diff --git a/plugins/router/bbox b/plugins/router/bbox
index 0ae62a18..bec42a8e 100755
--- a/plugins/router/bbox
+++ b/plugins/router/bbox
@@ -1,11 +1,30 @@
 #! /bin/sh
-# Parse bbox information - https://fr.wikipedia.org/wiki/Bbox
-# (c) 2018 - GPLv2 - Steve Schnepp <steve.schnepp@pwkf.org>
-#
-# Configuration is done via ENV vars, here is the default :
-#
-# [bbox]
-# env.IP 192.168.1.254
+
+: <<=cut
+
+=head1 NAME
+
+bbox - parse bbox information - https://fr.wikipedia.org/wiki/Bbox
+
+=head1 CONFIGURATION
+
+The following default configuration is used:
+
+ [bbox]
+ env.IP 192.168.1.254
+
+=head1 AUTHORS
+
+Copyright (C) 2018 Steve Schnepp <steve.schnepp@pwkf.org>
+
+
+=head1 LICENSE
+
+GNU Library General Public License v2 only
+
+SPDX-License-Identifier: GPL-2.0-only
+
+=cut
 
 
 # fail on error