diff --git a/docs/en/config/transport.md b/docs/en/config/transport.md
index 707e8d9..b560f27 100644
--- a/docs/en/config/transport.md
+++ b/docs/en/config/transport.md
@@ -664,6 +664,12 @@ in `AsIs` domainStrategy, built-in golang happyEyeballs is applied(currently it
 
 :::
 
+::: tip
+
+when `dialerProxy` is set `happyEyeballs` is not applied, and only a random IP will replace the domain.
+
+:::
+
 ```json
 "happyEyeballs": {
     "tryDelayMs": 250,