diff --git a/.github/workflows/dotnet.yml b/.github/workflows/dotnet.yml
index cf05a8ea..b5dfa444 100644
--- a/.github/workflows/dotnet.yml
+++ b/.github/workflows/dotnet.yml
@@ -48,16 +48,24 @@ jobs:
       env:
           GITHUB_TOKEN: '${{ secrets.ACTIONS_TOKEN }}'
       with:
-        tag_name: v1.2.0.5
-        release_name: v1.2.0.5.${{ steps.date.outputs.today }}
+        tag_name: v1.2.0.6
+        release_name: v1.2.0.6.${{ steps.date.outputs.today }}
         draft: false
         prerelease: false
         body: |
-          1. UDP端口映射连接(无ssl加密)
-          2. UDP打洞，纯净版(无ssl加密)
-          3. 如果当前版本小于v1.2.0.4，则windows下需要重新卸载安装服务
-          4. 先更新所有客户端，再更新服务端(先更新服务端会获取不到客户端列表)
-          5. 用不上无加密UDP打洞的可以不更新
+          1. 显示虚拟网卡ping值
+          2. 更新服务器，更新服务器，更新服务器
+    
+    #- name: upload win x86 oss
+    #  id: upload-win-x86-oss
+    #  uses: tvrcgo/oss-action@v0.1.1
+    #  with:
+    #    region: oss-cn-guangzhou
+    #    key-id: '${{ secrets.ALIYUN_OSS_ID }}'
+    #    key-secret: '${{ secrets.ALIYUN_OSS_SECRET }}'
+    #    bucket: snltty
+    #    asset-path: ./public/publish-zip/linker-win-x86.zip
+    #    target-path: /linker/v1.2.0.6/linker-win-x86.zip
 
     - name: upload win x86
       id: upload-win-x86
diff --git a/linker.doc.web/docs/4、通信功能/3.1.1、点对网.md b/linker.doc.web/docs/4、通信功能/3.1.1、点对网.md
index ed43e4ab..6c1ac71c 100644
--- a/linker.doc.web/docs/4、通信功能/3.1.1、点对网.md
+++ b/linker.doc.web/docs/4、通信功能/3.1.1、点对网.md
@@ -38,8 +38,21 @@ sudo pfctl -f /etc/pf.conf -e
 
 :::tip[2、情况2，你的设备无法使用NAT转发时]
 
-1. 你的设备无法使用NAT转发(一般出现在低版本windows下，win10以下)，那你只能使用windows的端口转发功能来访问你当前设备局域网下的其它设备
+1. 你的设备无法使用NAT转发(一般出现在低版本windows下，win10以下)，那你只能使用端口转发功能来访问你当前设备局域网下的其它设备
 2. 按如下配置。当其它设备通过`192.168.54.2:12345` 访问时，将访问到你的局域网的`192.168.1.35:3389`
+3. macos下需要你自己在**被访问端**添加端口转发
+```
+//编辑 pf 配置文件
+sudo nano /etc/pf.conf
+
+//添加转发规则
+rdr pass on en0 inet proto tcp from any to any port 33890 -> 127.0.0.1 port 3389
+rdr pass on en0 inet proto udp from any to any port 33890 -> 127.0.0.1 port 3389
+
+//启用并重新加载 pf
+sudo pfctl -f /etc/pf.conf
+sudo pfctl -e
+```
 
 ![Docusaurus Plushie](./img/tun-forward.png)
 
diff --git a/linker.libs/OperatingManager.cs b/linker.libs/OperatingManager.cs
new file mode 100644
index 00000000..20c4354b
--- /dev/null
+++ b/linker.libs/OperatingManager.cs
@@ -0,0 +1,35 @@
+using System.Collections.Concurrent;
+using System.Reflection.PortableExecutable;
+using System.Threading;
+
+namespace linker.libs
+{
+    public sealed class OperatingManager
+    {
+        private uint operating = 0;
+        public bool Operating => operating == 1;
+
+        public bool StartOperation()
+        {
+            return Interlocked.CompareExchange(ref operating, 1, 0) == 0;
+        }
+        public void StopOperation()
+        {
+            Interlocked.Exchange(ref operating, 0);
+        }
+    }
+
+    public sealed class OperatingMultipleManager
+    {
+        private readonly ConcurrentDictionary<string, bool> dicOperating = new ConcurrentDictionary<string, bool>();
+
+        public bool StartOperation(string key)
+        {
+            return dicOperating.TryAdd(key, true);
+        }
+        public void StopOperation(string key)
+        {
+            dicOperating.TryRemove(key, out _);
+        }
+    }
+}
diff --git a/linker.libs/VersionManager.cs b/linker.libs/VersionManager.cs
new file mode 100644
index 00000000..32644fed
--- /dev/null
+++ b/linker.libs/VersionManager.cs
@@ -0,0 +1,21 @@
+
+using System.Threading;
+
+namespace linker.libs
+{
+    public sealed class VersionManager
+    {
+        private ulong version = 0;
+
+        public bool Eq(ulong outsideVersion, out ulong insideVersion)
+        {
+            insideVersion = version;
+            return outsideVersion == version;
+        }
+
+        public void Add()
+        {
+            Interlocked.Increment(ref version);
+        }
+    }
+}
diff --git a/linker.tun/LinkerLinuxTunDevice.cs b/linker.tun/LinkerLinuxTunDevice.cs
index 3822c93d..e2438666 100644
--- a/linker.tun/LinkerLinuxTunDevice.cs
+++ b/linker.tun/LinkerLinuxTunDevice.cs
@@ -1,6 +1,7 @@
 using linker.libs;
 using linker.libs.extends;
 using Microsoft.Win32.SafeHandles;
+using System.Linq;
 using System.Net;
 using System.Runtime.InteropServices;
 
