diff --git a/src/client.rs b/src/client.rs
index 9a8e015..6f313f6 100644
--- a/src/client.rs
+++ b/src/client.rs
@@ -26,7 +26,7 @@ pub async fn client_mode(client_config: ClientConfiguration, fd: i32) {
     let mut config = tun2::Configuration::default();
     config.raw_fd(fd).up();
 
-    let mut dev = tun2::create(&config).unwrap();
+    let mut dev = tun2::create_as_async(&config).unwrap();
     //let (mut dev_reader, mut dev_writer) = dev.split();
 
     let sock_rec = Arc::new(sock);
@@ -134,7 +134,7 @@ pub async fn client_mode(client_config: ClientConfiguration, fd: i32) {
             }
         }
     }*/
-    let mut buf = vec![0; 256];
+    let mut buf = vec![0; 2048];
     loop {
         while let Ok(n) = dev.read(&mut buf) {
             info!("Read from tun. {:?} bytes", n);