diff --git a/builtin/providers/openstack/resource_openstack_networking_port_v2.go b/builtin/providers/openstack/resource_openstack_networking_port_v2.go
index 987e1025e..4870f2877 100644
--- a/builtin/providers/openstack/resource_openstack_networking_port_v2.go
+++ b/builtin/providers/openstack/resource_openstack_networking_port_v2.go
@@ -89,7 +89,7 @@ func resourceNetworkingPortV2() *schema.Resource {
 						},
 						"ip_address": &schema.Schema{
 							Type:     schema.TypeString,
-							Required: true,
+							Optional: true,
 						},
 					},
 				},
diff --git a/website/source/docs/providers/openstack/r/networking_port_v2.html.markdown b/website/source/docs/providers/openstack/r/networking_port_v2.html.markdown
index 3e5998c94..45ae14c5d 100644
--- a/website/source/docs/providers/openstack/r/networking_port_v2.html.markdown
+++ b/website/source/docs/providers/openstack/r/networking_port_v2.html.markdown
@@ -69,8 +69,9 @@ The `fixed_ip` block supports:
 * `subnet_id` - (Required) Subnet in which to allocate IP address for
 this port.
 
-* `ip_address` - (Required) IP address desired in the subnet for this
-port.
+* `ip_address` - (Optional) IP address desired in the subnet for this
+port. If you don't specify `ip_address`, OpenStack will be allocated an available
+IP address to this port.
 
 ## Attributes Reference