diff --git a/src/network/async_main.rs b/src/network/async_main.rs
index c0804d4..0351d2a 100644
--- a/src/network/async_main.rs
+++ b/src/network/async_main.rs
@@ -1,6 +1,6 @@
-use std::net::{IpAddr, SocketAddr};
 use std::sync::atomic::Ordering;
 use std::time::Duration;
+use std::net::IpAddr;
 
 use crate::config::TCP_PING_TIME;
 use crate::network::{get_edge, ping_to_sn, read_and_parse_packet};
@@ -14,15 +14,15 @@ use etherparse::IpHeaders;
 use sdlan_sn_rs::config::{AF_INET, SDLAN_DEFAULT_TTL};
 use sdlan_sn_rs::peer::SdlanSock;
 use sdlan_sn_rs::utils::{
-    self, aes_encrypt, create_or_load_uuid, get_current_timestamp, get_sdlan_sock_from_socketaddr,
+     aes_encrypt, get_current_timestamp, 
     ip_to_string, is_multi_broadcast, rsa_decrypt,
 };
-use sdlan_sn_rs::utils::{Result, SDLanError};
+use sdlan_sn_rs::utils::Result;
 use tokio::io::AsyncWriteExt;
 use tokio::sync::mpsc::{channel, Receiver, Sender};
 use tokio_util::sync::CancellationToken;
 
-use super::{check_peer_registration_needed, init_edge, packet, Node, NodeConfig};
+use super::{check_peer_registration_needed, packet, Node };
 use crate::utils::Socket;
 
 use prost::Message;
diff --git a/src/network/mod.rs b/src/network/mod.rs
index 05cc51e..16db429 100644
--- a/src/network/mod.rs
+++ b/src/network/mod.rs
@@ -14,7 +14,3 @@ pub use tun::get_install_channel;
 
 mod device;
 
-pub trait ReadWriter {
-    fn send(&self, content: &[u8]) -> std::io::Result<usize>;
-    fn recv(&self, buf: &mut [u8]) -> std::io::Result<usize>;
-}
diff --git a/src/network/node.rs b/src/network/node.rs
index 8a02af3..9990318 100644
--- a/src/network/node.rs
+++ b/src/network/node.rs
@@ -6,15 +6,15 @@ use std::sync::atomic::{AtomicBool, AtomicU32, AtomicU64, AtomicU8, Ordering};
 use std::sync::{Arc, Mutex, RwLock};
 use std::time::Duration;
 use tokio::io::AsyncReadExt;
-use tokio::sync::mpsc::{channel, Receiver, Sender};
+use tokio::sync::mpsc::Sender;
 use tokio::sync::oneshot;
-use tracing::{debug, error};
+use tracing::error;
 
 use crate::pb::{
     encode_to_tcp_message, encode_to_udp_message, SdlEmpty, SdlStunProbe, SdlStunProbeReply,
 };
 use crate::tcp::{get_tcp_conn, NatType, PacketType, StunProbeAttr};
-use crate::utils::{get_socketaddr_from_sock, send_to_sock, PidRecorder, Socket};
+use crate::utils::{PidRecorder, Socket};
 
 use sdlan_sn_rs::peer::{is_sdlan_sock_equal, IpSubnet, V6Info};
 
@@ -24,7 +24,7 @@ use super::device::{DeviceConfig, Mode};
 use super::tun::{new_iface, Iface};
 use tokio::fs::File;
 
-use sdlan_sn_rs::utils::{create_or_load_uuid, gen_rsa_keys, ip_to_string, load_private_key_file};
+use sdlan_sn_rs::utils::{gen_rsa_keys, load_private_key_file};
 use sdlan_sn_rs::utils::{Result, SDLanError};
 
 static EDGE: OnceCell<Node> = OnceCell::new();
@@ -149,12 +149,12 @@ impl Node {
     }
     pub async fn start(&self, token: String) {
         *self._token.lock().unwrap() = token;
-        self.start_stop_sender.send(true).await;
+        let _ = self.start_stop_sender.send(true).await;
     }
 
     pub async fn stop(&self) {
         *self._token.lock().unwrap() = "".to_owned();
-        self.start_stop_sender.send(false).await;
+        let _ = self.start_stop_sender.send(false).await;
     }
 
