diff --git a/roles/router/templates/firewall_config.py b/roles/router/templates/firewall_config.py
index 6909b85..5ccd388 100644
--- a/roles/router/templates/firewall_config.py
+++ b/roles/router/templates/firewall_config.py
@@ -71,6 +71,10 @@ nat = [
             '10.{{ subnet_ids.users_accueil }}.2.0/24': '45.66.108.25{{ apartment_block_id }}'
         },
         'extra_nat_group': 'accueil_ens23_allowed',
+        'masquerade': [
+            '10.{{ subnet_ids.users_accueil }}.1.0/24',
+            '10.{{ subnet_ids.users_accueil }}.2.0/24',
+        ]
     },
 ]