diff --git a/doc/source/deploy/environment-index.rst b/doc/source/deploy/environment-index.rst
index fc632fd..eca7616 100644
--- a/doc/source/deploy/environment-index.rst
+++ b/doc/source/deploy/environment-index.rst
@@ -127,6 +127,16 @@ Deploy a Basic OVB Environment Using Neutron port-security
 allow OVB functionality in clouds with security groups enabled.
 
 
+Public Network External Router
+------------------------------
+
+**File:** environments/public-router.yaml
+
+**Description:** Deploy a router that connects the public and external networks. This
+allows the public network to be used as a gateway instead of routing all
+traffic through the undercloud.
+
+
 Disable the Undercloud in a QuintupleO Stack
 --------------------------------------------
 
diff --git a/environments/public-router.yaml b/environments/public-router.yaml
new file mode 100644
index 0000000..1879222
--- /dev/null
+++ b/environments/public-router.yaml
@@ -0,0 +1,13 @@
+# *******************************************************************
+# This file was created automatically by the sample environment
+# generator. Developers should use `tox -e genconfig` to update it.
+# Users are recommended to make changes to a copy of the file instead
+# of the original, if any customizations are needed.
+# *******************************************************************
+# title: Public Network External Router
+# description: |
+#   Deploy a router that connects the public and external networks. This
+#   allows the public network to be used as a gateway instead of routing all
+#   traffic through the undercloud.
+resource_registry:
+  OS::OVB::UndercloudNetworks: ../templates/undercloud-networks-public-router.yaml
diff --git a/sample-env-generator/environments.yaml b/sample-env-generator/environments.yaml
index ca5c145..80086f7 100644
--- a/sample-env-generator/environments.yaml
+++ b/sample-env-generator/environments.yaml
@@ -277,4 +277,13 @@ environments:
       overcloud_storage_net: overcloud_storage2
       overcloud_storage_mgmt_net: overcloud_storage_mgmt2
       overcloud_tenant_net: overcloud_tenant2
+  -
+    name: public-router
+    title: Public Network External Router
+    description: |
+      Deploy a router that connects the public and external networks. This
+      allows the public network to be used as a gateway instead of routing all
+      traffic through the undercloud.
+    resource_registry:
+      OS::OVB::UndercloudNetworks: ../templates/undercloud-networks-public-router.yaml