diff --git a/gestion/gen_confs/dhcpd.py b/gestion/gen_confs/dhcpd.py
index 30227afd..54138403 100755
--- a/gestion/gen_confs/dhcpd.py
+++ b/gestion/gen_confs/dhcpd.py
@@ -101,6 +101,28 @@ subnet %(network)s netmask %(netmask)s {
         option host-name "%(nom)s";
     }
 """
+
+    host_template_ltsp_i386="""
+    host %(nom)s {
+        hardware ethernet %(mac)s;
+        fixed-address %(ip)s;
+        option host-name "%(nom)s";
+        next-server 138.231.136.19;
+        filename "/ltsp/pxelinux.0";
+        option root-path "/opt/ltsp/i386";
+}
+"""
+
+    host_template_ltsp_powerpc="""
+    host %(nom)s {
+        hardware ethernet %(mac)s;
+        fixed-address %(ip)s;
+        option host-name "%(nom)s";
+        next-server 138.231.136.19;
+        filename "yaboot";
+        option root-path "/opt/ltsp/powerpc";
+    }
+"""
             
     ### Verbosité 
     # Si =1 ralera (chaine warnings) si machines hors zone trouvée
@@ -133,9 +155,17 @@ subnet %(network)s netmask %(netmask)s {
             t = 0
             for net in self.reseaux.keys() :
                 if AddrInNet(machine.ip(),net) :
+                    # choix du template en fonction de la machine
+                    if machine.nom() in ['momo.crans.org']:
+                        host_template = self.host_template_ltsp_i386
+                    elif machine.nom() in ['bulle12.crans.org']:
+                        host_template = self.host_template_ltsp_powerpc
+                    else:
+                        host_template = self.host_template
+                    # variable pour remplir le template
                     d = { 'nom' : machine.nom().split('.')[0] , 'mac' : machine.mac() , 'ip' : machine.ip() }
-                    try : hosts[net] += self.host_template % d
-                    except : hosts[net] = self.host_template % d
+                    try : hosts[net] += host_template % d
+                    except : hosts[net] = host_template % d
                     t = 1
         
         ### Ecriture du fichier