diff --git a/kubi-udp/src/client.rs b/kubi-udp/src/client.rs
index 0538c43..fd96620 100644
--- a/kubi-udp/src/client.rs
+++ b/kubi-udp/src/client.rs
@@ -3,7 +3,11 @@ use std::{
   marker::PhantomData, time::{Instant, Duration}
 };
 use bincode::{Encode, Decode};
-use crate::{BINCODE_CONFIG, packet::ClientPacket};
+use crate::{
+  BINCODE_CONFIG, 
+  packet::{ClientPacket, IdClientPacket},
+  common::{ClientId, DisconnectReason}
+};
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
 pub enum ClientStatus {
@@ -18,19 +22,6 @@ pub struct ClientConfig {
   pub heartbeat_interval: Duration,
 }
 
-pub type ClientId = u8;
-
-#[derive(Default, Encode, Decode)]
-#[repr(u8)]
-pub enum DisconnectReason {
-  #[default]
-  NotConnected,
-  ClientDisconnected,
-  KickedByServer,
-  ClientTimeout,
-  ServerTimeout,
-}
-
 pub struct Client<S, R> where S: Encode + Decode, R: Encode + Decode {
   addr: SocketAddr,
   config: ClientConfig,
@@ -69,20 +60,21 @@ impl<S, R> Client<S, R> where S: Encode + Decode, R: Encode + Decode {
     self.timeout = Instant::now();
     self.last_heartbeat = Instant::now();
     self.socket.connect(self.addr)?;
-    self.send_raw_packet(&ClientPacket::Connect)?;
+    self.send_raw_packet(ClientPacket::Connect)?;
     Ok(())
   }
-  fn send_raw_packet(&self, packet: &ClientPacket<S>) -> anyhow::Result<()> {
-    let bytes = bincode::encode_to_vec(packet, BINCODE_CONFIG)?;
+  fn send_raw_packet(&self, packet: ClientPacket<S>) -> anyhow::Result<()> {
+    let id_packet = IdClientPacket(self.client_id, packet);
+    let bytes = bincode::encode_to_vec(id_packet, BINCODE_CONFIG)?;
     self.socket.send(&bytes)?;
     Ok(())
   }
   pub fn send_message(&self, message: S) -> anyhow::Result<()> {
-    self.send_raw_packet(&ClientPacket::Data(message))?;
+    self.send_raw_packet(ClientPacket::Data(message))?;
     Ok(())
   }
   fn disconnect_inner(&mut self, reason: DisconnectReason) -> anyhow::Result<()> {
-    self.send_raw_packet(&ClientPacket::Disconnect)?;
+    self.send_raw_packet(ClientPacket::Disconnect)?;
     self.status = ClientStatus::Disconnected;
     self.disconnect_reason = DisconnectReason::ClientDisconnected;
     Ok(())
@@ -108,7 +100,7 @@ impl<S, R> Client<S, R> where S: Encode + Decode, R: Encode + Decode {
     }
     if self.last_heartbeat.elapsed() > self.config.heartbeat_interval {
       log::trace!("Sending heartbeat packet");
-      self.send_raw_packet(&ClientPacket::Heartbeat)?;
+      self.send_raw_packet(ClientPacket::Heartbeat)?;
       self.last_heartbeat = Instant::now();
     }
     Ok(())
diff --git a/kubi-udp/src/common.rs b/kubi-udp/src/common.rs
new file mode 100644
index 0000000..ec4b097
--- /dev/null
+++ b/kubi-udp/src/common.rs
@@ -0,0 +1,15 @@
+use std::num::NonZeroU8;
+use bincode::{Encode, Decode};
+
+pub type ClientId = NonZeroU8;
+
+#[derive(Default, Encode, Decode)]
+#[repr(u8)]
+pub enum DisconnectReason {
+  #[default]
+  NotConnected,
+  ClientDisconnected,
+  KickedByServer,
+  ClientTimeout,
+  ServerTimeout,
+}
diff --git a/kubi-udp/src/lib.rs b/kubi-udp/src/lib.rs
index 2790ddc..b906e02 100644
--- a/kubi-udp/src/lib.rs
+++ b/kubi-udp/src/lib.rs
@@ -1,9 +1,7 @@
-pub(crate) mod client;
-pub(crate) mod server;
+pub mod client;
+pub mod server;
 pub(crate) mod packet;
-
-pub use server::Server;
-pub use client::Client;
+pub(crate) mod common;
 
 //pub(crate) trait Serializable: bincode::Encode + bincode::Decode {}
 pub(crate) const BINCODE_CONFIG: bincode::config::Configuration<bincode::config::LittleEndian, bincode::config::Varint, bincode::config::SkipFixedArrayLength> = bincode::config::standard()
diff --git a/kubi-udp/src/packet.rs b/kubi-udp/src/packet.rs
index eb3505b..8b5b8d2 100644
--- a/kubi-udp/src/packet.rs
+++ b/kubi-udp/src/packet.rs
@@ -1,4 +1,5 @@
 use bincode::{Encode, Decode};
+use crate::common::ClientId;
 
 #[repr(u8)]
 #[derive(Encode, Decode)]
@@ -9,6 +10,9 @@ pub enum ClientPacket<T> where T: Encode + Decode {
   Heartbeat,
 }
 
+#[derive(Encode, Decode)]
+pub struct IdClientPacket<T: Encode + Decode>(pub Option<ClientId>, pub ClientPacket<T>);
+
 #[repr(u8)]
 #[derive(Encode, Decode)]
 pub enum ServerPacket<T> where T: Encode + Decode {