diff --git a/src/network/tun_win.rs b/src/network/tun_win.rs
index 7bd76cb..3d80001 100644
--- a/src/network/tun_win.rs
+++ b/src/network/tun_win.rs
@@ -15,7 +15,7 @@ use wintun;
 use crate::get_edge;
 use crate::network::{
     generate_arp_request, send_arp_request, send_packet_to_net, ArpHdr, ArpRequestInfo,
-    ArpResponse, ARP_REPLY,
+    ArpResponse, ARP_REPLY, ARP_REQUEST,
 };
 use crate::pb::{encode_to_udp_message, SdlData};
 use crate::tcp::PacketType;
@@ -102,7 +102,7 @@ impl TunTapPacketHandler for Iface {
                     error!("payload length error");
                     return Ok(());
                 }
-                let crc_code = &rest[(rest.len() - 4)..rest.len()];
+                // let crc_code = &rest[(rest.len() - 4)..rest.len()];
 
                 // let rest = &rest[..(rest.len() - 4)];
 
@@ -200,7 +200,7 @@ impl TunTapPacketHandler for Iface {
                                 .await;
                             }
                         }
-                        other => {
+                        _other => {
                             println!("unknown arp type info");
                         }
                     }
@@ -217,7 +217,7 @@ impl TunTapPacketHandler for Iface {
                                 send_arp_request(ArpRequestInfo::Set { ip, mac }).await;
                             }
                         }
-                        Err(e) => {
+                        Err(_) => {
                             error!("failed to parse ip header, dropping");
                             return Ok(());
                         }