diff --git a/netcard.go b/netcard.go
index be88d4a..e1e1da7 100644
--- a/netcard.go
+++ b/netcard.go
@@ -73,11 +73,11 @@ func NewNetTunnel() *NetTunnel {
 
 		for rbuf := range nt.reader {
 
-			log.Println(len(rbuf)) // 数据长度
 			var frame ethernet.Frame = rbuf
 
 			switch frame.Ethertype() {
 			case ethernet.ARP:
+				log.Printf("bytes len: %d type: % x", len(rbuf), frame) // 数据长度
 				nt.clients.Range(func(key, value any) bool {
 					if key == nt.ipv4key {
 						return true
@@ -89,6 +89,7 @@ func NewNetTunnel() *NetTunnel {
 					return true
 				})
 			case ethernet.IPv4:
+				log.Printf("bytes len: %d type: % x", len(rbuf), frame)
 				log.Println(len(frame))
 			}