diff --git a/machines/forms.py b/machines/forms.py
index 49150349..c0af0bd6 100644
--- a/machines/forms.py
+++ b/machines/forms.py
@@ -217,10 +217,7 @@ class IpTypeForm(FormRevMixin, ModelForm):
     stop après creation"""
     class Meta:
         model = IpType
-        fields = ['type', 'extension', 'need_infra', 'domaine_ip_start',
-                  'domaine_ip_stop', 'dnssec_reverse_v4', 'prefix_v6',
-                  'prefix_v6_length','dnssec_reverse_v6', 'vlan',
-                  'ouverture_ports']
+        fields = '__all__'
 
     def __init__(self, *args, **kwargs):
         prefix = kwargs.pop('prefix', self.Meta.model.__name__)
@@ -232,7 +229,8 @@ class EditIpTypeForm(IpTypeForm):
     """Edition d'un iptype. Pas d'edition du rangev4 possible, car il faudrait
     synchroniser les objets iplist"""
     class Meta(IpTypeForm.Meta):
-        fields = ['extension', 'type', 'need_infra', 'prefix_v6', 'prefix_v6_length',
+        fields = ['extension', 'type', 'need_infra', 'domaine_ip_network', 'domaine_ip_netmask',
+                  'prefix_v6', 'prefix_v6_length',
                   'vlan', 'dnssec_reverse_v4', 'dnssec_reverse_v6',
                   'ouverture_ports']
 
diff --git a/machines/migrations/0091_auto_20180806_2310.py b/machines/migrations/0091_auto_20180806_2310.py
new file mode 100644
index 00000000..cd756cad
--- /dev/null
+++ b/machines/migrations/0091_auto_20180806_2310.py
@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.7 on 2018-08-06 21:10
+from __future__ import unicode_literals
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('machines', '0090_auto_20180805_1459'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='iptype',
+            name='domaine_ip_netmask',
+            field=models.IntegerField(default=24, help_text='Netmask for the ipv4 range domain', validators=[django.core.validators.MaxValueValidator(31), django.core.validators.MinValueValidator(8)]),
+        ),
+        migrations.AddField(
+            model_name='iptype',
+            name='domaine_ip_network',
+            field=models.GenericIPAddressField(blank=True, help_text='Network containing the ipv4 range domain ip start/stop. Optional', null=True, protocol='IPv4'),
+        ),
+    ]
diff --git a/machines/models.py b/machines/models.py
index 1f8cbc0b..34f91adf 100644
--- a/machines/models.py
+++ b/machines/models.py
@@ -278,6 +278,20 @@ class IpType(RevMixin, AclMixin, models.Model):
     need_infra = models.BooleanField(default=False)
     domaine_ip_start = models.GenericIPAddressField(protocol='IPv4')
     domaine_ip_stop = models.GenericIPAddressField(protocol='IPv4')
+    domaine_ip_network = models.GenericIPAddressField(
+        protocol='IPv4',
+        null=True,
+        blank=True,
+        help_text="Network containing the ipv4 range domain ip start/stop. Optional"
+    )
+    domaine_ip_netmask = models.IntegerField(
+        default=24,
+        validators=[
+            MaxValueValidator(31),
+            MinValueValidator(8)
+        ],
+        help_text="Netmask for the ipv4 range domain"
+    )
     dnssec_reverse_v4 = models.BooleanField(
             default=False, 
             help_text="Activer DNSSEC sur le reverse DNS IPv4",
@@ -331,6 +345,11 @@ class IpType(RevMixin, AclMixin, models.Model):
         """ Renvoie une liste des ip en string"""
         return [str(x) for x in self.ip_set]
 
+    @cached_property
+    def ip_set_cidrs_as_str(self):
+        """Renvoie la liste des cidrs du range en str"""
+        return [str(ip_range) for ip_range in self.ip_set.iter_cidrs()]
+
     @cached_property
     def ip_set_full_info(self):
         """Iter sur les range cidr, et renvoie network, broacast , etc"""
@@ -358,6 +377,24 @@ class IpType(RevMixin, AclMixin, models.Model):
         else:
             return None
 
+    @cached_property
+    def ip_network(self):
+        """Renvoie le network parent du range start-stop, si spécifié
+        Différent de ip_set_cidrs ou iP_set, car lui est supérieur ou égal"""
+        if self.domaine_ip_network:
+            return IPNetwork(str(self.domaine_ip_network) + '/' + str(self.domaine_ip_netmask))
+        return None
+
+    @cached_property
+    def ip_net_full_info(self):
+        """Renvoie les infos du network contenant du range"""
+        return {
+            'network' : str(self.ip_network.network),
+            'netmask' : str(self.ip_network.netmask),
+            'broadcast' : str(self.ip_network.broadcast),
+            'netmask_cidr' : str(self.ip_network.prefixlen),
+        }
+
     @cached_property
     def complete_prefixv6(self):
         """Return the complete prefix v6 as cidr"""
@@ -442,6 +479,11 @@ class IpType(RevMixin, AclMixin, models.Model):
         # On formate le prefix v6
         if self.prefix_v6:
             self.prefix_v6 = str(IPNetwork(self.prefix_v6 + '/64').network)
+        # On vérifie qu'un domaine network/netmask contiens bien le domaine ip start-stop
+        if self.domaine_ip_network:
+            if not self.domaine_ip_start in self.ip_network or not self.domaine_ip_stop in self.ip_network:
+                raise ValidationError("If you specify a domaine ip network/netmask, it\
+                    must contain domaine ipstart-stop range")
         return
 
     def save(self, *args, **kwargs):
diff --git a/machines/templates/machines/aff_iptype.html b/machines/templates/machines/aff_iptype.html
index 7d4de6c5..ccb70a14 100644
--- a/machines/templates/machines/aff_iptype.html
+++ b/machines/templates/machines/aff_iptype.html
@@ -46,7 +46,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
             <td>{{ type.type }}</td>
             <td>{{ type.extension }}</td>
             <td>{{ type.need_infra|tick }}</td>
-	    <td>{{ type.domaine_ip_start }}-{{ type.domaine_ip_stop }}</td>
+	    <td>{{ type.domaine_ip_start }}-{{ type.domaine_ip_stop }}{% if type.ip_network %}<b><u> on </b></u>{{ type.ip_network }}{% endif %}</td>
             <td>{{ type.prefix_v6 }}/{{ type.prefix_v6_length }}</td>
 	    <td>{{ type.dnssec_reverse_v4|tick }}/{{ type.dnssec_reverse_v6|tick }}</td>
             <td>{{ type.vlan }}</td>