diff --git a/machines/forms.py b/machines/forms.py
index afe781f1..a611fa98 100644
--- a/machines/forms.py
+++ b/machines/forms.py
@@ -230,9 +230,10 @@ class DelVlanForm(Form):
     vlan = forms.ModelMultipleChoiceField(queryset=Vlan.objects.all(), label="Vlan actuels",  widget=forms.CheckboxSelectMultiple)
 
 class EditPortListForm(ModelForm):
-    tcp_ports = forms.CharField(required=False, label="Ports TCP")
-    udp_ports = forms.CharField(required=False, label="Ports UDP")
-    # interfaces = forms.ModelMultipleChoiceField(queryset=Interface.objects.filter(Q(has_public_ip=True)), label="Interface", widget=forms.CheckboxSelectMultiple)
+    tcp_ports_in = forms.CharField(required=False, label="Ports TCP (entrée)")
+    udp_ports_in = forms.CharField(required=False, label="Ports UDP (entrée)")
+    tcp_ports_out = forms.CharField(required=False, label="Ports TCP (sortie)")
+    udp_ports_out = forms.CharField(required=False, label="Ports UDP (sortie)")
     class Meta:
         model = PortList
         fields = ['name']
diff --git a/machines/migrations/0060_port_io.py b/machines/migrations/0060_port_io.py
new file mode 100644
index 00000000..0d890b56
--- /dev/null
+++ b/machines/migrations/0060_port_io.py
@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.7 on 2017-10-01 09:30
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('machines', '0059_port_protocole'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='port',
+            name='io',
+            field=models.CharField(choices=[('I', 'IN'), ('O', 'OUT')], default='O', max_length=1),
+        ),
+    ]
diff --git a/machines/models.py b/machines/models.py
index 91e16ab9..949d9608 100644
--- a/machines/models.py
+++ b/machines/models.py
@@ -417,11 +417,18 @@ class PortList(models.Model):
     def __str__(self):
         return ', '.join(map(str, self.port_set.all()))
 
-    def tcp_ports(self):
-        return self.port_set.filter(protocole=Port.TCP)
+    def tcp_ports_in(self):
+        return self.port_set.filter(protocole=Port.TCP, io=Port.IN)
     
-    def udp_ports(self):
-        return self.port_set.filter(protocole=Port.UDP)
+    def udp_ports_in(self):
+        return self.port_set.filter(protocole=Port.UDP, io=Port.IN)
+
+    def tcp_ports_out(self):
+        return self.port_set.filter(protocole=Port.TCP, io=Port.OUT)
+    
+    def udp_ports_out(self):
+        return self.port_set.filter(protocole=Port.UDP, io=Port.OUT)
+
 
 class Port(models.Model):
     """
@@ -432,6 +439,8 @@ class Port(models.Model):
     """
     TCP = 'T'
     UDP = 'U'
+    IN = 'I'
+    OUT = 'O'
     begin = models.IntegerField()
     end = models.IntegerField()
     port_list = models.ForeignKey('PortList', on_delete=models.CASCADE)
@@ -443,6 +452,14 @@ class Port(models.Model):
                 ),
             default=TCP,
     )
+    io = models.CharField(
+            max_length=1,
+            choices=(
+                (IN, 'IN'),
+                (OUT, 'OUT'),
+                ),
+            default=OUT,
+    )
 
     def __str__(self):
         if self.begin == self.end :
diff --git a/machines/templates/machines/index_portlist.html b/machines/templates/machines/index_portlist.html
index ce48e249..81847af1 100644
--- a/machines/templates/machines/index_portlist.html
+++ b/machines/templates/machines/index_portlist.html
@@ -11,16 +11,20 @@
     <thead>
       <tr>
 	<th>Nom</th>
-	<th>TCP</th>
-	<th>UDP</th>
+	<th>TCP (entrée)</th>
+	<th>TCP (sortie)</th>
+	<th>UDP (entrée)</th>
+	<th>UDP (sortie)</th>
 	<th></th>
       </tr>
     </thead>
     {% for pl in port_list %}
     <tr>
       <td>{{pl.name}}</td>
-      <td>{% for p in pl.tcp_ports%}{{p.show_port}}, {%endfor%}</td>
-      <td>{% for p in pl.udp_ports%}{{p.show_port}}, {%endfor%}</td>
+      <td>{% for p in pl.tcp_ports_in %}{{p.show_port}}, {%endfor%}</td>
+      <td>{% for p in pl.tcp_ports_out %}{{p.show_port}}, {%endfor%}</td>
+      <td>{% for p in pl.udp_ports_in %}{{p.show_port}}, {%endfor%}</td>
+      <td>{% for p in pl.udp_ports_out %}{{p.show_port}}, {%endfor%}</td>
 	<td class="text-right">
 	  {%comment%}
 	  {% include 'buttons/suppr.html' href='machines:del-portlist' id=pl.id %}