@@ -238,7 +238,10 @@ function configure_tempest {

     ssh_connect_method=${TEMPEST_SSH_CONNECT_METHOD:-$ssh_connect_method}

-    if is_service_enabled q-l3; then

+    # the public network (for floating ip access) is only available

+    # if the extension is enabled.

+    EXTERNAL_NETWORK_EXT=$(neutron ext-list | grep 'external-net' | get_field 1)

+    if [[ -n $EXTERNAL_NETWORK_EXT ]]; then

         public_network_id=$(neutron net-list | grep $PUBLIC_NETWORK_NAME | \

             awk '{print $2}')

     fi