diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2020-05-01/azureFirewall.json b/specification/network/resource-manager/Microsoft.Network/stable/2020-05-01/azureFirewall.json
index 36a08bc94432..4d9f4d6b5c5e 100644
--- a/specification/network/resource-manager/Microsoft.Network/stable/2020-05-01/azureFirewall.json
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2020-05-01/azureFirewall.json
@@ -462,15 +462,30 @@
       },
       "description": "IpGroups associated with azure firewall."
     },
-    "HubIPAddresses": {
+    "HubPublicIPAddresses": {
       "properties": {
-        "publicIPAddresses": {
+        "addresses": {
           "type": "array",
-          "description": "List of Public IP addresses associated with azure firewall.",
+          "description": "The number of Public IP addresses associated with azure firewall.",
           "items": {
             "$ref": "#/definitions/AzureFirewallPublicIPAddress"
           }
         },
+        "count": {
+          "type": "integer",
+          "format": "int32",
+          "description": "Private IP Address associated with azure firewall."
+        }
+      },
+      "description": "Public IP addresses associated with azure firewall."
+    },
+    "HubIPAddresses": {
+      "properties": {
+        "publicIPs": {
+          "type": "array",
+          "description": "Public IP addresses associated with azure firewall.",
+          "$ref": "#/definitions/HubPublicIPAddresses"
+        },
         "privateIPAddress": {
           "type": "string",
           "description": "Private IP Address associated with azure firewall."
@@ -537,7 +552,6 @@
           "description": "The firewallPolicy associated with this azure firewall."
         },
         "hubIpAddresses": {
-          "readOnly": true,
           "description": "IP addresses associated with AzureFirewall.",
           "$ref": "#/definitions/HubIPAddresses"
         },
diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2020-05-01/examples/AzureFirewallPutInHub.json b/specification/network/resource-manager/Microsoft.Network/stable/2020-05-01/examples/AzureFirewallPutInHub.json
index 6a825ddad041..58886d7c3f20 100644
--- a/specification/network/resource-manager/Microsoft.Network/stable/2020-05-01/examples/AzureFirewallPutInHub.json
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2020-05-01/examples/AzureFirewallPutInHub.json
@@ -21,6 +21,12 @@
         },
         "firewallPolicy": {
           "id": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/firewallPolicies/policy1"
+        },
+        "hubIpAddresses": {
+          "publicIPs": {
+            "addresses": [],
+            "count": 1
+          }
         }
       }
     }
@@ -51,11 +57,14 @@
             "id": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/firewallPolicies/policy1"
           },
           "hubIpAddresses": {
-            "publicIPAddresses": [
-              {
-                "address": "13.73.240.12"
-              }
-            ],
+            "publicIPs": {
+              "addresses": [
+                {
+                  "address": "13.73.240.12"
+                }
+              ],
+              "count": 1
+            },
             "privateIPAddress": "10.0.0.0"
           },
           "additionalProperties": {}
@@ -87,11 +96,14 @@
             "id": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/firewallPolicies/policy1"
           },
           "hubIpAddresses": {
-            "publicIPAddresses": [
-              {
-                "address": "13.73.240.12"
-              }
-            ],
+            "publicIPs": {
+              "addresses": [
+                {
+                  "address": "13.73.240.12"
+                }
+              ],
+              "count": 1
+            },
             "privateIPAddress": "10.0.0.0"
           },
           "ipGroups": [],