Update ROC to 1.4.50 for release-1.6

Change-Id: Ia4c792fb00716d5127c6133b1c3ed06b44d241fa
diff --git a/configs/release-1.6 b/configs/release-1.6
index 694f423..511b8b8 100644
--- a/configs/release-1.6
+++ b/configs/release-1.6
@@ -9,7 +9,7 @@
 5G_RAN_SIM_CHART         := aether/5g-ran-sim --version 0.3.0
 
 # For installing the ROC
-AETHER_ROC_UMBRELLA_CHART := aether/aether-roc-umbrella --version 1.4.45
+AETHER_ROC_UMBRELLA_CHART := aether/aether-roc-umbrella --version 1.4.50
 ATOMIX_CONTROLLER_CHART   := atomix/atomix-controller --version 0.6.8
 ATOMIX_RAFT_STORAGE_CHART := atomix/atomix-raft-storage --version 0.1.15
 ONOS_OPERATOR_CHART       := onosproject/onos-operator --version 0.4.14
diff --git a/roc-4g-models-v4.json b/roc-4g-models-v4.json
index bcecf8e..7a80422 100644
--- a/roc-4g-models-v4.json
+++ b/roc-4g-models-v4.json
@@ -79,6 +79,7 @@
                 {
                     "admin-status": "ENABLE",
                     "display-name": "IP pool",
+                    "dnn": "internet",
                     "dns-primary": "8.8.8.8",
                     "id": "aiab-ip-pool",
                     "mtu": 1460,
diff --git a/roc-5g-models-v4.json b/roc-5g-models-v4.json
index f1a790c..147b74a 100644
--- a/roc-5g-models-v4.json
+++ b/roc-5g-models-v4.json
@@ -79,6 +79,7 @@
                 {
                     "admin-status": "ENABLE",
                     "display-name": "IP pool",
+                    "dnn": "internet",
                     "dns-primary": "8.8.8.8",
                     "id": "aiab-ip-pool",
                     "mtu": 1460,