@@ -131,7 +132,7 @@ namespace linker.tun
             try
             {
                 IPAddress network = NetworkHelper.ToNetworkIp(address, NetworkHelper.MaskValue(prefixLength));
-                    CommandHelper.Linux(string.Empty, new string[] {
+                CommandHelper.Linux(string.Empty, new string[] {
                     $"sysctl -w net.ipv4.ip_forward=1",
                     $"iptables -t nat -A POSTROUTING ! -o {Name} -s {network}/{prefixLength} -j MASQUERADE",
                 });
@@ -165,9 +166,33 @@ namespace linker.tun
 
         public void AddForward(List<LinkerTunDeviceForwardItem> forwards)
         {
+            string[] commands = forwards.Where(c => c != null && c.Enable).SelectMany(c =>
+            {
+                return new string[] {
+                    $"sysctl -w net.ipv4.ip_forward=1",
+                    $"iptables -t nat -A PREROUTING -p tcp --dport {c.ListenPort} -j DNAT --to-destination {c.ConnectAddr}:{c.ConnectPort}",
+                    $"iptables -t nat -A POSTROUTING -p tcp --dport {c.ConnectPort} -j MASQUERADE",
+                    $"iptables -t nat -A PREROUTING -p udp --dport {c.ListenPort} -j DNAT --to-destination {c.ConnectAddr}:{c.ConnectPort}",
+                    $"iptables -t nat -A POSTROUTING -p udp --dport {c.ConnectPort} -j MASQUERADE",
+                };
+
+            }).ToArray();
+            CommandHelper.Windows(string.Empty, commands);
         }
         public void RemoveForward(List<LinkerTunDeviceForwardItem> forwards)
         {
+            string[] commands = forwards.Where(c => c != null && c.Enable).SelectMany(c =>
+            {
+                return new string[] {
+                    $"sysctl -w net.ipv4.ip_forward=1",
+                    $"iptables -t nat -D PREROUTING -p tcp --dport {c.ListenPort} -j DNAT --to-destination {c.ConnectAddr}:{c.ConnectPort}",
+                    $"iptables -t nat -D POSTROUTING -p tcp --dport {c.ConnectPort} -j MASQUERADE",
+                    $"iptables -t nat -D PREROUTING -p udp --dport {c.ListenPort} -j DNAT --to-destination {c.ConnectAddr}:{c.ConnectPort}",
+                    $"iptables -t nat -D POSTROUTING -p udp --dport {c.ConnectPort} -j MASQUERADE"
+                };
+
+            }).ToArray();
+            CommandHelper.Windows(string.Empty, commands);
         }
 
 
@@ -287,7 +312,7 @@ namespace linker.tun
         {
         }
 
-        
+
     }
 
 
diff --git a/linker.tunnel/transport/TransportUdp.cs b/linker.tunnel/transport/TransportUdp.cs
index 3550c889..88f84424 100644
--- a/linker.tunnel/transport/TransportUdp.cs
+++ b/linker.tunnel/transport/TransportUdp.cs
@@ -13,7 +13,7 @@ namespace linker.tunnel.transport
     {
         public string Name => "udp";
 
-        public string Label => "UDP、非常纯";
+        public string Label => "UDP、非常纯，无ssl";
 
         public TunnelProtocolType ProtocolType => TunnelProtocolType.Udp;
         public TunnelWanPortProtocolType AllowWanPortProtocolType => TunnelWanPortProtocolType.Udp;
diff --git a/linker.tunnel/transport/TransportUdpPortMap.cs b/linker.tunnel/transport/TransportUdpPortMap.cs
index 109d8c88..b4a366be 100644
--- a/linker.tunnel/transport/TransportUdpPortMap.cs
+++ b/linker.tunnel/transport/TransportUdpPortMap.cs
@@ -17,7 +17,7 @@ namespace linker.tunnel.transport
     {
         public string Name => "UdpPortMap";
 
-        public string Label => "UDP、端口映射";
+        public string Label => "UDP、端口映射，无ssl";
 
         public TunnelProtocolType ProtocolType => TunnelProtocolType.Udp;
 
diff --git a/linker.web/src/views/devices/Tuntap.vue b/linker.web/src/views/devices/Tuntap.vue
index 8cc98893..865f5571 100644
--- a/linker.web/src/views/devices/Tuntap.vue
+++ b/linker.web/src/views/devices/Tuntap.vue
@@ -55,6 +55,14 @@
                             </template>
                         </div>
                     </template>
+                    <template v-if="showDelay">
+                        <template v-if="tuntap.list[scope.row.MachineId].Delay>=0 && tuntap.list[scope.row.MachineId].Delay<=100">
+                            <div class="delay green">{{ tuntap.list[scope.row.MachineId].Delay }}ms</div>
+                        </template>
+                        <template>
+                            <div class="delay yellow">{{ tuntap.list[scope.row.MachineId].Delay }}ms</div>
+                        </template>
+                    </template>
                 </div>
             </div> 
         </template>
@@ -65,12 +73,17 @@ import { stopTuntap, runTuntap } from '@/apis/tuntap';
 import { ElMessage } from 'element-plus';
 import { useTuntap } from './tuntap';
 import {Loading} from '@element-plus/icons-vue'
+import { injectGlobalData } from '@/provide';
+import { computed } from 'vue';
 export default {
     emits: ['edit','refresh'],
     components:{Loading},
     setup(props, { emit }) {
 
         const tuntap = useTuntap();
+        const globalData = injectGlobalData();
+
+        const showDelay = computed(()=>globalData.value.config.Running.Tuntap.ShowDelay);
         const handleTuntap = (tuntap) => {
             const fn = tuntap.running ? stopTuntap (tuntap.MachineId) : runTuntap(tuntap.MachineId);
             tuntap.loading = true;
@@ -88,7 +101,7 @@ export default {
         }
        
         return {
-            tuntap,  handleTuntap, handleTuntapIP,handleTuntapRefresh
+            tuntap,showDelay,  handleTuntap, handleTuntapIP,handleTuntapRefresh
         }
     }
 }
@@ -119,5 +132,7 @@ export default {
         -webkit-text-fill-color:hsla(0,0%,100%,0);
     }
 }
+.delay{position: absolute;right:0;bottom:0;line-height:normal}
+
 
