diff --git a/machines/migrations/0058_auto_20170928_1711.py b/machines/migrations/0058_auto_20170928_1711.py
new file mode 100644
index 00000000..41224de1
--- /dev/null
+++ b/machines/migrations/0058_auto_20170928_1711.py
@@ -0,0 +1,37 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.7 on 2017-09-28 15:11
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('machines', '0057_nas_autocapture_mac'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Port',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('begin', models.IntegerField()),
+                ('end', models.IntegerField()),
+            ],
+        ),
+        migrations.CreateModel(
+            name='PortList',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(help_text='Nom de la configuration des ports.', max_length=255)),
+                ('interfaces', models.ManyToManyField(to='machines.Interface')),
+            ],
+        ),
+        migrations.AddField(
+            model_name='port',
+            name='port_list',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='machines.PortList'),
+        ),
+    ]
diff --git a/machines/migrations/0059_port_protocole.py b/machines/migrations/0059_port_protocole.py
new file mode 100644
index 00000000..fc43bdb0
--- /dev/null
+++ b/machines/migrations/0059_port_protocole.py
@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.7 on 2017-09-28 16:03
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('machines', '0058_auto_20170928_1711'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='port',
+            name='protocole',
+            field=models.CharField(choices=[('T', 'TCP'), ('U', 'UDP')], default='T', max_length=1),
+        ),
+    ]
diff --git a/machines/models.py b/machines/models.py
index 8eff89fc..4dc0e3ad 100644
--- a/machines/models.py
+++ b/machines/models.py
@@ -406,6 +406,43 @@ class Service_link(models.Model):
     def __str__(self):
         return str(self.server) + " " + str(self.service)
 
+
+class PortList(models.Model):
+    """Liste des ports ouverts sur une interface."""
+    interfaces = models.ManyToManyField('Interface')
+    name = models.CharField(help_text="Nom de la configuration des ports.", max_length=255)
+
+    def __str__(self):
+        return ', '.join(map(str, self.port_set.all()))
+
+class Port(models.Model):
+    """
+    Représente un simple port ou une plage de ports.
+    
+    Les ports de la plage sont compris entre begin et en inclus. 
+    Si begin == end alors on ne représente qu'un seul port.
+    """
+    TCP = 'T'
+    UDP = 'U'
+    begin = models.IntegerField()
+    end = models.IntegerField()
+    port_list = models.ForeignKey('PortList', on_delete=models.CASCADE)
+    protocole = models.CharField(
+            max_length=1,
+            choices=(
+                (TCP, 'TCP'),
+                (UDP, 'UDP'),
+                ),
+            default=TCP,
+    )
+
+    def __str__(self):
+        beg = self.protocole + ' : '
+        if self.begin == self.end :
+            return beg + str(self.begin)
+        return beg + '-'.join([str(self.begin), str(self.end)])
+
+
 @receiver(post_save, sender=Machine)
 def machine_post_save(sender, **kwargs):
     user = kwargs['instance'].user