diff --git a/src/extapi_service.cpp b/src/extapi_service.cpp
index 4727aa0..1be34e3 100644
--- a/src/extapi_service.cpp
+++ b/src/extapi_service.cpp
@@ -44,5 +44,15 @@ void ExtAPIService::initCanPassthroughServer() {
       }
     });
   });
+
+  m_zcanreceiverhost->registerListener([this](uint8_t fromboardid, uint8_t *packet, size_t len) {
+    string hexStr = StringUtils().bytesToString((uint8_t*)packet, len);
+    logger->info("up can bin -> {}({})", hexStr, len);
+    auto   clients = m_canPassthroughServer->getClients();
+    for (auto &each : clients) {
+      if (each) each->sendText(hexStr);
+    }
+  });
+
   m_canPassthroughServer->listenAndStart();
 }