 </style>
\ No newline at end of file
diff --git a/linker.web/src/views/devices/TuntapEdit.vue b/linker.web/src/views/devices/TuntapEdit.vue
index b5ef64d5..86d64837 100644
--- a/linker.web/src/views/devices/TuntapEdit.vue
+++ b/linker.web/src/views/devices/TuntapEdit.vue
@@ -3,26 +3,41 @@
         <div>
             <el-form ref="ruleFormRef" :model="state.ruleForm" :rules="state.rules" label-width="140">
                 <el-form-item prop="gateway" style="margin-bottom:0">
-                    赐予此设备IP，其它可以通过这个IP访问
+                    赐予此设备IP，其它设备可通过此IP访问
                 </el-form-item>
                 <el-form-item label="此设备的虚拟网卡IP" prop="IP">
-                    <el-input v-model="state.ruleForm.IP" style="width:12rem" /> / <el-input @change="handlePrefixLengthChange" v-model="state.ruleForm.PrefixLength" style="width:4rem" />
+                    <el-input v-model="state.ruleForm.IP" style="width:14rem" />
+                    <span>/</span>
+                    <el-input @change="handlePrefixLengthChange" v-model="state.ruleForm.PrefixLength" style="width:4rem" />
+                    <span style="width: 3rem;"></span>
+                    <el-checkbox v-model="state.ruleForm.ShowDelay" label="显示延迟" size="large" />
+                    <el-popover
+                        placement="top" title="提示" :width="400" trigger="hover"
+                        content="在测试延迟时，如果未连接，将自动去打洞连接，当你有一百个设备时，每个设备都同时去与其它99台设备连接，这数据量不小，所以尽量不要个设备都勾选"
+                        >
+                        <template #reference>
+                            <el-checkbox v-model="state.ruleForm.AutoConnect" label="自动连接？" size="large" />
+                        </template>
+                    </el-popover>
+                   
                 </el-form-item>
                 <el-form-item prop="upgrade" style="margin-bottom:0">
                     <el-checkbox v-model="state.ruleForm.Upgrade" label="我很懂，我要使用高级功能(点对网和网对网)" size="large" />
                 </el-form-item>
                 <div class="upgrade-wrap" v-if="state.ruleForm.Upgrade">
-                    <el-form-item prop="gateway" style="margin-bottom:0">
-                        <el-checkbox v-model="state.ruleForm.Gateway" label="此设备在路由器(网对网，将对方的 局域网IP 转发到对方)" size="large" />
+                    <el-form-item prop="gateway" style="border-bottom: 1px solid #ddd;margin-bottom:0">
+                        <el-checkbox v-model="state.ruleForm.Gateway" label="此设备在路由器(网对网)" size="large" />
                     </el-form-item>
-                    <el-form-item prop="gateway" style="margin-bottom:0">
-                        <span class="yellow">此设备可以用NAT转发，那填写局域网IP，其它交给NAT(linux、macos、win10+)</span>
+                    <el-form-item prop="nat" style="margin-bottom:0">
+                        <span class="yellow">此设备能使用NAT转发，只需局域网IP，剩下的交给NAT(linux、macos、win10+)</span>
                     </el-form-item>
-                    <el-form-item label="此设备局域网IP" prop="LanIP">
+                    <el-form-item label="此设备局域网IP" prop="LanIP" style="border-bottom: 1px solid #ddd;margin-bottom:0">
                         <template v-for="(item, index) in state.ruleForm.LanIPs" :key="index">
                             <div class="flex" style="margin-bottom:.6rem">
                                 <div class="flex-1">
-                                    <el-input v-model="state.ruleForm.LanIPs[index]" style="width:12rem" /> / <el-input @change="handleMaskChange(index)" v-model="state.ruleForm.Masks[index]" style="width:4rem" />
+                                    <el-input v-model="state.ruleForm.LanIPs[index]" style="width:14rem" />
+                                    <span>/</span>
+                                    <el-input @change="handleMaskChange(index)" v-model="state.ruleForm.Masks[index]" style="width:4rem" />
                                 </div>
                                 <div class="pdl-10">
                                     <el-button type="danger" @click="handleDel(index)"><el-icon><Delete /></el-icon></el-button>
@@ -31,15 +46,15 @@
                             </div>
                         </template>
                     </el-form-item>
-                    <el-form-item prop="gateway" style="margin-bottom:0">
-                        <span class="yellow">此设备不能用NAT转发，那可以使用系统端口转发实现类似的效果(仅windows)</span>
+                    <el-form-item prop="forward" style="margin-bottom:0">
+                        <span class="yellow">此设备无法使用NAT转发，或只想使用端口转发</span>
                     </el-form-item>
-                    <el-form-item label="端口转发" prop="foreards">
+                    <el-form-item label="端口转发" prop="forwards">
                         <template v-for="(item, index) in state.ruleForm.Forwards" :key="index">
                             <div class="flex" style="margin-bottom:.6rem">
                                 <div class="flex-1">
                                     <el-input v-model="item.ListenAddr" style="width:7rem" readonly /> : <el-input @change="handleForwardChange(index)" v-model="item.ListenPort" style="width:6rem" />
-                                     -> <el-input v-model="item.ConnectAddr" style="width:12rem" /> : <el-input @change="handleForwardChange(index)" v-model="item.ConnectPort" style="width:6rem" />
+                                     -> <el-input v-model="item.ConnectAddr" style="width:14rem" /> : <el-input @change="handleForwardChange(index)" v-model="item.ConnectPort" style="width:6rem" />
                                 </div>
                                 <div class="pdl-10">
                                     
@@ -85,6 +100,8 @@ export default {
                 Masks: tuntap.value.current.Masks.slice(0),
                 PrefixLength:tuntap.value.current.PrefixLength || 24,
                 Gateway: tuntap.value.current.Gateway,
+                ShowDelay: tuntap.value.current.ShowDelay,
+                AutoConnect: tuntap.value.current.AutoConnect,
                 Upgrade: tuntap.value.current.Upgrade,
 
