diff --git a/samples/net/dns_client/README b/samples/net/dns_client/README
index bb56936e9a2..347afa0b499 100644
--- a/samples/net/dns_client/README
+++ b/samples/net/dns_client/README
@@ -137,3 +137,13 @@ Usage
     Response: IP address            Size: 4:        63 80 4 161
 
     [fiber:102] DNS Response: OK
+
+
+Compiler Warnings
+-----------------
+
+The network layer used in this sample code will be replaced once the
+new IP stack is ready. So, "netz" is tagged as "deprecated" and the
+following warnings will be displayed by the compiler:
+
+warning: 'netz_tx' is deprecated [-Wdeprecated-declarations]
diff --git a/samples/net/nats_clients/publisher/README b/samples/net/nats_clients/publisher/README
index a5bec3bc428..43abd2246bf 100644
--- a/samples/net/nats_clients/publisher/README
+++ b/samples/net/nats_clients/publisher/README
@@ -106,3 +106,13 @@ Final remarks
 
 Full NATS support is not yet achieved. However, current publisher
 and subscriber routines are enough to write basic NATS applications.
+
+
+Compiler Warnings
+-----------------
+
+The network layer used in this sample code will be replaced once the
+new IP stack is ready. So, "netz" is tagged as "deprecated" and the
+following warnings will be displayed by the compiler:
+
+warning: 'netz_tx' is deprecated [-Wdeprecated-declarations]
diff --git a/samples/net/nats_clients/subscriber/README b/samples/net/nats_clients/subscriber/README
index f76ec9937c0..d32b35a3ad1 100644
--- a/samples/net/nats_clients/subscriber/README
+++ b/samples/net/nats_clients/subscriber/README
@@ -92,3 +92,13 @@ Final remarks
 
 Full NATS support is not yet achieved. However, current publisher
 and subscriber routines are enough to write basic NATS applications.
+
+
+Compiler Warnings
+-----------------
+
+The network layer used in this sample code will be replaced once the
+new IP stack is ready. So, "netz" is tagged as "deprecated" and the
+following warnings will be displayed by the compiler:
+
+warning: 'netz_tx' is deprecated [-Wdeprecated-declarations]
diff --git a/samples/net/paho_mqtt_clients/publisher/README b/samples/net/paho_mqtt_clients/publisher/README
index 1d4084fcea1..ebf2cbc3abd 100644
--- a/samples/net/paho_mqtt_clients/publisher/README
+++ b/samples/net/paho_mqtt_clients/publisher/README
@@ -120,3 +120,13 @@ The provided source code perhaps does not exemplify the best way to use
 Paho's MQTT in Zephyr. For example, PINGREQ must be sent periodically,
 but not too often as in this use-case. Furthermore, DISCONNECT is never
 used here.
+
+
+Compiler Warnings
+-----------------
+
+The network layer used in this sample code will be replaced once the
+new IP stack is ready. So, "netz" is tagged as "deprecated" and the
+following warnings will be displayed by the compiler:
+
+warning: 'netz_tx' is deprecated [-Wdeprecated-declarations]
diff --git a/samples/net/paho_mqtt_clients/subscriber/README b/samples/net/paho_mqtt_clients/subscriber/README
index 4b62faad116..b9d19f732c5 100644
--- a/samples/net/paho_mqtt_clients/subscriber/README
+++ b/samples/net/paho_mqtt_clients/subscriber/README
@@ -119,3 +119,13 @@ Troubleshooting
         with the server. This is the expected behavior.
 
       * A network error. Check the LAN or the mosquitto server.
+
+
+Compiler Warnings
+-----------------
+
+The network layer used in this sample code will be replaced once the
+new IP stack is ready. So, "netz" is tagged as "deprecated" and the
+following warnings will be displayed by the compiler:
+
+warning: 'netz_tx' is deprecated [-Wdeprecated-declarations]