diff --git a/LICENSE b/LICENSE
index c639838..2fa9023 100644
--- a/LICENSE
+++ b/LICENSE
@@ -4,6 +4,7 @@ Copyright (c) 2022 Huawei Device Co., Ltd. All rights reserved.
 The code/linux/ subdirectorie is licensed under the GPL V2 License.
 The code/ommon/ subdirectorie is licensed under 3-Clause BSD License.
 The examples/ subdirectorie is licensed under 3-Clause BSD License.
+The tools/ subdirectorie is licensed under the GPL V2 License.
 
 a) GNU General Public License version 2, (https://opensource.org/licenses/GPL-2.0)
 This library is free software; you can redistribute it and/or
diff --git a/examples/check_nip_enable.c b/examples/check_nip_enable.c
index 3f96b30..88bf421 100644
--- a/examples/check_nip_enable.c
+++ b/examples/check_nip_enable.c
@@ -62,8 +62,10 @@ void _check_nip_enable(void)
 
 int check_nip_enable(void)
 {
-	if (g_nip_enable == NIP_ENABLE_INVALID)
+	if (g_nip_enable == NIP_ENABLE_INVALID) {
 		_check_nip_enable();
+		g_nip_enable = (g_nip_enable == 1 ? 1 : 0);
+	}
 
 	return g_nip_enable;
 }
@@ -72,7 +74,10 @@ int main(int argc, char **argv)
 {
 	int af_ninet = check_nip_enable();
 
-	printf("nip_enable=%d\n\n", g_nip_enable);
+	if (g_nip_enable)
+		printf("Support NewIP.\n\n");
+	else
+		printf("Not support NewIP.\n\n");
 	return 0;
 }