Index: script.txt
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--- script.txt
+++ script.txt
@@ -93,13 +93,14 @@
   - This decouples testbed management from infrastructure ownership and mgmt.
 - Testbed management traffic uses a tinc mesh VPN:
   - Avoids problems with firewalls and private networks in nodes.
   - IPv6 is used to avoid address scarcity and incompatibility between CNs.
   - Link instability is tolerated by using short-lived mgmt connections.
-- Gateways allow a testbed to span multiple CNs.
-  - Connecting the mgmt net over external means (e.g. FEDERICA, the Internet).
-  - Gateways can make the management network available to the Internet.
+- Gateways are entry points to the mgmt network.
+  - They can extend it over multiple CNs by external means (e.g. FEDERICA, the
+    Internet).
+  - They can also route the management network to the Internet.
 - A researcher runs the experiments of a slice in slivers each running in a
   different node.
 
 ** Slices, slivers and nodes
 # Diagram: Slices and slivers, two or three nodes with a few slivers on them,