                 Forwards:tuntap.value.current.Forwards.length == 0 ? [
@@ -144,6 +161,8 @@ export default {
             json.Masks = masks;
             json.PrefixLength = +state.ruleForm.PrefixLength;
             json.Gateway = state.ruleForm.Gateway;
+            json.ShowDelay = state.ruleForm.ShowDelay;
+            json.AutoConnect = state.ruleForm.AutoConnect;
             json.Upgrade = state.ruleForm.Upgrade;
             json.Forwards = state.ruleForm.Forwards;
             json.Forwards.forEach(c=>{
@@ -185,6 +204,6 @@ export default {
 .upgrade-wrap{
     border:1px solid #ddd;
     margin-bottom:2rem
-    padding:1rem 0;
+    padding:0 0 1rem 0;
 }
 </style>
\ No newline at end of file
diff --git a/linker.web/src/views/settings/Transports.vue b/linker.web/src/views/settings/Transports.vue
index 4eeed785..5cfb8314 100644
--- a/linker.web/src/views/settings/Transports.vue
+++ b/linker.web/src/views/settings/Transports.vue
@@ -55,7 +55,6 @@ export default {
             bufferSize:globalData.value.bufferSize
         });
         watch(()=>globalData.value.config.Running.Tunnel.Transports,()=>{
-            console.log(globalData.value.config.Running.Tunnel.Transports);
             state.list = globalData.value.config.Running.Tunnel.Transports.sort((a,b)=>a.Order - b.Order);
         });
 
diff --git a/linker/plugins/relay/RelayTransfer.cs b/linker/plugins/relay/RelayTransfer.cs
index 3f1e7862..100a3058 100644
--- a/linker/plugins/relay/RelayTransfer.cs
+++ b/linker/plugins/relay/RelayTransfer.cs
@@ -155,7 +155,12 @@ namespace linker.plugins.relay
                 var servers = running.Data.Relay.Servers
                     .Where(c => c.Disabled == false)
                     .Where(c => string.IsNullOrWhiteSpace(c.Host) == false)
-                    .Where(c => c.Delay >= 0).OrderBy(c => c.Delay);
+                    .Where(c => c.Delay >= 0);
+                if (running.Data.Relay.ByRelay)
+                {
+                    servers = servers.OrderBy(c => c.Delay);
+                }
+
                 foreach (RelayServerInfo item in servers)
                 {
                     ITransport transport = transports.FirstOrDefault(c => c.Type == item.RelayType);
@@ -278,43 +283,20 @@ namespace linker.plugins.relay
         {
             try
             {
-                var tasks = running.Data.Relay.Servers.Select(c =>
+                foreach (var server in running.Data.Relay.Servers)
                 {
-                    try
-                    {
-                        ITransport transport = transports.FirstOrDefault(d => d.Type == c.RelayType);
-                        if (transport == null) return null;
+                    ITransport transport = transports.FirstOrDefault(d => d.Type == server.RelayType);
+                    if (transport == null) continue;
 
-                        IPEndPoint server = NetworkHelper.GetEndPoint(c.Host, 3478);
-
-                        return new TestInfo
-                        {
-                            Server = c,
-                            Task = transport.RelayTestAsync(new RelayTestInfo
-                            {
-                                MachineId = fileConfig.Data.Client.Id,
-                                SecretKey = c.SecretKey,
-                                Server = server,
-                            })
-                        };
-                    }
-                    catch (Exception)
+                    IPEndPoint serverEP = NetworkHelper.GetEndPoint(server.Host, 3478);
+                    RelayTestResultInfo result = await transport.RelayTestAsync(new RelayTestInfo
                     {
-                    }
-                    return null;
-                });
-
-                try
-                {
-                    await Task.WhenAll(tasks.Where(c => c != null).Select(c => c.Task)).WaitAsync(TimeSpan.FromMilliseconds(5000)).ConfigureAwait(false);
-                    foreach (var item in tasks.Where(c => c != null))
-                    {
-                        item.Server.Delay = item.Task.Result.Delay;
-                        item.Server.Available = item.Task.Result.Available;
-                    }
-                }
-                catch (Exception)
-                {
+                        MachineId = fileConfig.Data.Client.Id,
+                        SecretKey = server.SecretKey,
+                        Server = serverEP,
+                    });
+                    server.Delay = result.Delay;
+                    server.Available = result.Available;
                 }
             }
             catch (Exception)
diff --git a/linker/plugins/relay/transport/TransportSelfHost.cs b/linker/plugins/relay/transport/TransportSelfHost.cs
index aed40040..23d40875 100644
--- a/linker/plugins/relay/transport/TransportSelfHost.cs
+++ b/linker/plugins/relay/transport/TransportSelfHost.cs
@@ -228,7 +228,7 @@ namespace linker.plugins.relay.transport
             {
                 Socket socket = new Socket(relayTestInfo.Server.AddressFamily, SocketType.Stream, System.Net.Sockets.ProtocolType.Tcp);
                 socket.KeepAlive();
-                await socket.ConnectAsync(relayTestInfo.Server).WaitAsync(TimeSpan.FromMilliseconds(500)).ConfigureAwait(false);
+                await socket.ConnectAsync(relayTestInfo.Server).WaitAsync(TimeSpan.FromMilliseconds(1000)).ConfigureAwait(false);
 
                 connection = await messengerResolver.BeginReceiveClient(socket);
 
@@ -249,7 +249,6 @@ namespace linker.plugins.relay.transport
             }
             catch (Exception)
             {
-
             }
             finally
             {
diff --git a/linker/plugins/tunnel/TunnelApiController.cs b/linker/plugins/tunnel/TunnelApiController.cs
index e3aab9b8..d8070cfb 100644
--- a/linker/plugins/tunnel/TunnelApiController.cs
+++ b/linker/plugins/tunnel/TunnelApiController.cs
@@ -46,17 +46,16 @@ namespace linker.plugins.tunnel
         /// <returns></returns>
         public TunnelListInfo Get(ApiControllerParamsInfo param)
         {
-            uint hashCode = uint.Parse(param.Content);
-            uint _hashCode = tunnelConfigTransfer.ConfigVersion;
-            if (_hashCode != hashCode)
+            ulong hashCode = ulong.Parse(param.Content);
+            if (tunnelConfigTransfer.Version.Eq(hashCode,out ulong version))
             {
                 return new TunnelListInfo
                 {
                     List = tunnelConfigTransfer.Config,
-                    HashCode = _hashCode
+                    HashCode = version
                 };
             }
-            return new TunnelListInfo { HashCode = _hashCode };
+            return new TunnelListInfo { HashCode = version };
         }
         /// <summary>
         /// 刷新隧道信息
@@ -145,7 +144,7 @@ namespace linker.plugins.tunnel
         public sealed class TunnelListInfo
         {
             public ConcurrentDictionary<string, TunnelTransportRouteLevelInfo> List { get; set; }
-            public uint HashCode { get; set; }
+            public ulong HashCode { get; set; }
         }
 
