diff --git a/core/tcp.go b/core/tcp.go
index 1a6d3c6..7195fa1 100644
--- a/core/tcp.go
+++ b/core/tcp.go
@@ -53,7 +53,7 @@ func withTCPHandler(handle func(adapter.TCPConn)) option.Option {
 
 			defer func() {
 				if err != nil {
-					glog.Warningf("forward tcp request: %s:%d->%s:%d: %s",
+					glog.Debugf("forward tcp request: %s:%d->%s:%d: %s",
 						id.RemoteAddress, id.RemotePort, id.LocalAddress, id.LocalPort, err)
 				}
 			}()
diff --git a/core/udp.go b/core/udp.go
index 1e651df..288cc9b 100644
--- a/core/udp.go
+++ b/core/udp.go
@@ -20,7 +20,7 @@ func withUDPHandler(handle func(adapter.UDPConn)) option.Option {
 			)
 			ep, err := r.CreateEndpoint(&wq)
 			if err != nil {
-				glog.Warningf("forward udp request: %s:%d->%s:%d: %s",
+				glog.Debugf("forward udp request: %s:%d->%s:%d: %s",
 					id.RemoteAddress, id.RemotePort, id.LocalAddress, id.LocalPort, err)
 				return
 			}