diff --git a/src/network/tun_win.rs b/src/network/tun_win.rs
index b7ba419..a5c25cb 100644
--- a/src/network/tun_win.rs
+++ b/src/network/tun_win.rs
@@ -1,12 +1,15 @@
 use crate::network::ReadWriter;
-use sdlan_sn_rs::utils::Result;
+use sdlan_sn_rs::utils::{Result, ip_to_string, net_bit_len_to_mask};
 use std::io::{Error, ErrorKind};
+use std::process::Command;
 use std::sync::Arc;
 use wintun;
+use tracing::{error, debug};
 
 use super::device::{Mode, DeviceConfig};
 
 pub struct Iface {
+    name: String,
     adapter: Arc<wintun::Adapter>,
     session: Arc<wintun::Session>,
 }
@@ -39,10 +42,36 @@ impl  Iface {
     }
 
     pub fn reload_config(&self, device_config: &DeviceConfig) {
+        let netbit = device_config.get_net_bit();
+        let ip = device_config.get_ip();
+        if netbit == 0 || ip == 0 {
+            error!("reload config's ip is 0");
+            return;
+        }
+        let ip = ip_to_string(&ip);
+        let netbit = ip_to_string(&net_bit_len_to_mask(netbit));
+
+        let res = Command::new("netsh")
+            .arg("ip")
+            .arg("set")
+            .arg("address")
+            .arg(&format!("name=\"{}\"", self.name))
+            .arg("source=static")
+            .arg(&format!("addr={}", ip))
+            .arg(&format!("mask={}", netbit))
+            .output();
+        match res {
+            Ok(_) => {
+                debug!("netsh ok");
+            }
+            Err(e) => {
+                error!("failed to run netsh: {}", e.to_string());
+            }
+        }
     }
 }
 
-fn create_wintun(path: &str) -> Iface {
+fn create_wintun(path: &str,name: &str) -> Iface {
     let wt = unsafe { wintun::load_from_path(path) }.expect("failed to load wintun");
 
     let adapter = match wintun::Adapter::open(&wt, "Demo") {
@@ -51,10 +80,10 @@ fn create_wintun(path: &str) -> Iface {
             .expect("failed to create wintun adapter"),
     };
     let session = Arc::new(adapter.start_session(wintun::MAX_RING_CAPACITY).unwrap());
-    Iface { adapter, session }
+    Iface { adapter, session, name: name.to_owned()}
 }
 
 pub fn new_iface(name: &str, mode: Mode) -> Iface {
-    create_wintun("./wintun.dll")
+    create_wintun("./wintun.dll", name)
     // Ok(Box::new(create_wintun("/path/to/file")))
 }