diff --git a/gestion/liberation_ip.py b/gestion/liberation_ip.py
new file mode 100755
index 00000000..ad4f2e0c
--- /dev/null
+++ b/gestion/liberation_ip.py
@@ -0,0 +1,32 @@
+#! /usr/bin/env python
+# -*- coding: iso-8859-15 -*-
+
+
+import sys
+sys.path.append('/usr/scripts/gestion')
+import config
+from ldap_crans import crans_ldap, decode
+db = crans_ldap()
+
+annee = config.ann_scol
+
+
+#suppression des machines
+
+adherents = db.search( 'paiement=%d&paiement!=%d' % (annee - 1, annee), 'w' )['adherent']
+for adherent in adherents:
+        print "suppression des machines de: %(nom)s " % {'nom': adherent.Nom()}     
+        machines = adherent.machines()
+        for machine in machines:
+                print "suppression machine: %(nom)s " % {'nom': machine.nom()}     
+                machine.delete('liberation de l\'adresse')
+
+# regeneration du pool d'ip
+
+print "Regeneration du pool d'ip"
+import numeros_disponibles
+
+ip_occupees = numeros_disponibles.lister_ip_utilisees()
+for net in config.NETs.keys():
+    numeros_disponibles.update_ip(net, ip_occupees)
+print "Fini !"