diff --git a/coap/coap-in.html b/coap/coap-in.html
index 45a0f72..004c848 100644
--- a/coap/coap-in.html
+++ b/coap/coap-in.html
@@ -25,7 +25,7 @@
         defaults: {
             name: { value: "" },
             port: { value: 5683, required: true },
-            ipv6: { value: true, required: true },
+            ipv6: { value: false, required: true },
         },
         inputs: 0,
         outputs: 0,
diff --git a/coap/locales/de/coap-in.json b/coap/locales/de/coap-in.json
index 7341238..67be4ba 100644
--- a/coap/locales/de/coap-in.json
+++ b/coap/locales/de/coap-in.json
@@ -21,7 +21,7 @@
             "placeholder": "Name"
         },
         "configInputIPv6": {
-            "label": "IPv6 unterstützen"
+            "label": "UDP6-Agent verwenden"
         },
         "configInputPort": {
             "label": "Port"
diff --git a/coap/locales/en-US/coap-in.json b/coap/locales/en-US/coap-in.json
index 6ea6663..ca6f301 100644
--- a/coap/locales/en-US/coap-in.json
+++ b/coap/locales/en-US/coap-in.json
@@ -21,7 +21,7 @@
             "placeholder": "Name"
         },
         "configInputIPv6": {
-            "label": "Support IPv6"
+            "label": "Use UDP6 agent"
         },
         "configInputPort": {
             "label": "Port"