diff --git a/firewall-s3/vm/fortigate.yaml b/firewall-s3/vm/fortigate.yaml
index 23c00e5..6e0a2ef 100644
--- a/firewall-s3/vm/fortigate.yaml
+++ b/firewall-s3/vm/fortigate.yaml
@@ -39,7 +39,12 @@ spec:
           rng: {}
           networkInterfaceMultiqueue: true
           interfaces:
-            - name: default
+            - name: internal
+              masquerade: {}
+              ports:
+                - port: 500
+                - port: 4500
+            - name: external
               masquerade: {}
               ports:
                 - port: 500