     pub fn new(
@@ -289,7 +289,7 @@ impl Node {
 
     pub async fn send_nat_probe_reply(&self, cookie: u32, buf: SdlStunProbeReply) {
         if let Some((_key, chan)) = self.cookie_match.remove(&cookie) {
-            chan.send(buf);
+            let _ = chan.send(buf);
         }
         error!("failed to get such cookie stun probe");
     }
@@ -372,7 +372,7 @@ impl Node {
         self.cookie_match.insert(cookie, tx);
         // let cookie = msg.cookie;
         let msg = encode_to_udp_message(Some(probe), PacketType::StunProbe as u8).unwrap();
-        if let Err(e) = self.udp_sock_v4.send_to(&msg, to_server).await {
+        if let Err(_e) = self.udp_sock_v4.send_to(&msg, to_server).await {
             self.cookie_match.remove(&cookie);
             return Err(SDLanError::NormalError("send error"));
         }
diff --git a/src/network/packet.rs b/src/network/packet.rs
index 2fae457..b7a99e0 100644
--- a/src/network/packet.rs
+++ b/src/network/packet.rs
@@ -29,7 +29,7 @@ pub async fn read_and_parse_packet(
     eee: &Node,
     sock: &Socket,
     timeout: Option<Duration>,
-    is_multicast_sock: bool,
+    _is_multicast_sock: bool,
     // cancel: CancellationToken,
 ) -> Result<()> {
     let mut buf = vec![0; 3000];
diff --git a/src/network/tun_win.rs b/src/network/tun_win.rs
index 40a26e8..be6c1e9 100644
--- a/src/network/tun_win.rs
+++ b/src/network/tun_win.rs
@@ -1,6 +1,4 @@
-use crate::network::ReadWriter;
-use sdlan_sn_rs::utils::{Result, ip_to_string, net_bit_len_to_mask};
-use std::ffi::OsStr;
+use sdlan_sn_rs::utils::{ip_to_string, net_bit_len_to_mask};
 use std::io::{Error, ErrorKind};
 use std::process::Command;
 use std::sync::Arc;
@@ -11,7 +9,7 @@ use super::device::{Mode, DeviceConfig};
 
 pub struct Iface {
     name: String,
-    adapter: Arc<wintun::Adapter>,
+    _adapter: Arc<wintun::Adapter>,
     session: Arc<wintun::Session>,
 }
 
@@ -82,11 +80,11 @@ fn create_wintun(path: &str,name: &str) -> Iface {
 
     let adapter = match wintun::Adapter::open(&wt, name) {
         Ok(a) => a,
-        Err(e) => wintun::Adapter::create(&wt, name, "Example", None)
+        Err(_e) => wintun::Adapter::create(&wt, name, "Example", None)
             .expect("failed to create wintun adapter"),
     };
     let session = Arc::new(adapter.start_session(wintun::MAX_RING_CAPACITY).unwrap());
-    Iface { adapter, session, name: name.to_owned()}
+    Iface { _adapter: adapter, session, name: name.to_owned()}
 }
 
 pub fn new_iface(name: &str, _mode: Mode) -> Iface {
diff --git a/src/tcp/tcp_conn.rs b/src/tcp/tcp_conn.rs
index 6c6c58b..f9ad6c1 100644
--- a/src/tcp/tcp_conn.rs
+++ b/src/tcp/tcp_conn.rs
@@ -8,7 +8,6 @@ use std::{
     time::Duration,
 };
 use tokio::io::BufReader;
-use tokio_util::sync::CancellationToken;
 use tracing::debug;
 
 use futures_util::{future::BoxFuture, pin_mut};
diff --git a/src/utils/socks.rs b/src/utils/socks.rs
index 81ed2fc..5c7397c 100644
--- a/src/utils/socks.rs
+++ b/src/utils/socks.rs
@@ -2,7 +2,7 @@ use sdlan_sn_rs::{
     config::{AF_INET, AF_INET6},
     utils::{Result, SDLanError},
 };
-use std::net::{IpAddr, Ipv4Addr, Ipv6Addr, SocketAddr, SocketAddrV4};
+use std::net::{IpAddr, Ipv4Addr, Ipv6Addr, SocketAddr};
 use tokio::net::ToSocketAddrs;
 use tracing::{debug, error};
 
@@ -90,6 +90,7 @@ pub async fn send_to_sock_v4_and_v6(
 }
 */
 
+#[allow(unused)]
 pub fn get_socketaddr_from_sock(s: &SdlanSock) -> SocketAddr {
     let addr = SocketAddr::new(IpAddr::V4(Ipv4Addr::from(s.v4)), s.port);
     addr