diff --git a/overcloud-source.yaml b/overcloud-source.yaml
index 2d7f6b01d9..e9b7c7a139 100644
--- a/overcloud-source.yaml
+++ b/overcloud-source.yaml
@@ -115,6 +115,13 @@ parameters:
       scripts or be sure to keep 'datacentre' as a mapping network name.
     type: string
     default: "datacentre:br-ex"
+  NeutronNetworkVLANRanges:
+    default: 'datacentre'
+    description: |
+      The Neutron ML2 and OpenVSwitch vlan mapping range to support. See the
+      Neutron documentation for permitted values. Defaults to permitting any
+      VLAN on the 'datacentre' physical network (See NeutronBridgeMappings).
+    type: string
   NeutronPassword:
     default: unset
     description: The password for the neutron service account, used by neutron agents.
@@ -351,7 +358,8 @@ resources:
         NeutronEnableTunnelling: "True"
         NeutronFlatNetworks:
             get_param: NeutronFlatNetworks
-        NeutronNetworkVLANRanges: ""
+        NeutronNetworkVLANRanges:
+            get_param: NeutronNetworkVLANRanges
         NeutronPhysicalBridge:
             get_param: HypervisorNeutronPhysicalBridge
         NeutronPublicInterface:
@@ -510,6 +518,7 @@ resources:
             enable_tunneling: 'True'
             local_ip:
               get_input: controller_host
+            network_vlan_ranges: {get_param: NeutronNetworkVLANRanges}
             bridge_mappings: {get_param: NeutronBridgeMappings}
             public_interface:
               get_param: NeutronPublicInterface