diff --git a/zlmediakit-service/src/main/java/cn/skcks/docking/gb28181/media/dto/config/MulticastConfig.java b/zlmediakit-service/src/main/java/cn/skcks/docking/gb28181/media/dto/config/MulticastConfig.java
new file mode 100644
index 0000000..7d5e5a8
--- /dev/null
+++ b/zlmediakit-service/src/main/java/cn/skcks/docking/gb28181/media/dto/config/MulticastConfig.java
@@ -0,0 +1,10 @@
+package cn.skcks.docking.gb28181.media.dto.config;
+
+import lombok.Data;
+
+@Data
+public class MulticastConfig {
+    private String addrMax;
+    private String addrMin;
+    private Integer udpTTL;
+}
diff --git a/zlmediakit-service/src/main/java/cn/skcks/docking/gb28181/media/dto/config/ServerConfig.java b/zlmediakit-service/src/main/java/cn/skcks/docking/gb28181/media/dto/config/ServerConfig.java
index 4ee9cc9..45582f8 100644
--- a/zlmediakit-service/src/main/java/cn/skcks/docking/gb28181/media/dto/config/ServerConfig.java
+++ b/zlmediakit-service/src/main/java/cn/skcks/docking/gb28181/media/dto/config/ServerConfig.java
@@ -26,4 +26,7 @@ public class ServerConfig {
 
     @JsonUnwrapped(prefix = "http.")
     private HttpConfig http;
+
+    @JsonUnwrapped(prefix = "multicast.")
+    private MulticastConfig multicast;
 }