diff --git a/gestion/gen_confs/filtrage.py b/gestion/gen_confs/filtrage.py
new file mode 100644
index 00000000..a92a3240
--- /dev/null
+++ b/gestion/gen_confs/filtrage.py
@@ -0,0 +1,92 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Classe de synchronisation entre la base ldap et
+la base postgresql pour la liste des exemptions
+et la liste des machines.
+Utilisé par generate.py
+"""
+
+# importation des fonctions et classes
+
+import sys
+if '/usr/scripts' not in sys.path:
+    sys.path.insert(0, '/usr/scripts/')
+import lc_ldap.shortcuts
+import lc_ldap.objets
+from gestion.gen_confs import gen_config
+import psycopg2
+
+ldap_conn = lc_ldap.shortcuts.lc_ldap.readonly()
+
+# Génération des la tables d'exemptions
+#######################################
+
+class exemptions(gen_config):
+
+    base = [('138.231.136.0/24', '0.0.0.0/0'), ('138.231.136.0/21', '138.231.0.0/16'), ('138.231.144.0/21', '138.231.0.0/16')]
+    restart_cmd = ""
+
+    def __str__(self):
+        return "surveillance_exemptions"
+
+    def _gen(self):
+        machines = ldap_conn.search(u'(exempt=*)')
+        pgsql = psycopg2.connect(database='filtrage', user='crans')
+        curseur = pgsql.cursor()
+
+        # Purge.
+        requete = "DELETE FROM exemptes"
+        curseur.execute(requete)
+
+        for source, destination in self.base:
+            requete = "INSERT INTO exemptes (ip_crans, ip_dest) VALUES ('%s','%s')" % (source, destination)
+            curseur.execute(requete)
+
+        for machine in machines:
+            for destination in machine["exempt"]:
+                if destination.value.version == 4:
+                    source = str(machine["ipHostNumber"][0])
+                    requete = "INSERT INTO exemptes (ip_crans, ip_dest) VALUES ('%s','%s')" % (source, destination)
+                else:
+                    source = str(machine["macAddress"][0])
+                    requete = "INSERT INTO exemptes6 (mac_crans, ip_dest) VALUES ('%s','%s')" % (source, destination)
+                # Si ip vide, passons au suivant
+                if not source:
+                    continue
+                curseur.execute(requete)
+
+        pgsql.commit()
+
+# Génération des la liste des machines
+######################################
+
+class machines(gen_config):
+    restart_cmd = ""
+    def __str__(self):
+        return "surveillance_liste_machines"
+
+    def _gen(self):
+        machines = ldap_conn.search(u"(ipHostNumber=*)")['machine']
+
+        # liste des machines (on prend que les paimement ok)
+        # machines = self.machines
+        # machines = db.search('ip=*')['machine']
+
+        # connexion à la base postgresql
+        pgsql = psycopg2.connect(database='filtrage', user='crans')
+        curseur = pgsql.cursor()
+        curseur.execute("DELETE FROM machines;")
+
+        # ajout des entrée
+        for m in machines:
+            if m.proprio().__class__ == lc_ldap.objets.club:
+                curseur.execute("INSERT INTO machines (mac_addr, type, id) VALUES ('%s','club',%s);" % (m['macAddress'][0], m.proprio()['cid'][0].value))
+            elif m.proprio().__class__ == lc_ldap.objets.adherent:
+                curseur.execute("INSERT INTO machines (mac_addr, type, id) VALUES ('%s','adherent',%s);" % (m['macAddress'], m.proprio()['cid'][0].value))
+            elif m.proprio().__class__ == lc_ldap.objets.AssociationCrans:
+                curseur.execute("INSERT INTO machines (mac_addr, type, id) VALUES ('%s','crans',%s);" % (m['macAddress'], m['mid'][0].value))
+        # on commit
+        pgsql.commit()
+
diff --git a/gestion/gen_confs/generate.py b/gestion/gen_confs/generate.py
index 74f3783d..cc0d8cc2 100755
--- a/gestion/gen_confs/generate.py
+++ b/gestion/gen_confs/generate.py
@@ -212,6 +212,15 @@ class thot(base_reconfigure):
         from gen_confs.surveillance import machines
         self._do(machines(), self._machines())
 
+class odlyd(base_reconfigure):
+    def filtrage_exemptions(self):
+        from gen_confs.filtrage import exemptions
+        self._do(exemptions())
+
+    def filtrage_machines(self):
+        from gen_confs.filtrage import machines
+        self._do(machines(), self._machines())
+
 class zamok(base_reconfigure):
     def del_user(self, args):
         # Suppression des fichies d'impression