diff --git a/src/main.rs b/src/main.rs
index 1d98fd5..32793ff 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -18,14 +18,15 @@ const TAIL: [u8;3] = [0x76, 0x66, 0x56];
 
 #[derive(Serialize, Deserialize)]
 struct VpnPacket {
-    start: Vec<u8>,
+    //start: Vec<u8>,
     data: Vec<u8>,
-    end: Vec<u8>
+    //end: Vec<u8>
 }
 
 impl VpnPacket {
     fn init(d: Vec<u8>) -> Self {
-        VpnPacket{start: (&HEADER).to_vec(), data: d, end: (&TAIL).to_vec()}
+        //VpnPacket{start: (&HEADER).to_vec(), data: d, end: (&TAIL).to_vec()}
+        VpnPacket { data: d }
     }
 }
 
diff --git a/src/tcp_client.rs b/src/tcp_client.rs
index f0d0c29..99450a0 100644
--- a/src/tcp_client.rs
+++ b/src/tcp_client.rs
@@ -92,19 +92,19 @@ pub async fn client_mode(remote_addr: String) {
     });
 
     tokio::spawn(async move {
-        let mut buf = vec![0; 1024];
+        let mut buf = vec![0; 4096];
         while let Ok(n) = dev_reader.read(&mut buf) {
             dx.send(buf[..n].to_vec()).unwrap();
         }
     });
 
     tokio::spawn(async move {
-        let mut buf = vec![0; 1024];
+        let mut buf = vec![0; 4096];
         loop {
             if let Ok(n) = sock_reader.read(&mut buf).await {
                 //info!("Catch from socket: {:?}", &buf[..n]);
                 let vpn_packet: VpnPacket = bincode::deserialize(&buf[..n]).unwrap();
-                if vpn_packet.start != &HEADER || vpn_packet.end != &TAIL { error!("Bad packet"); continue; }
+                //if vpn_packet.start != &HEADER || vpn_packet.end != &TAIL { error!("Bad packet"); continue; }
                 tx.send(vpn_packet.data).unwrap();
             }
         }
diff --git a/src/tcp_server.rs b/src/tcp_server.rs
index a1ef514..a882e54 100644
--- a/src/tcp_server.rs
+++ b/src/tcp_server.rs
@@ -38,7 +38,7 @@ pub async fn server_mode() {
     });
 
     tokio::spawn(async move {
-        let mut buf = vec![0; 1024];
+        let mut buf = vec![0; 4096];
         while let Ok(n) = dev_reader.read(&mut buf) {
             dx.send(buf[..n].to_vec()).unwrap();
         }
@@ -64,12 +64,12 @@ pub async fn server_mode() {
         });
 
         tokio::spawn(async move {
-            let mut buf = vec![0; 1024];
+            let mut buf = vec![0; 4096];
             loop {
                 if let Ok(n) = sock_reader.read(&mut buf).await {
                     info!("Catched from sock: {:?}", &buf[..n]);
                     let vpn_packet: VpnPacket = bincode::deserialize(&buf[..n]).unwrap();
-                    if vpn_packet.start != &HEADER || vpn_packet.end != &TAIL { error!("Bad packet"); continue; }
+                    //if vpn_packet.start != &HEADER || vpn_packet.end != &TAIL { error!("Bad packet"); continue; }
                     thread_tx.send(vpn_packet.data).unwrap();
                 }
             }