diff --git a/surveillance/collisions_ipv6.py b/surveillance/collisions_ipv6.py
new file mode 100755
index 00000000..58af3f3f
--- /dev/null
+++ b/surveillance/collisions_ipv6.py
@@ -0,0 +1,23 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+""" Pour détecter et signaler les collisions d'adresses IPv6 """
+
+import psycopg2
+
+# Connection à la base sql via pgsql
+pgsql = psycopg2.connect(database='filtrage', user='crans')
+# Il faudra remplacer la ligne ci-dessous par pgsql.set_session(autocommit = True) sous wheezy
+pgsql.set_isolation_level(0)
+curseur = pgsql.cursor()
+
+# On regarde s'il y a deux ipv6 identiques avec des mac non identiques
+collision_mac_ip_request = "SELECT DISTINCT a.date as date1, a.mac as mac1, a.ip as ip1, b.date as date2, b.mac as mac2, b.ip as ip2 FROM mac_ip as a, mac_ip as b where a.ip=b.ip AND a.mac != b.mac AND a.date >= b.date AND a.date - b.date < interval '3 day' ORDER BY a.date;"
+curseur.execute(collision_mac_ip_request)
+collision_mac_ip = curseur.fetchall()
+
+if collision_mac_ip != []:
+    print "Collision d'addresses ipv6 : "
+for (date1, mac1, ip1, date2, mac2, ip2) in collision_mac_ip:
+    print "%s %s %s" % (date1, ipt.mac_addr(mac1), ip1)
+    print "%s %s %s" % (date2, ipt.mac_addr(mac2), ip2)
diff --git a/surveillance/deconnexion.py b/surveillance/deconnexion.py
index ffe3eb61..9b069cbc 100755
--- a/surveillance/deconnexion.py
+++ b/surveillance/deconnexion.py
@@ -166,16 +166,6 @@ curseur.execute(requete)
 uploadeurs = curseur.fetchall()
 
 
-# On regarde s'il y a deux ipv6 identiques avec des mac non identiques
-collision_mac_ip_request = "SELECT DISTINCT a.date as date1, a.mac as mac1, a.ip as ip1, b.date as date2, b.mac as mac2, b.ip as ip2 FROM mac_ip as a, mac_ip as b where a.ip=b.ip AND a.mac != b.mac AND a.date >= b.date AND a.date - b.date < interval '3 day' ORDER BY a.date;"
-curseur.execute(collision_mac_ip_request)
-collision_mac_ip = curseur.fetchall()
-
-if collision_mac_ip != []:
-    print "Collision d'addresses ipv6 : "
-for (date1, mac1, ip1, date2, mac2, ip2) in collision_mac_ip:
-    print "%s %s %s" % (date1, ipt.mac_addr(mac1), ip1)
-    print "%s %s %s" % (date2, ipt.mac_addr(mac2), ip2)
 
 # Table des avertis
 ###################