingSeq))
-	defer intervalPing.Stop()
-
 	for {
 		select {
 		case <-interval.C:
 			p.checkTimeoutConn()
-			p.showNet()
-		case <-intervalPing.C:
 			p.ping()
+			p.showNet()
 		case r := <-recv:
 			p.processPacket(r)
 		}
@@ -241,11 +235,13 @@ func (p *Client) checkTimeoutConn() {
 }
 
 func (p *Client) ping() {
-	now := time.Now()
-	b, _ := now.MarshalBinary()
-	sendICMP(p.id, p.sequence, *p.conn, p.ipaddrServer, p.targetAddr, "", (uint32)(PING), b, p.sproto, p.rproto)
-	fmt.Printf("ping %s %s %d %d %d %d\n", p.addrServer, now.String(), p.sproto, p.rproto, p.id, p.sequence)
-	p.sequence++
+	if p.sendPacket == 0 {
+		now := time.Now()
+		b, _ := now.MarshalBinary()
+		sendICMP(p.id, p.sequence, *p.conn, p.ipaddrServer, p.targetAddr, "", (uint32)(PING), b, p.sproto, p.rproto)
+		fmt.Printf("ping %s %s %d %d %d %d\n", p.addrServer, now.String(), p.sproto, p.rproto, p.id, p.sequence)
+		p.sequence++
+	}
 }
 
 func (p *Client) showNet() {
diff --git a/cmd/main.go b/cmd/main.go
index e2ede6f..97ffac0 100644
--- a/cmd/main.go
+++ b/cmd/main.go
@@ -36,9 +36,6 @@ Usage:
 
     -rproto   客户端接收ping协议的协议，默认是0
               The protocol that the client receives the ping. The default is 0.
-
-    -ping     客户端发送ping协议的间隔
-              The protocol that the client receives the ping. The default is 0.
 `
 
 func main() {
@@ -50,7 +47,6 @@ func main() {
 	timeout := flag.Int("timeout", 60, "conn timeout")
 	sproto := flag.Int("sproto", 8, "send ping proto")
 	rproto := flag.Int("rproto", 0, "recv ping proto")
-	ping := flag.Int("ping", 1000, "recv ping proto")
 	flag.Usage = func() {
 		fmt.Printf(usage)
 	}
@@ -80,7 +76,7 @@ func main() {
 		fmt.Printf("server %s\n", *server)
 		fmt.Printf("target %s\n", *target)
 
-		c, err := pingtunnel.NewClient(*listen, *server, *target, *timeout, *sproto, *rproto, *ping)
+		c, err := pingtunnel.NewClient(*listen, *server, *target, *timeout, *sproto, *rproto)
 		if err != nil {
 			fmt.Printf("ERROR: %s\n", err.Error())
 			return