diff --git a/vnt/src/handle/recv_data/server.rs b/vnt/src/handle/recv_data/server.rs
index 58ea1ab..3a6c7fe 100644
--- a/vnt/src/handle/recv_data/server.rs
+++ b/vnt/src/handle/recv_data/server.rs
@@ -260,8 +260,11 @@ impl<Call: VntCallback> ServerPacketHandler<Call> {
                         if old.virtual_ip != Ipv4Addr::UNSPECIFIED {
                             log::info!("ip发生变化,old:{:?},response={:?}", old, response);
                         }
-                        if let Err(e) = self.device.set_ip(virtual_ip, virtual_netmask){
-                            self.callback.error(ErrorInfo::new_msg(ErrorType::Unknown,format!("set_ip {:?}",e)));
+                        if let Err(e) = self.device.set_ip(virtual_ip, virtual_netmask) {
+                            self.callback.error(ErrorInfo::new_msg(
+                                ErrorType::Unknown,
+                                format!("set_ip {:?}", e),
+                            ));
                             return Ok(());
                         }
                         let mut guard = self.route_record.lock();