diff --git a/gestion/gen_confs/firewall_new.py b/gestion/gen_confs/firewall_new.py
index 8719e3fc..8d6d9b3a 100755
--- a/gestion/gen_confs/firewall_new.py
+++ b/gestion/gen_confs/firewall_new.py
@@ -465,7 +465,7 @@ class firewall_komaz(firewall_crans) :
     ports_p2p = [ '412', '1214', '4662:4665' , '6346:6347', '6699', '6881:6889' ]
 
     liste_reseaux_non_routables = [ '10.0.0.0/8', '172.16.0.0/12',
-        '169.254.0.0/16', '192.168.0.0/16', '224.0.0.0/4']
+        '169.254.0.0/16', '192.168.0.0/16', '224.0.0.0/4', '100.64.0.0/10']
 
     def reseaux_non_routables(self) :
         """ Construction de RESEAUX_NON_ROUTABLES_{DST,SRC} """