diff --git a/gestion/gen_confs/firewall.py b/gestion/gen_confs/firewall.py
index b959b8c4..c3c55192 100755
--- a/gestion/gen_confs/firewall.py
+++ b/gestion/gen_confs/firewall.py
@@ -869,7 +869,7 @@ class firewall_vert(firewall_crans) :
     """
  
     # interfaces physiques
-    eth_pub = "eth0"
+    eth_crans = "crans"
 
     def nat_table(self) :
         self.anim = anim('\tStructure de la table nat')