diff --git a/src/network/tun_linux.rs b/src/network/tun_linux.rs
index ae694d5..58dd34e 100755
--- a/src/network/tun_linux.rs
+++ b/src/network/tun_linux.rs
@@ -443,14 +443,15 @@ impl TunTapPacketHandler for Iface {
                                 arp.sipaddr =
                                     [((self_ip >> 16) & 0xffff) as u16, (self_ip & 0xffff) as u16];
 
-                                 let mut data_buf = BytesMut::from(arp.marshal_to_bytes().as_slice());
-                                 let encryptor = edge.encryptor.load();
-                                 if let Err(e) = encryptor.encrypt(&mut data_buf) {
-                                     error!("failed to encrypt arp reply: {:?}", e);
-                                     return Ok(());
-                                 }
+                                let mut data_buf =
+                                    BytesMut::from(arp.marshal_to_bytes().as_slice());
+                                let encryptor = edge.encryptor.load();
+                                if let Err(e) = encryptor.encrypt(&mut data_buf) {
+                                    error!("failed to encrypt arp reply: {:?}", e);
+                                    return Ok(());
+                                }
 
-                                 let data_bytes = data_buf.freeze();
+                                let data_bytes = data_buf.freeze();
 
                                 let data = SdlData {
                                     is_p2p: true,
@@ -523,7 +524,7 @@ impl TunTapPacketHandler for Iface {
 
                     // println!("got ip packet");
                     // println!("got data: {:?}", rest);
-                    match edge.device.send(rest) {
+                    match edge.device.send(rest).await {
                         Ok(size) => {
                             debug!("send to tun {} bytes", size);
                         }