diff --git a/gestion/gen_confs/bind.py b/gestion/gen_confs/bind.py
index 884c86e5..6550ae5a 100644
--- a/gestion/gen_confs/bind.py
+++ b/gestion/gen_confs/bind.py
@@ -111,12 +111,17 @@ zone "%(NOM_zone)s" {
         for net in self.zones_reverse :
             n = map(int,net.split('/')[0].split('.')[:3])
             while 1 :
-                if not AddrInNet("%d.%d.%d.1" % tuple(n),net):
+                try:
+                    innet = AddrInNet("%d.%d.%d.1" % tuple(n),net)
+                except ValueError:
                     break
-                else :
-                    n.reverse()
-                    zones.append("%d.%d.%d.in-addr.arpa" % tuple(n))
-                    n.reverse()
+                else:
+                    if not innet:
+                        break
+                    else :
+                        n.reverse()
+                        zones.append("%d.%d.%d.in-addr.arpa" % tuple(n))
+                        n.reverse()
                 n[2] += 1
 
         # Ecriture
diff --git a/gestion/gen_confs/dhcpd_new.py b/gestion/gen_confs/dhcpd_new.py
index 3e0d7d84..5638cb49 100755
--- a/gestion/gen_confs/dhcpd_new.py
+++ b/gestion/gen_confs/dhcpd_new.py
@@ -31,7 +31,7 @@ class dhcp(gen_config) :
         reseaux = { '10.2.9.0/24' : '/etc/dhcp3/generated/appartements.liste' }
     elif hostname == 'dyson':
         restart_cmd = '/etc/init.d/dhcp3-server restart'
-        reseaux = { NETs['adh-g'][0] : '/etc/dhcp3/generate/adh-g.liste' }
+        reseaux = { NETs['adh-g'][0] : '/etc/dhcp3/generated/adh-g.liste' }
     elif hostname == 'gordon':
         restart_cmd = '/etc/init.d/dhcp3-server restart'
         reseaux = { '138.231.144.0/21' : '/etc/dhcp3/generated/wifi.liste' }
@@ -77,6 +77,8 @@ class dhcp(gen_config) :
         for machine in self.machines :
             self.anim.cycle()
             for net in self.reseaux.keys() :
+                ip = machine.ip()
+                if '.151.' in ip: print ip
                 if AddrInNet(machine.ip(), net) :
                     host_template = self.host_template
                     # variable pour remplir le template
diff --git a/gestion/gen_confs/generate.py b/gestion/gen_confs/generate.py
index 2cff5260..8a553336 100644
--- a/gestion/gen_confs/generate.py
+++ b/gestion/gen_confs/generate.py
@@ -222,7 +222,7 @@ class komaz(base_reconfigure):
 
 class dyson(base_reconfigure):
     def dhcp(self):
-        from gen_confs.dhcp_new import dhcp
+        from gen_confs.dhcpd_new import dhcp
         self._do(dhcp(), self._machines())
 
 class sable(base_reconfigure):
diff --git a/gestion/gen_confs/switchs.py b/gestion/gen_confs/switchs.py
index f64cf43e..2ca401ca 100644
--- a/gestion/gen_confs/switchs.py
+++ b/gestion/gen_confs/switchs.py
@@ -259,6 +259,10 @@ exit
         # Batiment et numéro du switch
         bat = switch[3].lower()
         sw_num = int(switch[5])
+        dhcp_server = self.dhcp_server
+        # Au bâtiment G, on utilise un autre serveur DHCP
+        if bat == 'g':
+            dhcp_server = '138.231.151.1'
         # Conf radius
         sys.path.append('/usr/scripts/gestion/secrets')
         from secrets import radius_key
@@ -271,7 +275,7 @@ exit
         params = { 'switch' : switch, 'bat' : bat.upper() ,
                    'radius_key' : radius_key ,
                    'radius-serveurs' : rad[:-1] % tuple(self.rad_servs),
-                   'dhcp': self.dhcp_server}
+                   'dhcp': dhcp_server}
 
         self.aff.cycle()
 
diff --git a/gestion/ldap_crans.py b/gestion/ldap_crans.py
index 19ad8fda..83289609 100644
--- a/gestion/ldap_crans.py
+++ b/gestion/ldap_crans.py
@@ -1728,6 +1728,7 @@ class BaseProprietaire(BaseClasseCrans):
                         self.services_to_restart('ragnarok-dhcp')
                     else:
                         self.services_to_restart('sable-dhcp')
+                        self.services_to_restart('dyson-dhcp')
                         # TODO : le rendre plus propre
                         self.services_to_restart('titanic-dhcp')