diff --git a/trunk/src/app/srs_app_rtsp.cpp b/trunk/src/app/srs_app_rtsp.cpp
index ed684d4b9..3dcf20213 100644
--- a/trunk/src/app/srs_app_rtsp.cpp
+++ b/trunk/src/app/srs_app_rtsp.cpp
@@ -240,6 +240,11 @@ srs_error_t SrsRtspConn::serve()
     return err;
 }
 
+std::string SrsRtspConn::remote_ip()
+{
+    return "";
+}
+
 srs_error_t SrsRtspConn::do_cycle()
 {
     srs_error_t err = srs_success;
@@ -684,6 +689,7 @@ SrsRtspCaster::SrsRtspCaster(SrsConfDirective* c)
     output = _srs_config->get_stream_caster_output(c);
     local_port_min = _srs_config->get_stream_caster_rtp_port_min(c);
     local_port_max = _srs_config->get_stream_caster_rtp_port_max(c);
+    manager = new SrsCoroutineManager();
 }
 
 SrsRtspCaster::~SrsRtspCaster()
@@ -691,10 +697,20 @@ SrsRtspCaster::~SrsRtspCaster()
     std::vector<SrsRtspConn*>::iterator it;
     for (it = clients.begin(); it != clients.end(); ++it) {
         SrsRtspConn* conn = *it;
-        srs_freep(conn);
+        manager->remove(conn);
     }
     clients.clear();
     used_ports.clear();
+
+    srs_freep(manager);
+}
+
+srs_error_t SrsRtspCaster::initialize()
+{
+    srs_error_t err = srs_success;
+    if ((err = manager->start()) != srs_success) {
+        return srs_error_wrap(err, "start manager");
+    }
 }
 
 srs_error_t SrsRtspCaster::alloc_port(int* pport)
@@ -747,6 +763,6 @@ void SrsRtspCaster::remove(SrsRtspConn* conn)
     }
     srs_info("rtsp: remove connection from caster.");
     
-    srs_freep(conn);
+    manager->remove(conn);
 }
 
diff --git a/trunk/src/app/srs_app_rtsp.hpp b/trunk/src/app/srs_app_rtsp.hpp
index 7bbd52651..0ca748535 100644
--- a/trunk/src/app/srs_app_rtsp.hpp
+++ b/trunk/src/app/srs_app_rtsp.hpp
@@ -100,7 +100,7 @@ public:
 };
 
 // The rtsp connection serve the fd.
-class SrsRtspConn : public ISrsCoroutineHandler
+class SrsRtspConn : public ISrsCoroutineHandler, public ISrsConnection
 {
 private:
     std::string output_template;
@@ -143,6 +143,7 @@ public:
     virtual ~SrsRtspConn();
 public:
     virtual srs_error_t serve();
+    virtual std::string remote_ip();
 private:
     virtual srs_error_t do_cycle();
 // internal methods
@@ -179,6 +180,7 @@ private:
     std::map<int, bool> used_ports;
 private:
     std::vector<SrsRtspConn*> clients;
+    SrsCoroutineManager* manager;
 public:
     SrsRtspCaster(SrsConfDirective* c);
     virtual ~SrsRtspCaster();
@@ -188,6 +190,7 @@ public:
     virtual srs_error_t alloc_port(int* pport);
     // Free the alloced rtp port.
     virtual void free_port(int lpmin, int lpmax);
+    virtual srs_error_t initialize();
 // Interface ISrsTcpHandler
 public:
     virtual srs_error_t on_tcp_client(srs_netfd_t stfd);
diff --git a/trunk/src/app/srs_app_server.cpp b/trunk/src/app/srs_app_server.cpp
index d50569684..0a904d514 100644
--- a/trunk/src/app/srs_app_server.cpp
+++ b/trunk/src/app/srs_app_server.cpp
@@ -179,6 +179,7 @@ SrsRtspListener::SrsRtspListener(SrsServer* svr, SrsListenerType t, SrsConfDirec
     srs_assert(type == SrsListenerRtsp);
     if (type == SrsListenerRtsp) {
         caster = new SrsRtspCaster(c);
+        caster->initialize();
     }
 }
 
diff --git a/trunk/src/app/srs_app_server.hpp b/trunk/src/app/srs_app_server.hpp
index 28154600e..87407bb9f 100644
--- a/trunk/src/app/srs_app_server.hpp
+++ b/trunk/src/app/srs_app_server.hpp
@@ -50,6 +50,7 @@ class ISrsUdpHandler;
 class SrsUdpListener;
 class SrsTcpListener;
 class SrsAppCasterFlv;
+class SrsRtspCaster;
 class SrsCoroutineManager;
 
 // The listener type for server to identify the connection,
@@ -107,7 +108,7 @@ class SrsRtspListener : virtual public SrsListener, virtual public ISrsTcpHandle
 {
 private:
     SrsTcpListener* listener;
-    ISrsTcpHandler* caster;
+    SrsRtspCaster* caster;
 public:
     SrsRtspListener(SrsServer* svr, SrsListenerType t, SrsConfDirective* c);
     virtual ~SrsRtspListener();