     }
diff --git a/linker/plugins/tunnel/TunnelConfigTransfer.cs b/linker/plugins/tunnel/TunnelConfigTransfer.cs
index d41e4c98..e755ab12 100644
--- a/linker/plugins/tunnel/TunnelConfigTransfer.cs
+++ b/linker/plugins/tunnel/TunnelConfigTransfer.cs
@@ -24,11 +24,8 @@ namespace linker.plugins.tunnel
         private readonly TransportTcpPortMap transportTcpPortMap;
         private readonly TransportUdpPortMap transportUdpPortMap;
 
-
-        private uint version = 0;
-        public uint ConfigVersion => version;
-        private ConcurrentDictionary<string, TunnelTransportRouteLevelInfo> configs = new ConcurrentDictionary<string, TunnelTransportRouteLevelInfo>();
-        public ConcurrentDictionary<string, TunnelTransportRouteLevelInfo> Config => configs;
+        public VersionManager Version { get; } = new VersionManager();
+        public ConcurrentDictionary<string, TunnelTransportRouteLevelInfo> Config { get; } = new ConcurrentDictionary<string, TunnelTransportRouteLevelInfo>();
 
         public TunnelConfigTransfer(FileConfig config, RunningConfig running, ClientSignInState clientSignInState, MessengerSender messengerSender, RunningConfigTransfer runningConfigTransfer, ITunnelAdapter tunnelAdapter, TransportTcpPortMap transportTcpPortMap, TransportUdpPortMap transportUdpPortMap)
         {
@@ -108,8 +105,8 @@ namespace linker.plugins.tunnel
         /// <returns></returns>
         public TunnelTransportRouteLevelInfo OnRemoteRouteLevel(TunnelTransportRouteLevelInfo tunnelTransportFileConfigInfo)
         {
-            configs.AddOrUpdate(tunnelTransportFileConfigInfo.MachineId, tunnelTransportFileConfigInfo, (a, b) => tunnelTransportFileConfigInfo);
-            Interlocked.Increment(ref version);
+            Config.AddOrUpdate(tunnelTransportFileConfigInfo.MachineId, tunnelTransportFileConfigInfo, (a, b) => tunnelTransportFileConfigInfo);
+            Version.Add();
             return GetLocalRouteLevel();
         }
         private void GetRemoteRouteLevel()
@@ -128,11 +125,11 @@ namespace linker.plugins.tunnel
                     List<TunnelTransportRouteLevelInfo> list = MemoryPackSerializer.Deserialize<List<TunnelTransportRouteLevelInfo>>(result.Result.Data.Span);
                     foreach (var item in list)
                     {
-                        configs.AddOrUpdate(item.MachineId, item, (a, b) => item);
+                        Config.AddOrUpdate(item.MachineId, item, (a, b) => item);
                     }
                     TunnelTransportRouteLevelInfo config = GetLocalRouteLevel();
-                    configs.AddOrUpdate(config.MachineId, config, (a, b) => config);
-                    Interlocked.Increment(ref version);
+                    Config.AddOrUpdate(config.MachineId, config, (a, b) => config);
+                    Version.Add();
                 }
             });
         }
@@ -145,7 +142,7 @@ namespace linker.plugins.tunnel
                 RouteLevelPlus = running.Data.Tunnel.RouteLevelPlus,
                 PortMapWan = running.Data.Tunnel.PortMapWan,
                 PortMapLan = running.Data.Tunnel.PortMapLan,
-                NeedReboot = reboot
+                NeedReboot = false
             };
         }
         private void InitRouteLevel()
@@ -157,7 +154,6 @@ namespace linker.plugins.tunnel
         }
 
 
-        bool reboot = false;
         private void TestQuic()
         {
             if (OperatingSystem.IsWindows())
@@ -172,7 +168,6 @@ namespace linker.plugins.tunnel
                             File.Move("msquic.dll", "msquic.dll.temp", true);
                             File.Move("msquic-openssl.dll", "msquic.dll", true);
 
-                            reboot = true;
                             Environment.Exit(1);
                         }
                     }
diff --git a/linker/plugins/tuntap/TuntapApiController.cs b/linker/plugins/tuntap/TuntapApiController.cs
index b49016d6..37c688d2 100644
--- a/linker/plugins/tuntap/TuntapApiController.cs
+++ b/linker/plugins/tuntap/TuntapApiController.cs
@@ -46,17 +46,16 @@ namespace linker.plugins.tuntap
         /// <returns></returns>
         public TuntabListInfo Get(ApiControllerParamsInfo param)
         {
-            uint hashCode = uint.Parse(param.Content);
-            uint _hashCode = tuntapTransfer.InfosVersion;
-            if (_hashCode != hashCode)
+            ulong hashCode = ulong.Parse(param.Content);
+            if (tuntapTransfer.Version.Eq(hashCode, out ulong version))
             {
                 return new TuntabListInfo
                 {
                     List = tuntapTransfer.Infos,
-                    HashCode = _hashCode
+                    HashCode = version
                 };
             }
-            return new TuntabListInfo { HashCode = _hashCode };
+            return new TuntabListInfo { HashCode = version };
         }
         /// <summary>
         /// 刷新网卡信息
@@ -147,7 +146,7 @@ namespace linker.plugins.tuntap
         public sealed class TuntabListInfo
         {
             public ConcurrentDictionary<string, TuntapInfo> List { get; set; }
-            public uint HashCode { get; set; }
+            public ulong HashCode { get; set; }
         }
     }
 }
diff --git a/linker/plugins/tuntap/TuntapTransfer.cs b/linker/plugins/tuntap/TuntapTransfer.cs
index f87a817e..d848b258 100644
--- a/linker/plugins/tuntap/TuntapTransfer.cs
+++ b/linker/plugins/tuntap/TuntapTransfer.cs
@@ -12,6 +12,7 @@ using linker.plugins.client;
 using linker.plugins.messenger;
 using linker.plugins.tuntap.config;
 using linker.tun;
+using linker.tunnel.connection;
 
 namespace linker.plugins.tuntap
 {
@@ -25,16 +26,15 @@ namespace linker.plugins.tuntap
         private readonly LinkerTunDeviceAdapter linkerTunDeviceAdapter;
 
         private string deviceName = "linker";
-        private uint operating = 0;
         private List<IPAddress> routeIps = new List<IPAddress>();
 
-        private uint infosVersion = 0;
-        public uint InfosVersion => infosVersion;
-
+        public VersionManager Version { get; } = new VersionManager();
         private readonly ConcurrentDictionary<string, TuntapInfo> tuntapInfos = new ConcurrentDictionary<string, TuntapInfo>();
         public ConcurrentDictionary<string, TuntapInfo> Infos => tuntapInfos;
 
-        public TuntapStatus Status => operating == 1 ? TuntapStatus.Operating : (TuntapStatus)(byte)linkerTunDeviceAdapter.Status;
+
+        private OperatingManager operatingManager = new OperatingManager();
+        public TuntapStatus Status => operatingManager.Operating ? TuntapStatus.Operating : (TuntapStatus)(byte)linkerTunDeviceAdapter.Status;
 
         public TuntapTransfer(MessengerSender messengerSender, ClientSignInState clientSignInState, LinkerTunDeviceAdapter linkerTunDeviceAdapter, FileConfig config, TuntapProxy tuntapProxy, RunningConfig runningConfig)
         {
@@ -59,6 +59,7 @@ namespace linker.plugins.tuntap
                 NetworkHelper.GetRouteLevel(config.Data.Client.Server, out routeIps);
                 NotifyConfig();
                 CheckTuntapStatusTask();
+                PingTask();
                 if (runningConfig.Data.Tuntap.Running)
                 {
                     Setup();
@@ -71,7 +72,7 @@ namespace linker.plugins.tuntap
         /// </summary>
         public void Setup()
         {
-            if (Interlocked.CompareExchange(ref operating, 1, 0) == 1)
+            if (operatingManager.StartOperation() == false)
             {
                 return;
             }
@@ -111,7 +112,7 @@ namespace linker.plugins.tuntap
         }
         private void SetupAfter()
         {
-            Interlocked.Exchange(ref operating, 0);
+            operatingManager.StopOperation();
             NotifyConfig();
         }
         private void SetupSuccess()
@@ -127,7 +128,7 @@ namespace linker.plugins.tuntap
         /// </summary>
         public void Shutdown()
         {
-            if (Interlocked.CompareExchange(ref operating, 1, 0) == 1)
+            if (operatingManager.StartOperation() == false)
             {
                 return;
             }
@@ -155,7 +156,7 @@ namespace linker.plugins.tuntap
         }
         private void ShutdownAfter()
         {
-            Interlocked.Exchange(ref operating, 0);
+            operatingManager.StopOperation();
             NotifyConfig();
         }
         private void ShutdownSuccess()
@@ -188,6 +189,8 @@ namespace linker.plugins.tuntap
                 runningConfig.Data.Tuntap.Masks = info.Masks;
                 runningConfig.Data.Tuntap.PrefixLength = info.PrefixLength;
                 runningConfig.Data.Tuntap.Gateway = info.Gateway;
+                runningConfig.Data.Tuntap.ShowDelay = info.ShowDelay;
+                runningConfig.Data.Tuntap.AutoConnect = info.AutoConnect;
                 runningConfig.Data.Tuntap.Upgrade = info.Upgrade;
                 runningConfig.Data.Tuntap.Forwards = info.Forwards;
                 runningConfig.Data.Update();
@@ -214,7 +217,7 @@ namespace linker.plugins.tuntap
             {
                 DelRoute();
                 tuntapInfos.AddOrUpdate(info.MachineId, info, (a, b) => info);
-                Interlocked.Increment(ref infosVersion);
+                Version.Add();
                 AddRoute();
             });
 
@@ -240,7 +243,7 @@ namespace linker.plugins.tuntap
                     }
                     AddRoute();
                 }
-                Interlocked.Increment(ref infosVersion);
+                Version.Add();
             });
         }
         /// <summary>
@@ -260,9 +263,12 @@ namespace linker.plugins.tuntap
                 Error = linkerTunDeviceAdapter.Error,
                 Error1 = linkerTunDeviceAdapter.Error1,
                 SystemInfo = $"{System.Runtime.InteropServices.RuntimeInformation.OSDescription} {(string.IsNullOrWhiteSpace(Environment.GetEnvironmentVariable("SNLTTY_LINKER_IS_DOCKER")) == false ? "Docker" : "")}",
-                Gateway = runningConfig.Data.Tuntap.Gateway,
-                Upgrade = runningConfig.Data.Tuntap.Upgrade,
+
                 Forwards = runningConfig.Data.Tuntap.Forwards,
+                Switch = (runningConfig.Data.Tuntap.Gateway ? TuntapSwitch.Gateway : 0)
+                 | (runningConfig.Data.Tuntap.Upgrade ? TuntapSwitch.Upgrade : 0)
+                 | (runningConfig.Data.Tuntap.ShowDelay ? TuntapSwitch.ShowDelay : 0)
+                 | (runningConfig.Data.Tuntap.AutoConnect ? TuntapSwitch.AutoConnect : 0)
             };
             if (runningConfig.Data.Tuntap.Masks.Length != runningConfig.Data.Tuntap.LanIPs.Length)
             {
@@ -404,7 +410,7 @@ namespace linker.plugins.tuntap
                     await Task.Delay(15000).ConfigureAwait(false);
                     try
                     {
-                        if (runningConfig.Data.Tuntap.Running && OperatingSystem.IsWindows() && operating == 0)
+                        if (runningConfig.Data.Tuntap.Running && OperatingSystem.IsWindows() && operatingManager.Operating == false)
                         {
                             await CheckInterface().ConfigureAwait(false);
                         }
@@ -419,18 +425,64 @@ namespace linker.plugins.tuntap
         {
             NetworkInterface networkInterface = NetworkInterface.GetAllNetworkInterfaces().FirstOrDefault(c => c.Name == deviceName);
 
