diff --git a/linker.doc.web/docs/4、通信功能/3.1、虚拟网卡.md b/linker.doc.web/docs/4、通信功能/3.1、虚拟网卡.md
index cad072a1..2b2f1a9f 100644
--- a/linker.doc.web/docs/4、通信功能/3.1、虚拟网卡.md
+++ b/linker.doc.web/docs/4、通信功能/3.1、虚拟网卡.md
@@ -7,8 +7,9 @@ sidebar_position: 1
 :::tip[说明]
 
 1. 各个设备的`网卡IP`，不要一样，要同一网段，且不应该使用`1`、`255`
-2. `局域网IP`，是选填的，可以不填，不懂是啥时，不要填、不要填、不要填
-3. 虽然支持UDP广播，但是UDP广播不会去主动连接所有设备，所以，你可以先 ping 以下对方，让两端相互连接
+2. 请使用 `10.0.0.0 - 10.255.255.255`、`172.16.0.0 - 172.31.255.255`、`192.168.0.0 - 192.168.255.255` 范围内的IP 
+3. `局域网IP`，是选填的，可以不填，不懂是啥时，不要填、不要填、不要填
+4. 虽然支持UDP广播，但是UDP广播不会去主动连接所有设备，所以，你可以先 ping 以下对方，让两端相互连接
 :::
 
 
diff --git a/linker.libs/CommandHelper.cs b/linker.libs/CommandHelper.cs
index 2588e489..3c44dd5f 100644
--- a/linker.libs/CommandHelper.cs
+++ b/linker.libs/CommandHelper.cs
@@ -76,7 +76,7 @@ namespace linker.libs
             }
             else
             {
-                LoggerHelper.Instance.Warning(error);
+                LoggerHelper.Instance.Warning($"file:{fileName},arg:{arg},commands:{string.Join(Environment.NewLine,commands)} -> {error}");
             }
             proc.WaitForExit();
             proc.Close();
diff --git a/linker.tun/ILinkerTunDevice.cs b/linker.tun/ILinkerTunDevice.cs
index 09eacdef..64c8c2ad 100644
--- a/linker.tun/ILinkerTunDevice.cs
+++ b/linker.tun/ILinkerTunDevice.cs
@@ -1,4 +1,5 @@
 using System.Net;
+using System.Net.Sockets;
 
 namespace linker.tun
 {
@@ -55,7 +56,7 @@ namespace linker.tun
         /// <param name="ips"></param>
         /// <param name="ip"></param>
         /// <param name="gateway">是不是网关，是网关，将使用NAT转发，不是网关将添加路由</param>
-        public void AddRoute(LinkerTunDeviceRouteItem[] ips, IPAddress ip,bool gateway);
+        public void AddRoute(LinkerTunDeviceRouteItem[] ips, IPAddress ip, bool gateway);
         /// <summary>
         /// 删除路由
         /// </summary>
@@ -114,6 +115,24 @@ namespace linker.tun
         /// 原始IP包
         /// </summary>
         public ReadOnlyMemory<byte> IPPacket;
+
+        public void Unpacket(ReadOnlyMemory<byte> buffer)
+        {
+            Packet = buffer;
+            IPPacket = buffer.Slice(4);
+            Version = (byte)(IPPacket.Span[0] >> 4 & 0b1111);
+
+            if (Version == 4)
+            {
+                SourceIPAddress = IPPacket.Slice(12, 4);
+                DistIPAddress = IPPacket.Slice(16, 4);
+            }
+            else if (Version == 6)
+            {
+                SourceIPAddress = IPPacket.Slice(8, 16);
+                DistIPAddress = IPPacket.Slice(24, 16);
+            }
+        }
     }
 
     /// <summary>
diff --git a/linker.tun/LinkerTunDeviceAdapter.cs b/linker.tun/LinkerTunDeviceAdapter.cs
index 35806687..3550c236 100644
--- a/linker.tun/LinkerTunDeviceAdapter.cs
+++ b/linker.tun/LinkerTunDeviceAdapter.cs
@@ -191,21 +191,8 @@ namespace linker.tun
 
 
                         LinkerTunDevicPacket packet = new LinkerTunDevicPacket();
-                        packet.Packet = buffer;
-                        packet.IPPacket = buffer.Slice(4);
+                        packet.Unpacket(buffer);
 
-                        packet.Version = (byte)(packet.IPPacket.Span[0] >> 4 & 0b1111);
-
-                        if (packet.Version == 4)
-                        {
-                            packet.SourceIPAddress = packet.IPPacket.Slice(12, 4);
-                            packet.DistIPAddress = packet.IPPacket.Slice(16, 4);
-                        }
-                        else if (packet.Version == 6)
-                        {
-                            packet.SourceIPAddress = packet.IPPacket.Slice(8, 16);
-                            packet.DistIPAddress = packet.IPPacket.Slice(24, 16);
-                        }
                         await linkerTunDeviceCallback.Callback(packet).ConfigureAwait(false);
                     }
                     catch (Exception ex)
diff --git a/linker/plugins/relay/transport/TransportSelfHost.cs b/linker/plugins/relay/transport/TransportSelfHost.cs
index c607cb9e..aed40040 100644
--- a/linker/plugins/relay/transport/TransportSelfHost.cs
+++ b/linker/plugins/relay/transport/TransportSelfHost.cs
@@ -156,6 +156,7 @@ namespace linker.plugins.relay.transport
                 {
                     LoggerHelper.Instance.Error(ex);
                 }
+                callback(null);
             }
             return false;
         }
diff --git a/linker/plugins/tuntap/proxy/TuntapProxy.cs b/linker/plugins/tuntap/proxy/TuntapProxy.cs
index 01ef2279..1435113b 100644
--- a/linker/plugins/tuntap/proxy/TuntapProxy.cs
+++ b/linker/plugins/tuntap/proxy/TuntapProxy.cs
@@ -10,6 +10,7 @@ using linker.plugins.tuntap.config;
 using linker.tun;
 using System.Buffers.Binary;
 using System.Net.Sockets;
+using System.Net;
 
 namespace linker.plugins.tuntap.proxy
 {
@@ -80,7 +81,7 @@ namespace linker.plugins.tuntap.proxy
                 {
                     if (connections.IsEmpty == false)
                     {
-                        await Task.WhenAll(connections.Values.Select(c => c.SendAsync(packet.Packet)));
+                        await Task.WhenAll(connections.Values.Where(c => c != null && c.Connected).Select(c => c.SendAsync(packet.Packet)));
                     }
                 }
                 else
@@ -97,13 +98,16 @@ namespace linker.plugins.tuntap.proxy
                     {
                         await connection.SendAsync(packet.Packet);
                     }
+                    else
+                    {
+                    }
                 }
             }
             else if (packet.Version == 6 && (packet.DistIPAddress.Span[0] & 0xFF) == 0xFF)
             {
                 if (connections.IsEmpty == false)
                 {
-                    await Task.WhenAll(connections.Values.Select(c => c.SendAsync(packet.Packet)));
+                    await Task.WhenAll(connections.Values.Where(c => c != null && c.Connected).Select(c => c.SendAsync(packet.Packet)));
                 }
             }
         }