diff --git a/Cargo.lock b/Cargo.lock
index 86652ae..3763ca7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -179,6 +179,7 @@ name = "quakeball"
 version = "0.1.0"
 dependencies = [
  "godot",
+ "serde",
  "teanet",
 ]
 
diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index 995e8f9..c906dfd 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -8,4 +8,5 @@ crate-type = ["cdylib"]  # Compile this crate to a dynamic C library.
 
 [dependencies]
 godot = "0.5.4"
+serde = "1.0.228"
 teanet = { path = "../teanet-rust" }
diff --git a/rust/src/network_manager.rs b/rust/src/network_manager.rs
index 7673d8f..94813b5 100644
--- a/rust/src/network_manager.rs
+++ b/rust/src/network_manager.rs
@@ -1,6 +1,10 @@
-use std::net::SocketAddr;
+use std::{
+    net::SocketAddr,
+    time::{Duration, Instant},
+};
 
 use godot::{prelude::*, tools::get_autoload_by_name};
+use serde::{Deserialize, Serialize};
 use teanet::{Peer, PeerConfig};
 
 use crate::ui::cli::{CLI_GLOBAL_NAME, CliColor, CommandLinePanel};
@@ -10,6 +14,8 @@ use crate::ui::cli::{CLI_GLOBAL_NAME, CliColor, CommandLinePanel};
 pub struct NetworkManager {
     peer: Option<PeerKind>,
 
+    last_hello: Instant,
+
     base: Base<Node>,
 }
 
@@ -18,7 +24,11 @@ pub const NETWORK_SINGLETON_NAME: &str = "NetworkManagerGlob";
 #[godot_api]
 impl INode for NetworkManager {
     fn init(base: Base<Node>) -> Self {
-        NetworkManager { peer: None, base }
+        NetworkManager {
+            last_hello: Instant::now(),
+            peer: None,
+            base,
+        }
     }
 
     fn ready(&mut self) {
@@ -42,6 +52,17 @@ impl INode for NetworkManager {
         if let Some(peer) = &mut self.peer {
             let mut cli = get_autoload_by_name::<CommandLinePanel>(CLI_GLOBAL_NAME);
 
+            match peer {
+                PeerKind::Client(..) => {}
+                PeerKind::Server(peer, _) => {
+                    let now = Instant::now();
+                    if now - self.last_hello > Duration::from_millis(2000) {
+                        self.last_hello = now;
+                        peer.broadcast_reliable(Package::Hello);
+                    }
+                }
+            }
+
             match peer {
                 PeerKind::Client(peer, _) => match peer.poll() {
                     Ok(message) => {
@@ -69,6 +90,14 @@ impl INode for NetworkManager {
                                 teanet::PeerMessage::Closed => {
                                     self.peer = None;
                                 }
+                                teanet::PeerMessage::Message(msg) => match msg {
+                                    Package::Hello => {
+                                        cli.bind_mut().publish_message(
+                                            format!("Got \"Hello\"!"),
+                                            CliColor::Info,
+                                        );
+                                    }
+                                },
                             }
                         }
                     }
@@ -104,6 +133,14 @@ impl INode for NetworkManager {
                                         .publish_message(format!("Server closed"), CliColor::Info);
                                     self.peer = None;
                                 }
+                                teanet::PeerMessage::Message(msg) => match msg {
+                                    Package::Hello => {
+                                        cli.bind_mut().publish_message(
+                                            format!("Got \"Hello\"!"),
+                                            CliColor::Info,
+                                        );
+                                    }
+                                },
                             }
                         }
                     }
@@ -168,7 +205,12 @@ impl NetworkManager {
     }
 }
 
-pub enum PeerKind {
-    Client(Peer, SocketAddr),
-    Server(Peer, u16),
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub enum Package {
+    Hello,
+}
+
+pub enum PeerKind {
+    Client(Peer<Package>, SocketAddr),
+    Server(Peer<Package>, u16),
 }
diff --git a/teanet-rust b/teanet-rust
index 97230a2..44122d7 160000
--- a/teanet-rust
+++ b/teanet-rust
@@ -1 +1 @@
-Subproject commit 97230a23be7758450551f4baa8077208d06f4ba3
+Subproject commit 44122d77d6382043be85ff0a72398748b9ab3493