diff --git a/gestion/gen_confs/firewall6.py b/gestion/gen_confs/firewall6.py
index 58169ed3..a53c18fd 100755
--- a/gestion/gen_confs/firewall6.py
+++ b/gestion/gen_confs/firewall6.py
@@ -64,6 +64,10 @@ def ports(dev_ip6, dev_list):
 #    dev_ip6)
 #    ip6tables.filter.forward('-i %s -p tcp --dport ssh -m state --state NEW \
 #-j ACCEPT' % dev_ip6)
+
+    # Ipv6 sur évènementiel, on ne laisse sortir que si ça vient de la mac d'ytrap-llatsni
+    ip6tables.filter.forward('-d 2a01:240:fe3d:d2::/64 -j ACCEPT')
+    ip6tables.filter.forward('-m mac --mac-source 00:00:6c:69:69:01 -s 2a01:240:fe3d:d2::/64 -j ACCEPT')
     for proto in open_ports.keys():
         ip6tables.filter.forward('-i %s -p %s -m multiport --dports %s -j ACCEPT' % (dev_ip6, proto, open_ports[proto]))
     for type_machine in ['fil', 'fil-v6', 'wifi', 'wifi-v6']: