diff --git a/examples/nip_addr.c b/examples/nip_addr.c
index b6aa8a56b29d1c3bf75aeb3b324f16f5665a4bc7..00f5cc6ddeee9258930b465172c14f6a42110926 100644
--- a/examples/nip_addr.c
+++ b/examples/nip_addr.c
@@ -96,7 +96,7 @@ int main(int argc, char **argv_input)
 	argv++;
 	memset(dev, 0, ARRAY_LEN);
 	ret = sscanf(*argv, "%s", dev);
-	if (strncmp(dev, "wlan", NAME_WLAN_LEN) && strncmp(dev, "eth", NAME_ETH_LEN)) {
+	if (strncmp(dev, "wlan", NAME_WLAN_LEN)) {
 		printf("unsupport addr cfg cmd-1, cmd=%s.\n", dev);
 		cmd_help();
 		return -1;
diff --git a/examples/nip_lib.h b/examples/nip_lib.h
index a32dfe70d5297fe40cfcb299f79520ee9d7163fb..43c64f868b477ff20500d1d96580e96bfd900d7e 100644
--- a/examples/nip_lib.h
+++ b/examples/nip_lib.h
@@ -39,8 +39,8 @@
 #define DEMO_INPUT_3  4
 #define DEMO_INPUT_4  5
 
-/* Eth0 and wlan0 are optional. Change the value based on the actual interface */
-#define NIC_NAME "eth0"
+/* Change the value based on the actual interface */
+#define NIC_NAME "wlan0"
 
 #define BUFLEN          2048
 #define LISTEN_MAX      3
diff --git a/examples/nip_route.c b/examples/nip_route.c
index 46b9d01cb41bc8cf84b6edf3cef152f1e699176c..47f56bdf3eda07c3288a3bc0be3a2918b10d7bfd 100644
--- a/examples/nip_route.c
+++ b/examples/nip_route.c
@@ -134,7 +134,7 @@ int main(int argc, char **argv_input)
 	argv++;
 	memset(dev, 0, ARRAY_LEN);
 	ret = sscanf(*argv, "%s", dev);
-	if (strncmp(dev, "wlan", NAME_WLAN_LEN) && strncmp(dev, "eth", NAME_ETH_LEN)) {
+	if (strncmp(dev, "wlan", NAME_WLAN_LEN)) {
 		printf("unsupport route cfg cmd-3, cmd=%s.\n", dev);
 		cmd_help();
 		return -1;