diff --git a/springboot-backend/src/main/java/com/admin/common/utils/GostUtil.java b/springboot-backend/src/main/java/com/admin/common/utils/GostUtil.java
index b6064c6..ec9e268 100644
--- a/springboot-backend/src/main/java/com/admin/common/utils/GostUtil.java
+++ b/springboot-backend/src/main/java/com/admin/common/utils/GostUtil.java
@@ -301,6 +301,11 @@ public class GostUtil {
     private static JSONObject createListener(String protocol) {
         JSONObject listener = new JSONObject();
         listener.put("type", protocol);
+        if (Objects.equals(protocol, "udp")){
+            JSONObject metadata = new JSONObject();
+            metadata.put("keepAlive", true);
+            listener.put("metadata", metadata);
+        }
         return listener;
     }