-            if (networkInterface == null || networkInterface.OperationalStatus != OperationalStatus.Up && operating == 0)
+            if (networkInterface == null || networkInterface.OperationalStatus != OperationalStatus.Up && operatingManager.Operating == false)
             {
                 LoggerHelper.Instance.Error($"tuntap inerface {deviceName} is {networkInterface?.OperationalStatus ?? OperationalStatus.Unknown}, restarting");
                 Shutdown();
                 await Task.Delay(5000).ConfigureAwait(false);
 
                 networkInterface = NetworkInterface.GetAllNetworkInterfaces().FirstOrDefault(c => c.Name == deviceName);
-                if (networkInterface == null || networkInterface.OperationalStatus != OperationalStatus.Up && operating == 0)
+                if (networkInterface == null || networkInterface.OperationalStatus != OperationalStatus.Up && operatingManager.Operating == false)
                 {
                     Setup();
                 }
             }
         }
+
+
+        private void PingTask()
+        {
+            Task.Run(async () =>
+            {
+                while (true)
+                {
+                    if (Status == TuntapStatus.Running && runningConfig.Data.Tuntap.ShowDelay)
+                    {
+                        var items = tuntapInfos.Values.Where(c => c.IP != null && c.IP.Equals(IPAddress.Any) == false);
+                        if (runningConfig.Data.Tuntap.AutoConnect == false)
+                        {
+                            var connections = tuntapProxy.GetConnections();
+                            items = items.Where(c => (connections.TryGetValue(c.MachineId, out ITunnelConnection connection) && connection.Connected) || c.MachineId == config.Data.Client.Id);
+                        }
+
+
+                        var tasks = items.Select(c =>
+                         {
+                             Ping ping = new Ping();
+                             return new PingTaskInfo
+                             {
+                                 TuntapInfo = c,
+                                 Ping = ping,
+                                 Task = ping.SendPingAsync(c.IP, 1000)
+                             };
+                         });
+                        await Task.WhenAll(tasks.Select(c => c.Task));
+                        foreach (var item in tasks.Where(c => c.Task.Result != null))
+                        {
+                            item.TuntapInfo.Delay = item.Task.Result.Status == IPStatus.Success ? (int)item.Task.Result.RoundtripTime : -1;
+                            item.Ping.Dispose();
+                        }
+                        Version.Add();
+                    }
+                    await Task.Delay(3000);
+                }
+            });
+        }
+        public sealed class PingTaskInfo
+        {
+            public TuntapInfo TuntapInfo { get; set; }
+            public Ping Ping { get; set; }
+            public Task<PingReply> Task { get; set; }
+        }
     }
 }
diff --git a/linker/plugins/tuntap/config/config.cs b/linker/plugins/tuntap/config/config.cs
index 97e0f44f..1bb1d94b 100644
--- a/linker/plugins/tuntap/config/config.cs
+++ b/linker/plugins/tuntap/config/config.cs
@@ -4,15 +4,18 @@ using System.Net;
 
 namespace linker.plugins.tuntap.config
 {
-    public sealed class TuntapConfigInfo
+    [MemoryPackable]
+    public sealed partial class TuntapConfigInfo
     {
         /// <summary>
         /// 网卡IP
         /// </summary>
+        [MemoryPackAllowSerialize]
         public IPAddress IP { get; set; } = IPAddress.Any;
         /// <summary>
         /// 局域网IP列表
         /// </summary>
+        [MemoryPackAllowSerialize]
         public IPAddress[] LanIPs { get; set; } = Array.Empty<IPAddress>();
         /// <summary>
         /// 局域网掩码列表，与IP列表一一对应
@@ -33,9 +36,19 @@ namespace linker.plugins.tuntap.config
         /// </summary>
         public bool Gateway { get; set; }
         /// <summary>
+        /// 显示延迟
+        /// </summary>
+        public bool ShowDelay { get; set; }
+        /// <summary>
+        /// 自动连接
+        /// </summary>
+        public bool AutoConnect { get; set; }
+        /// <summary>
         /// 使用高级功能
         /// </summary>
         public bool Upgrade { get; set; }
+
+
         /// <summary>
         /// 端口转发列表
         /// </summary>
@@ -103,6 +116,12 @@ namespace linker.plugins.tuntap.config
 
         [MemoryPackAllowSerialize]
         public IPAddress IP { get; set; }
+        /// <summary>
+        /// 前缀长度
+        /// </summary>
+        public byte PrefixLength { get; set; } = 24;
+
+
         /// <summary>
         /// 局域网IP
         /// </summary>
@@ -115,11 +134,6 @@ namespace linker.plugins.tuntap.config
         public int[] Masks { get; set; } = Array.Empty<int>();
 
