diff --git a/server/tools/protobuild/ss_msgid.proto b/server/tools/protobuild/ss_msgid.proto
index ef3f819..d1eeae9 100644
--- a/server/tools/protobuild/ss_msgid.proto
+++ b/server/tools/protobuild/ss_msgid.proto
@@ -13,6 +13,7 @@ enum SSMessageId_e
     _SS_MS_HttpTunnelResponse = 15;
     _SS_HttpTunnelRequest = 16;
     _SS_HttpTunnelResponse = 17;
+    _SS_BindUpStreamSocket = 20;
 
     _SS_CMKcpHandshake = 99;
     _SS_CMPing = 101;
diff --git a/server/tools/protobuild/ss_proto.proto b/server/tools/protobuild/ss_proto.proto
index da7e761..66ec48d 100644
--- a/server/tools/protobuild/ss_proto.proto
+++ b/server/tools/protobuild/ss_proto.proto
@@ -132,3 +132,7 @@ message SS_Pong
 message SS_ForceCloseSocket
 {
 }
+
+message SS_BindUpStreamSocket
+{
+}
diff --git a/server/wsproxy/app.cc b/server/wsproxy/app.cc
index f5de7da..a25f49c 100644
--- a/server/wsproxy/app.cc
+++ b/server/wsproxy/app.cc
@@ -259,7 +259,9 @@ void App::ProcessTargetServerMsg(f8::MsgHdr* hdr)
         GCListener::Instance()->ForceCloseClient(hdr->socket_handle);
         return;
     }
-    if (hdr->msgid == ss::_SS_CMLogin || hdr->msgid == ss::_SS_CMReconnect) {
+    if (hdr->msgid == ss::_SS_CMLogin ||
+        hdr->msgid == ss::_SS_CMReconnect ||
+        hdr->msgid == ss::_SS_BindUpStreamSocket) {
         DownStreamMgr::Instance()->BindUpStream(hdr->socket_handle, hdr->ip_saddr);
         GCListener::Instance()->MarkClient(hdr->socket_handle, true);
     }