diff --git a/roles/ifupdown2/templates/interfaces.j2 b/roles/ifupdown2/templates/interfaces.j2
index eecf4fe..4d53123 100644
--- a/roles/ifupdown2/templates/interfaces.j2
+++ b/roles/ifupdown2/templates/interfaces.j2
@@ -29,5 +29,9 @@ iface {{ name }}
     bridge-pvid 0
     post-up bridge vlan del dev {{ name }} vid 1 self
 {% endif %}
+{% if iface.forward | default(false) %}
+    ip-forward yes
+    ip6-forward yes
+{% endif %}
 
 {% endfor %}