diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/examples/VirtualHubGet.json b/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/examples/VirtualHubGet.json
index dc950b5147ed..97be9d2e0a27 100644
--- a/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/examples/VirtualHubGet.json
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/examples/VirtualHubGet.json
@@ -27,7 +27,8 @@
             "10.10.1.12",
             "10.10.1.13"
           ],
-          "allowBranchToBranchTraffic": false
+          "allowBranchToBranchTraffic": false,
+          "preferredRoutingGateway": "ExpressRoute"
         }
       }
     }
diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/examples/VirtualHubList.json b/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/examples/VirtualHubList.json
index 875b8f5db958..18731b16ba83 100644
--- a/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/examples/VirtualHubList.json
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/examples/VirtualHubList.json
@@ -62,7 +62,8 @@
                 "10.10.1.12",
                 "10.10.1.13"
               ],
-              "allowBranchToBranchTraffic": false
+              "allowBranchToBranchTraffic": false,
+              "preferredRoutingGateway": "ExpressRoute"
             }
           },
           {
@@ -120,7 +121,8 @@
                 "10.10.1.12",
                 "10.10.1.13"
               ],
-              "allowBranchToBranchTraffic": false
+              "allowBranchToBranchTraffic": false,
+              "preferredRoutingGateway": "ExpressRoute"
             }
           }
         ]
diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/examples/VirtualHubListByResourceGroup.json b/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/examples/VirtualHubListByResourceGroup.json
index e3b2363c7ee9..86aaa1a350e3 100644
--- a/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/examples/VirtualHubListByResourceGroup.json
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/examples/VirtualHubListByResourceGroup.json
@@ -63,7 +63,8 @@
                 "10.10.1.12",
                 "10.10.1.13"
               ],
-              "allowBranchToBranchTraffic": false
+              "allowBranchToBranchTraffic": false,
+              "preferredRoutingGateway": "ExpressRoute"
             }
           },
           {
@@ -121,7 +122,8 @@
                 "10.10.1.12",
                 "10.10.1.13"
               ],
-              "allowBranchToBranchTraffic": false
+              "allowBranchToBranchTraffic": false,
+              "preferredRoutingGateway": "ExpressRoute"
             }
           }
         ]
diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/examples/VirtualHubPut.json b/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/examples/VirtualHubPut.json
index d9711291d997..e138a1037d6c 100644
--- a/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/examples/VirtualHubPut.json
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/examples/VirtualHubPut.json
@@ -40,7 +40,8 @@
             "10.10.1.12",
             "10.10.1.13"
           ],
-          "allowBranchToBranchTraffic": false
+          "allowBranchToBranchTraffic": false,
+          "preferredRoutingGateway": "ExpressRoute"
         }
       }
     },
@@ -65,7 +66,8 @@
             "10.10.1.12",
             "10.10.1.13"
           ],
-          "allowBranchToBranchTraffic": false
+          "allowBranchToBranchTraffic": false,
+          "preferredRoutingGateway": "ExpressRoute"
         }
       }
     }
diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/virtualWan.json b/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/virtualWan.json
index f4571ae750c1..dda5ddbef8d9 100644
--- a/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/virtualWan.json
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2021-02-01/virtualWan.json
@@ -5809,10 +5809,27 @@
           "type": "boolean",
           "readOnly": false,
           "description": "Flag to control transit for VirtualRouter hub."
+        },
+        "preferredRoutingGateway": {
+          "$ref": "#/definitions/PreferredRoutingGateway",
+          "description": "The preferred gateway to route on-prem traffic"
         }
       },
       "description": "Parameters for VirtualHub."
     },
+    "PreferredRoutingGateway": {
+      "type": "string",
+      "description": "The preferred routing gateway types",
+      "enum": [
+        "ExpressRoute",
+        "VpnGateway",
+        "None"
+      ],
+      "x-ms-enum": {
+        "name": "PreferredRoutingGateway",
+        "modelAsString": true
+      }
+    },
     "RoutingState": {
       "type": "string",
       "description": "The current routing state of the VirtualHub.",