diff --git a/libs/hbb_common b/libs/hbb_common
index 8535b23..072ae27 160000
--- a/libs/hbb_common
+++ b/libs/hbb_common
@@ -1 +1 @@
-Subproject commit 8535b237fb0746f9e45612c545c73712fd946dc5
+Subproject commit 072ae27c89f371f028304b597b08355b91e50dc4
diff --git a/src/rendezvous_server.rs b/src/rendezvous_server.rs
index 6628eca..742d065 100644
--- a/src/rendezvous_server.rs
+++ b/src/rendezvous_server.rs
@@ -321,6 +321,14 @@ impl RendezvousServer {
                         socket.send(&msg_out, addr).await?;
                     }
                 }
+                Some(rendezvous_message::Union::test_nat_request(_)) => {
+                    let mut msg_out = RendezvousMessage::new();
+                    msg_out.set_test_nat_response(TestNatResponse {
+                        port: addr.port() as _,
+                        ..Default::default()
+                    });
+                    socket.send(&msg_out, addr).await?;
+                }
                 _ => {}
             }
         }