diff --git a/postman/ZLMediaKit.postman_collection.json b/postman/ZLMediaKit.postman_collection.json
index 59840416..a6dc237f 100644
--- a/postman/ZLMediaKit.postman_collection.json
+++ b/postman/ZLMediaKit.postman_collection.json
@@ -1,10 +1,11 @@
 {
 	"info": {
-		"_postman_id": "509e5f6b-728c-4d5f-b3e8-521d76b2cc7a",
+		"_postman_id": "08e3bc35-5318-4949-81bb-90d854706194",
 		"name": "ZLMediaKit",
 		"description": "媒体服务器",
 		"schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json",
-		"_exporter_id": "29185956"
+		"_exporter_id": "29185956",
+		"_collection_link": "https://lively-station-598157.postman.co/workspace/%E6%B5%81%E5%AA%92%E4%BD%93%E6%9C%8D%E5%8A%A1~1e119172-45b0-4ed6-b1fc-8a15d0e2d5f8/collection/29185956-08e3bc35-5318-4949-81bb-90d854706194?action=share&source=collection_link&creator=29185956"
 	},
 	"item": [
 		{
@@ -1216,7 +1217,7 @@
 				"method": "GET",
 				"header": [],
 				"url": {
-					"raw": "{{ZLMediaKit_URL}}/index/api/seekRecordStamp?secret={{ZLMediaKit_secret}}&vhost={{defaultVhost}}&app=live&stream=obs&stamp",
+					"raw": "{{ZLMediaKit_URL}}/index/api/seekRecordStamp?secret={{ZLMediaKit_secret}}&vhost={{defaultVhost}}&app=live&stream=obs&stamp=1000",
 					"host": [
 						"{{ZLMediaKit_URL}}"
 					],
@@ -1473,6 +1474,12 @@
 							"value": "1",
 							"description": "是否为单音频track，用于语音对讲",
 							"disabled": true
+						},
+						{
+							"key": "local_ip",
+							"value": "::",
+							"description": "指定创建RTP的本地ip，ipv4可填”0.0.0.0“，ipv6可填”::“，一般保持默认",
+							"disabled": true
 						}
 					]
 				}
@@ -1485,14 +1492,14 @@
 				"method": "GET",
 				"header": [],
 				"url": {
-					"raw": "{{ZLMediaKit_URL}}/index/api/openRtpServer?secret={{ZLMediaKit_secret}}&port=0&tcp_mode=1&stream_id=test",
+					"raw": "{{ZLMediaKit_URL}}/index/api/openRtpServerMultiplex?secret={{ZLMediaKit_secret}}&port=0&tcp_mode=1&stream_id=test",
 					"host": [
 						"{{ZLMediaKit_URL}}"
 					],
 					"path": [
 						"index",
 						"api",
-						"openRtpServer"
+						"openRtpServerMultiplex"
 					],
 					"query": [
 						{
@@ -1520,6 +1527,12 @@
 							"value": "0",
 							"description": "是否为单音频track，用于语音对讲",
 							"disabled": true
+						},
+						{
+							"key": "local_ip",
+							"value": "::",
+							"description": "指定创建RTP的本地ip，ipv4可填”0.0.0.0“，ipv6可填”::“，一般保持默认",
+							"disabled": true
 						}
 					]
 				}
@@ -2252,4 +2265,4 @@
 			"value": "__defaultVhost__"
 		}
 	]
-}
+}
\ No newline at end of file
diff --git a/server/WebApi.cpp b/server/WebApi.cpp
index aa3df337..14b654c3 100755
--- a/server/WebApi.cpp
+++ b/server/WebApi.cpp
@@ -1197,7 +1197,11 @@ void installWebApi() {
             //兼容老版本请求，新版本去除enable_tcp参数并新增tcp_mode参数
             tcp_mode = 1;
         }
-        auto port = openRtpServer(allArgs["port"], stream_id, tcp_mode, "::", allArgs["re_use_port"].as<bool>(),
+        std::string local_ip = "::";
+        if (!allArgs["local_ip"].empty()) {
+            local_ip = allArgs["local_ip"];
+        }
+        auto port = openRtpServer(allArgs["port"], stream_id, tcp_mode, local_ip, allArgs["re_use_port"].as<bool>(),
                                   allArgs["ssrc"].as<uint32_t>(), allArgs["only_audio"].as<bool>());
         if (port == 0) {
             throw InvalidArgsException("该stream_id已存在");
@@ -1215,9 +1219,11 @@ void installWebApi() {
           // 兼容老版本请求，新版本去除enable_tcp参数并新增tcp_mode参数
           tcp_mode = 1;
       }
-
-      auto port = openRtpServer(
-          allArgs["port"], stream_id, tcp_mode, "::", true, 0, allArgs["only_audio"].as<bool>(),true);
+      std::string local_ip = "::";
+      if (!allArgs["local_ip"].empty()) {
+          local_ip = allArgs["local_ip"];
+      }
+      auto port = openRtpServer(allArgs["port"], stream_id, tcp_mode, local_ip, true, 0, allArgs["only_audio"].as<bool>(),true);
       if (port == 0) {
           throw InvalidArgsException("该stream_id已存在");
       }