diff --git a/pkg/util/iproute2/errors.go b/pkg/util/iproute2/errors.go
new file mode 100644
index 0000000000..011fd9354e
--- /dev/null
+++ b/pkg/util/iproute2/errors.go
@@ -0,0 +1,29 @@
+// Copyright 2019 Yunion
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package iproute2
+
+import (
+	"syscall"
+
+	"yunion.io/x/pkg/errors"
+)
+
+func IsErrSrch(err error) bool {
+	err = errors.Cause(err)
+	if e, ok := err.(syscall.Errno); ok && e == 3 {
+		return true
+	}
+	return false
+}