diff --git a/firewall_config.example.py b/firewall_config.example.py
index 29683c8..c3a088e 100644
--- a/firewall_config.example.py
+++ b/firewall_config.example.py
@@ -23,9 +23,11 @@
 
 
 ### Specify each interface role
+role = ['routeur', 'portail']
 
 interfaces_type = {
     'routable' : ['eth1', 'eth2'],
+    'routable-portail': ['eth2'],
     'sortie' : ['eth3', 'eth4'],
     'admin' : ['eth5', 'eth6']
 }
diff --git a/main.py b/main.py
index fa25d04..d589fef 100755
--- a/main.py
+++ b/main.py
@@ -371,7 +371,7 @@ class iptables:
     def capture_connection_portail(self, subtable="PORTAIL-CAPTIF-REDIRECT"):
         """Redirige les connexions 80 et 443 vers l'ip cible"""
         self.init_nat(subtable, decision="-")
-        for interface in self.interfaces_settings['routable']:
+        for interface in self.interfaces_settings['routable-portail']:
             self.jump_traficfrom("nat", interface, "PREROUTING", subtable, mode='4')
 
         for protocol in self.portail_settings['authorized_hosts']: