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-rw-r--r--core/java/android/net/IpSecManager.java4
1 files changed, 3 insertions, 1 deletions
diff --git a/core/java/android/net/IpSecManager.java b/core/java/android/net/IpSecManager.java
index 01d1aa533a8f..c10680761ff1 100644
--- a/core/java/android/net/IpSecManager.java
+++ b/core/java/android/net/IpSecManager.java
@@ -810,7 +810,9 @@ public final class IpSecManager {
*
* @param underlyingNetwork the new {@link Network} that will carry traffic for this tunnel.
* This network MUST never be the network exposing this IpSecTunnelInterface, otherwise
- * this method will throw an {@link IllegalArgumentException}.
+ * this method will throw an {@link IllegalArgumentException}. If the
+ * IpSecTunnelInterface is later added to this network, all outbound traffic will be
+ * blackholed.
*/
// TODO: b/169171001 Update the documentation when transform migration is supported.
// The purpose of making updating network and applying transforms separate is to leave open