diff --git a/gestion/gen_confs/firewall.py b/gestion/gen_confs/firewall.py
index 208013a7..27f34eef 100755
--- a/gestion/gen_confs/firewall.py
+++ b/gestion/gen_confs/firewall.py
@@ -601,6 +601,7 @@ class firewall_komaz(firewall_crans) :
 
         iptables("-t nat -P PREROUTING ACCEPT")
         iptables("-t nat -A PREROUTING -i lo -j ACCEPT")
+        iptables("-t nat -A PREROUTING -i tun-ovh -j ACCEPT")
         iptables("-t nat -A PREROUTING -d 224.0.0.0/4 -j DROP")
         iptables("-t nat -A PREROUTING -s ! %s -j TEST_VIRUS_FLOOD" % self.zone_serveur)
         iptables("-t nat -A PREROUTING -j RESEAUX_NON_ROUTABLES_DST")