diff --git a/freeradius_utils/authenticate_filaire.py b/freeradius_utils/authenticate_filaire.py
new file mode 100755
index 00000000..b0cc4fb5
--- /dev/null
+++ b/freeradius_utils/authenticate_filaire.py
@@ -0,0 +1,75 @@
+import os, sys
+
+proj_path = "/var/www/re2o/"
+# This is so Django knows where to find stuff.
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "re2o.settings")
+sys.path.append(proj_path)
+
+# This is so my local_settings.py gets loaded.
+os.chdir(proj_path)
+
+# This is so models get loaded.
+from django.core.wsgi import get_wsgi_application
+application = get_wsgi_application()
+
+import argparse
+
+from machines.models import Interface
+from topologie.models import Room, Port, Switch
+from users.models import User
+
+from re2o.settings import RADIUS_VLAN_DECISION
+
+VLAN_NOK = RADIUS_VLAN_DECISION['VLAN_NOK']
+VLAN_OK = RADIUS_VLAN_DECISION['VLAN_OK']
+
+def decide_vlan(switch_name, port_number, mac_address):
+        # Get port from switch and port number
+        switch = Switch.objects.filter(switch_interface=Interface.objects.filter(dns=switch_name))
+        if switch:
+            port = Port.objects.filter(switch=switch[0], port=port_number)
+            if port:
+                port = port[0]
+                if port.radius == 'NO':
+                # Aucune authentification sur ce port
+                    decision = ("Pas d'authentification sur ce port", VLAN_OK)
+                elif port.radius == 'BLOQ':
+                # Prise désactivée
+                    decision = ('Port desactive', VLAN_NOK)
+                elif port.radius == 'COMMON' or port.radius == 'STRICT':
+		    # Authentification par mac
+                    interface = Interface.objects.filter(mac_address=mac_address)
+                    if not interface:
+                        decision = ('Mac not found', VLAN_NOK)
+                    elif interface[0].is_active():
+                        # Verification de la prise
+                        if port.radius == 'STRICT':
+                            if port.room:
+                                user = User.objects.filter(room=Room.objects.filter(name=port.room))
+                                if not user:
+                                    decision = ('Chambre non cotisante', VLAN_NOK)
+                                elif user[0].has_access():
+                                    decision = ('Machine OK, Proprio OK', VLAN_OK)
+                            else:
+                                decision = ('Chambre inconnue', VLAN_NOK)
+                        else:
+                            # Mode COMMON
+                            decision = ('Machine OK', VLAN_OK)
+                    else:
+                        decision = ('Machine non active / adherent non cotisant', VLAN_NOK)
+                else:
+                    decision = ('VLAN forced', int(port.radius))
+            else:
+                decision = ('port not found!', VLAN_OK)
+        else:
+            decision = ('switch not found!', VLAN_OK)
+        return decision
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description='Decide radius vlan attribution')
+    parser.add_argument('switch_name', action="store")
+    parser.add_argument('port_number', action="store", type=int)
+    parser.add_argument('mac_address', action="store")
+    args = parser.parse_args()
+    print(decide_vlan(args.switch_name, args.port_number, args.mac_address))
+