diff --git a/environments/base.yaml b/environments/base.yaml
index 632d000..6980e72 100644
--- a/environments/base.yaml
+++ b/environments/base.yaml
@@ -61,6 +61,18 @@ parameter_defaults:
   # Type: string
   public_net: public
 
+  # Allocation Pools for the public network
+  # Type: json
+  public_net_allocation_pools: []
+
+  # CIDR for external network subnet
+  # Type: string
+  public_net_cidr: 10.0.0.0/24
+
+  # IP version for the public subnet
+  # Type: number
+  public_net_ip_version: 4
+
   # Whether this network should be shared across all tenants
   # Type: boolean
   public_net_shared: False
diff --git a/sample-env-generator/environments.yaml b/sample-env-generator/environments.yaml
index b9cbb07..bd1851c 100644
--- a/sample-env-generator/environments.yaml
+++ b/sample-env-generator/environments.yaml
@@ -15,6 +15,9 @@ environments:
           - baremetal_prefix
           - node_count
           - public_net
+          - public_net_cidr
+          - public_net_allocation_pools
+          - public_net_ip_version
           - public_net_shared
           - provision_net
           - provision_net_shared
diff --git a/templates/quintupleo.yaml b/templates/quintupleo.yaml
index d77ad39..f723c95 100644
--- a/templates/quintupleo.yaml
+++ b/templates/quintupleo.yaml
@@ -69,6 +69,11 @@ parameters:
     description: Name of the overcloud external network
     default: public
 
+  public_net_allocation_pools:
+    type: json
+    description: Allocation Pools for the public network
+    default: []
+
   public_net_cidr:
     type: string
     description: CIDR for external network subnet
@@ -200,6 +205,7 @@ resources:
       network: {get_resource: public_network}
       name: {get_param: public_net}
       cidr: {get_param: public_net_cidr}
+      allocation_pools: {get_param: public_net_allocation_pools}
       gateway_ip: null
       enable_dhcp: false