diff --git a/src/apis/index.ts b/src/apis/index.ts
index c677733..150c1ab 100644
--- a/src/apis/index.ts
+++ b/src/apis/index.ts
@@ -85,7 +85,7 @@ export const fetchBackendConfigAPI = () => {
 
 export const updateBackendConfigAPI = async (
   key: keyof Config,
-  value: Config[keyof Config],
+  value: Partial<Config[keyof Config]>,
   refetch: ResourceActions<Config | undefined>['refetch'],
 ) => {
   try {
diff --git a/src/components/ConfigTitle.tsx b/src/components/ConfigTitle.tsx
index 125092f..9db046d 100644
--- a/src/components/ConfigTitle.tsx
+++ b/src/components/ConfigTitle.tsx
@@ -4,7 +4,7 @@ export const ConfigTitle: ParentComponent<{ withDivider?: boolean }> = (
   props,
 ) => (
   <div
-    class="pb-4 text-lg font-semibold"
+    class="py-2 text-center text-lg font-semibold"
     classList={{
       divider: props.withDivider,
     }}
diff --git a/src/components/ConnectionsSettingsModal.tsx b/src/components/ConnectionsSettingsModal.tsx
index 808669b..a6670ea 100644
--- a/src/components/ConnectionsSettingsModal.tsx
+++ b/src/components/ConnectionsSettingsModal.tsx
@@ -237,9 +237,8 @@ export const ConnectionsSettingsModal = (props: {
                           tags.filter((tag) => tag.tagName !== tagName),
                         )
                       }
-                    >
-                      <IconX size={12} />
-                    </Button>
+                      icon={<IconX size={12} />}
+                    />
                   </div>
                 )}
               </For>
diff --git a/src/i18n/en.ts b/src/i18n/en.ts
index de7c80a..16fc9c0 100644
--- a/src/i18n/en.ts
+++ b/src/i18n/en.ts
@@ -97,4 +97,8 @@ export default {
   version: 'Version',
   expire: 'Expire',
   noExpire: 'Null',
+  enableTunDevice: 'Enable TUN Device',
+  tunModeStack: 'TUN Mode Stack',
+  tunDeviceName: 'TUN Device Name',
+  interfaceName: 'Interface Name',
 }
diff --git a/src/i18n/zh.ts b/src/i18n/zh.ts
index b65e5f6..ee06791 100644
--- a/src/i18n/zh.ts
+++ b/src/i18n/zh.ts
@@ -99,4 +99,8 @@ export default {
   version: '版本',
   expire: '到期时间',
   noExpire: '不限时',
+  enableTunDevice: '开启 TUN 转发',
+  tunModeStack: 'TUN 模式堆栈',
+  tunDeviceName: 'TUN 设备名称',
+  interfaceName: '接口名称',
 } satisfies Dict
diff --git a/src/pages/Config.tsx b/src/pages/Config.tsx
index 9980cbd..4da3150 100644
--- a/src/pages/Config.tsx
+++ b/src/pages/Config.tsx
@@ -178,11 +178,6 @@ const ConfigForm = () => {
     }
   })
 
-  const onSwitchEndpointClick = () => {
-    setSelectedEndpoint('')
-    navigate(ROUTES.Setup)
-  }
-
   return (
     <div class="flex flex-col gap-4">
       <select
@@ -201,11 +196,12 @@ const ConfigForm = () => {
         <For each={portList}>
           {(item) => (
             <div class="form-control">
-              <label class="label">
+              <label for={item.key} class="label">
                 <span class="label-text">{item.label}</span>
               </label>
 
               <input
+                id={item.key}
                 name={item.key}
                 type="number"
                 class="input input-bordered"
@@ -217,6 +213,89 @@ const ConfigForm = () => {
         </For>
       </form>
 
+      <div class="grid grid-cols-2 gap-2 sm:grid-cols-4">
+        <div class="form-control">
+          <label for="enable-tun-device" class="label gap-2">
+            <span class="label-text">{t('enableTunDevice')}</span>
+          </label>
+
+          <input
+            id="enable-tun-device"
+            type="checkbox"
+            class="toggle"
+            checked={configsData()?.tun.enable}
+            onChange={(e) =>
+              void updateBackendConfigAPI(
+                'tun',
+                { enable: e.target.checked },
+                refetch,
+              )
+            }
+          />
+        </div>
+
+        <div class="form-control">
+          <label for="tun-ip-stack" class="label gap-2">
+            <span class="label-text">{t('tunModeStack')}</span>
+          </label>
+
+          <select
+            id="tun-ip-stack"
+            class="select select-bordered flex-1"
+            value={configsData()?.tun.stack}
+            onChange={(e) =>
+              void updateBackendConfigAPI(
+                'tun',
+                { stack: e.target.value },
+                refetch,
+              )
+            }
+          >
+            <option>gVisor</option>
+            <option>System</option>
+            <option>LWIP</option>
+          </select>
+        </div>
+
+        <div class="form-control">
+          <label for="device-name" class="label gap-2">
+            <span class="label-text">{t('tunDeviceName')}</span>
+          </label>
+
+          <input
+            id="device-name"
+            class="input input-bordered min-w-0"
+            value={configsData()?.tun.device}
+            onChange={(e) =>
+              void updateBackendConfigAPI(
+                'tun',
+                { device: e.target.value },
+                refetch,
+              )
+            }
+          />
+        </div>
+
+        <div class="form-control">
+          <label for="interface-name" class="label gap-2">
+            <span class="label-text">{t('interfaceName')}</span>
+          </label>
+
+          <input
+            id="interface-name"
+            class="input input-bordered min-w-0"
+            value={configsData()?.['interface-name']}
+            onChange={(e) =>
+              void updateBackendConfigAPI(
+                'interface-name',
+                e.target.value,
+                refetch,
+              )
+            }
+          />
+        </div>
+      </div>
+
       <div class="grid grid-cols-2 gap-2 sm:grid-cols-3">
         <Button
           class="btn-primary"
@@ -258,7 +337,13 @@ const ConfigForm = () => {
           {t('restartCore')}
         </Button>
 
-        <Button class="btn-info" onClick={onSwitchEndpointClick}>
+        <Button
+          class="btn-info"
+          onClick={() => {
+            setSelectedEndpoint('')
+            navigate(ROUTES.Setup)
+          }}
+        >
           {t('switchEndpoint')}
         </Button>
       </div>
@@ -270,9 +355,9 @@ const ConfigForXd = () => {
   const { t } = useI18n()
 
   return (
-    <div class="grid grid-cols-2 place-items-center gap-4">
-      <div class="flex flex-col gap-4">
-        <div>
+    <div class="grid grid-cols-1 gap-4 sm:grid-cols-2">
+      <div class="flex flex-col gap-2">
+        <div class="flex flex-col items-center">
           <ConfigTitle>{t('autoSwitchTheme')}</ConfigTitle>
 
           <input
@@ -284,7 +369,7 @@ const ConfigForXd = () => {
         </div>
 
         <Show when={autoSwitchTheme()}>
-          <div class="flex flex-col gap-4">
+          <div class="flex flex-col gap-2">
             <div class="flex flex-col">
               <ConfigTitle>{t('favDayTheme')}</ConfigTitle>
 
@@ -322,7 +407,7 @@ const ConfigForXd = () => {
         </Show>
       </div>
 
-      <div>
+      <div class="flex flex-col items-center">
         <ConfigTitle>{t('useTwemoji')}</ConfigTitle>
 
         <input