diff --git a/specification/eventgrid/resource-manager/Microsoft.EventGrid/preview/2020-04-01-preview/EventGrid.json b/specification/eventgrid/resource-manager/Microsoft.EventGrid/preview/2020-04-01-preview/EventGrid.json
index 9278b810fb27..1a09912dbe2d 100644
--- a/specification/eventgrid/resource-manager/Microsoft.EventGrid/preview/2020-04-01-preview/EventGrid.json
+++ b/specification/eventgrid/resource-manager/Microsoft.EventGrid/preview/2020-04-01-preview/EventGrid.json
@@ -2259,8 +2259,8 @@
         "tags": [
           "TopicTypes"
         ],
-        "summary": "List event types",
-        "description": "List event types for a topic type",
+        "summary": "List event types.",
+        "description": "List event types for a topic type.",
         "operationId": "TopicTypes_ListEventTypes",
         "consumes": [],
         "produces": [
@@ -2270,7 +2270,7 @@
           {
             "name": "topicTypeName",
             "in": "path",
-            "description": "Name of the topic type",
+            "description": "Name of the topic type.",
             "required": true,
             "type": "string"
           },
@@ -2347,7 +2347,8 @@
         },
         "metricResourceId": {
           "description": "Metric resource id for the domain.",
-          "type": "string"
+          "type": "string",
+          "readOnly": true
         },
         "allowTrafficFromAllIPs": {
           "description": "This determines if IP filtering rules ought to be evaluated or not. By default it will not evaluate and will allow traffic from all IPs.",
@@ -2551,6 +2552,17 @@
           "additionalProperties": {
             "type": "string"
           }
+        },
+        "allowTrafficFromAllIPs": {
+          "description": "This determines if IP filtering rules ought to be evaluated or not. By default it will not evaluate and will allow traffic from all IPs.",
+          "type": "boolean"
+        },
+        "inboundIpRules": {
+          "description": "This determines the IP filtering rules that ought be applied when events are received on this domain.",
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/InboundIpRule"
+          }
         }
       }
     },
@@ -3526,7 +3538,8 @@
         },
         "metricResourceId": {
           "description": "Metric resource id for the topic.",
-          "type": "string"
+          "type": "string",
+          "readOnly": true
         },
         "allowTrafficFromAllIPs": {
           "description": "This determines if IP filtering rules ought to be evaluated or not. By default it will not evaluate and will allow traffic from all IPs.",
@@ -3567,6 +3580,17 @@
           "additionalProperties": {
             "type": "string"
           }
+        },
+        "allowTrafficFromAllIPs": {
+          "description": "This determines if IP filtering rules ought to be evaluated or not. By default it will not evaluate and will allow traffic from all IPs.",
+          "type": "boolean"
+        },
+        "inboundIpRules": {
+          "description": "This determines the IP filtering rules that ought be applied when events are received on this domain.",
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/InboundIpRule"
+          }
         }
       }
     },
diff --git a/specification/eventgrid/resource-manager/Microsoft.EventGrid/preview/2020-04-01-preview/examples/Domains_Update.json b/specification/eventgrid/resource-manager/Microsoft.EventGrid/preview/2020-04-01-preview/examples/Domains_Update.json
index 2b946735f493..a2fc880d489d 100644
--- a/specification/eventgrid/resource-manager/Microsoft.EventGrid/preview/2020-04-01-preview/examples/Domains_Update.json
+++ b/specification/eventgrid/resource-manager/Microsoft.EventGrid/preview/2020-04-01-preview/examples/Domains_Update.json
@@ -8,7 +8,18 @@
       "tags": {
         "tag1": "value1",
         "tag2": "value2"
-      }
+      },
+      "allowTrafficFromAllIPs": false,
+      "inboundIpRules": [
+        {
+          "ipMask": "12.18.30.15",
+          "action": "Allow"
+        },
+        {
+          "ipMask": "12.18.176.1",
+          "action": "Allow"
+        }
+      ]
     }
   },
   "responses": {
@@ -16,7 +27,18 @@
       "body": {
         "properties": {
           "endpoint": "https://exampledomain1.westus2-1.eventgrid.azure.net/api/events",
-          "provisioningState": "Succeeded"
+          "provisioningState": "Succeeded",
+          "allowTrafficFromAllIPs": false,
+          "inboundIpRules": [
+            {
+              "ipMask": "12.18.30.15",
+              "action": "Allow"
+            },
+            {
+              "ipMask": "12.18.176.1",
+              "action": "Allow"
+            }
+          ]
         },
         "id": "/subscriptions/5b4b650e-28b9-4790-b3ab-ddbd88d727c4/resourceGroups/examplerg/providers/Microsoft.EventGrid/domains/exampledomain1",
         "location": "westus2",
diff --git a/specification/eventgrid/resource-manager/Microsoft.EventGrid/preview/2020-04-01-preview/examples/Topics_Update.json b/specification/eventgrid/resource-manager/Microsoft.EventGrid/preview/2020-04-01-preview/examples/Topics_Update.json
index 9157576d137f..58aae7d61bb8 100644
--- a/specification/eventgrid/resource-manager/Microsoft.EventGrid/preview/2020-04-01-preview/examples/Topics_Update.json
+++ b/specification/eventgrid/resource-manager/Microsoft.EventGrid/preview/2020-04-01-preview/examples/Topics_Update.json
@@ -8,7 +8,18 @@
       "tags": {
         "tag1": "value1",
         "tag2": "value2"
-      }
+      },
+      "allowTrafficFromAllIPs": false,
+      "inboundIpRules": [
+        {
+          "ipMask": "12.18.30.15",
+          "action": "Allow"
+        },
+        {
+          "ipMask": "12.18.176.1",
+          "action": "Allow"
+        }
+      ]
     }
   },
   "responses": {
@@ -16,7 +27,18 @@
       "body": {
         "properties": {
           "endpoint": "https://exampletopic1.westus2-1.eventgrid.azure.net/api/events",
-          "provisioningState": "Succeeded"
+          "provisioningState": "Succeeded",
+          "allowTrafficFromAllIPs": false,
+          "inboundIpRules": [
+            {
+              "ipMask": "12.18.30.15",
+              "action": "Allow"
+            },
+            {
+              "ipMask": "12.18.176.1",
+              "action": "Allow"
+            }
+          ]
         },
         "id": "/subscriptions/5b4b650e-28b9-4790-b3ab-ddbd88d727c4/resourceGroups/examplerg/providers/Microsoft.EventGrid/topics/exampletopic1",
         "location": "westus2",