 
-        /// <summary>
-        /// 前缀长度
-        /// </summary>
-        public byte PrefixLength { get; set; } = 24;
-
         /// <summary>
         /// 网卡安装错误
         /// </summary>
@@ -132,18 +146,120 @@ namespace linker.plugins.tuntap.config
         /// 系统信息
         /// </summary>
         public string SystemInfo { get; set; }
-        /// <summary>
-        /// 是否网关
-        /// </summary>
-        public bool Gateway { get; set; }
-        /// <summary>
-        /// 使用高级功能
-        /// </summary>
-        public bool Upgrade { get; set; }
+
         /// <summary>
         /// 端口转发列表
         /// </summary>
         public List<TuntapForwardInfo> Forwards { get; set; } = new List<TuntapForwardInfo>();
+
+        /// <summary>
+        /// 延迟ms
+        /// </summary>
+        public int Delay { get; set; } = -1;
+
+        /// <summary>
+        /// 开关，多个bool集合
+        /// </summary>
+        public TuntapSwitch Switch { get; set; }
+
+        /// <summary>
+        /// 是否网关
+        /// </summary>
+        [MemoryPackIgnore]
+        public bool Gateway
+        {
+            get
+            {
+                return (Switch & TuntapSwitch.Gateway) == TuntapSwitch.Gateway;
+            }
+            set
+            {
+                if (value)
+                {
+                    Switch |= TuntapSwitch.Gateway;
+                }
+                else
+                {
+                    Switch &= ~TuntapSwitch.Gateway;
+                }
+            }
+        }
+        /// <summary>
+        /// 显示延迟
+        /// </summary>
+        [MemoryPackIgnore]
+        public bool ShowDelay
+        {
+            get
+            {
+                return (Switch & TuntapSwitch.ShowDelay) == TuntapSwitch.ShowDelay;
+            }
+            set
+            {
+                if (value)
+                {
+                    Switch |= TuntapSwitch.ShowDelay;
+                }
+                else
+                {
+                    Switch &= ~TuntapSwitch.ShowDelay;
+                }
+            }
+        }
+        /// <summary>
+        /// 自动连接
+        /// </summary>
+        [MemoryPackIgnore]
+        public bool AutoConnect
+        {
+            get
+            {
+                return (Switch & TuntapSwitch.AutoConnect) == TuntapSwitch.AutoConnect;
+            }
+            set
+            {
+                if (value)
+                {
+                    Switch |= TuntapSwitch.AutoConnect;
+                }
+                else
+                {
+                    Switch &= ~TuntapSwitch.AutoConnect;
+                }
+            }
+        }
+        /// <summary>
+        /// 使用高级功能
+        /// </summary>
+        [MemoryPackIgnore]
+        public bool Upgrade
+        {
+            get
+            {
+                return (Switch & TuntapSwitch.Upgrade) == TuntapSwitch.Upgrade;
+            }
+            set
+            {
+                if (value)
+                {
+                    Switch |= TuntapSwitch.Upgrade;
+                }
+                else
+                {
+                    Switch &= ~TuntapSwitch.Upgrade;
+                }
+            }
+        }
+
+    }
+
+    [Flags]
+    public enum TuntapSwitch
+    {
+        Gateway = 1,
+        ShowDelay = 2,
+        Upgrade = 4,
+        AutoConnect = 8,
     }
 
 
diff --git a/linker/plugins/tuntap/proxy/TuntapProxy.cs b/linker/plugins/tuntap/proxy/TuntapProxy.cs
index 1787d3d7..55a1ebba 100644
--- a/linker/plugins/tuntap/proxy/TuntapProxy.cs
+++ b/linker/plugins/tuntap/proxy/TuntapProxy.cs
@@ -9,8 +9,6 @@ using System.Collections.Concurrent;
 using linker.plugins.tuntap.config;
 using linker.tun;
 using System.Buffers.Binary;
-using System.Net.Sockets;
-using System.Net;
 
 namespace linker.plugins.tuntap.proxy
 {
@@ -27,8 +25,7 @@ namespace linker.plugins.tuntap.proxy
         private readonly ConcurrentDictionary<string, ITunnelConnection> connections = new ConcurrentDictionary<string, ITunnelConnection>();
         private readonly ConcurrentDictionary<uint, ITunnelConnection> ipConnections = new ConcurrentDictionary<uint, ITunnelConnection>();
 
-        SemaphoreSlim slimGlobal = new SemaphoreSlim(1);
-        private readonly ConcurrentDictionary<string, SemaphoreSlim> dicLocks = new ConcurrentDictionary<string, SemaphoreSlim>();
+        private readonly OperatingMultipleManager operatingMultipleManager = new OperatingMultipleManager();
 
         public TuntapProxy(TunnelTransfer tunnelTransfer, RelayTransfer relayTransfer, RunningConfig runningConfig, FileConfig config, LinkerTunDeviceAdapter linkerTunDeviceAdapter)
         {
@@ -112,7 +109,6 @@ namespace linker.plugins.tuntap.proxy
             }
         }
 
-
         /// <summary>
         /// 设置IP，等下有连接进来，用IP匹配，才能知道这个连接是要连谁
         /// </summary>
@@ -179,23 +175,13 @@ namespace linker.plugins.tuntap.proxy
                 return connection;
             }
 
-            await slimGlobal.WaitAsync().ConfigureAwait(false);
-            if (dicLocks.TryGetValue(machineId, out SemaphoreSlim slim) == false)
+            if(operatingMultipleManager.StartOperation(machineId) ==false)
             {
-                slim = new SemaphoreSlim(1);
-                dicLocks.TryAdd(machineId, slim);
+                return null;
             }
-            slimGlobal.Release();
-
-            await slim.WaitAsync().ConfigureAwait(false);
 
             try
             {
-                if (connections.TryGetValue(machineId, out connection) && connection.Connected)
-                {
-                    return connection;
-                }
-
                 if (LoggerHelper.Instance.LoggerLevel <= LoggerTypes.DEBUG) LoggerHelper.Instance.Debug($"tuntap tunnel to {machineId}");
 
                 connection = await tunnelTransfer.ConnectAsync(machineId, "tuntap", TunnelProtocolType.None).ConfigureAwait(false);
@@ -210,7 +196,6 @@ namespace linker.plugins.tuntap.proxy
                     connection = await relayTransfer.ConnectAsync(config.Data.Client.Id, machineId, "tuntap").ConfigureAwait(false);
                     if (connection != null)
                     {
-                        //tunnelTransfer.StartBackground(machineId, "tuntap");
                         if (LoggerHelper.Instance.LoggerLevel <= LoggerTypes.DEBUG) LoggerHelper.Instance.Debug($"tuntap relay success,{connection.ToString()}");
                     }
                 }
@@ -224,7 +209,7 @@ namespace linker.plugins.tuntap.proxy
             }
             finally
             {
-                slim.Release();
+                operatingMultipleManager.StopOperation(machineId);
             }
             return connection;
         }