diff --git a/src/startup/preload.rs b/src/startup/preload.rs
index d92c667..e69eef6 100644
--- a/src/startup/preload.rs
+++ b/src/startup/preload.rs
@@ -355,7 +355,12 @@ fn nat(interfaces: &Interfaces) -> String {
     );
 
     for nat_iface in &interfaces.nats {
-        for iface in interfaces.internal.iter().chain(interfaces.tunnel.iter()) {
+        for iface in interfaces
+            .internal
+            .iter()
+            .chain(&interfaces.tunnel)
+            .chain(&interfaces.vlan)
+        {
             let is_nat_iface = *nat_iface == iface.interface;
 
             let has_nat_subnet = interfaces