diff --git a/src/App.tsx b/src/App.tsx
index e1b8774..1fe706f 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -18,7 +18,7 @@ import {
   EdgeMouseHandler
 } from '@xyflow/react';
 import '@xyflow/react/dist/style.css';
-import { AppNode, AppEdge, NodeData, EdgeData, NodeDataUpdate, EdgeDataUpdate, Settings } from './types/graph';
+import { AppNode, AppEdge, NodeData, EdgeData, NodeDataUpdate, EdgeDataUpdate, Settings, initialSettings, SettingsContext } from './types/graph';
 import CustomNode from './components/CustomNode';
 import NodeEditor from './components/NodeEditor';
 import EdgeEditor from './components/EdgeEditor'
@@ -29,10 +29,6 @@ import './App.css';
 
 const initialNodes: AppNode[] = [];
 const initialEdges: AppEdge[] = [];
-const initialSettings : Settings = {
-  listenPort: 38894,
-  mtu: 1420,
-};
 
 const nodeTypes : NodeTypes = {
   custom: CustomNode,
@@ -147,31 +143,33 @@ function FlowContent(): ReactNode {
 
   return (
     <div style={{ width: '100vw', height: '100vh' }}>
-      <ReactFlow
-        nodes={nodes}
-        edges={edges}
-        onNodesChange={onNodesChange}
-        onEdgesChange={onEdgesChange}
-        onConnect={onConnect}
-        onNodeDoubleClick={onNodeClick}
-        onEdgeDoubleClick={onEdgeClick}
-        nodeTypes={nodeTypes}
-        deleteKeyCode={["Delete"]}
-        fitView
-        isValidConnection={validateConnection}
-      >
-        <Background />
-        <Controls />
-        <MiniMap 
-        nodeColor={(n) => {
-          if (n.type === 'input') return 'blue';
-          return '#eee';
-        }} 
-        maskColor="rgba(0, 0, 0, 0.1)"
-        position="bottom-right" // 也可以是 top-right 等
-      />
-      </ReactFlow>
-
+      <SettingsContext value={settings}>
+        <ReactFlow
+          nodes={nodes}
+          edges={edges}
+          onNodesChange={onNodesChange}
+          onEdgesChange={onEdgesChange}
+          onConnect={onConnect}
+          onNodeDoubleClick={onNodeClick}
+          onEdgeDoubleClick={onEdgeClick}
+          nodeTypes={nodeTypes}
+          deleteKeyCode={["Delete"]}
+          fitView
+          isValidConnection={validateConnection}
+        >
+          <Background />
+          <Controls />
+          <MiniMap 
+          nodeColor={(n) => {
+            if (n.type === 'input') return 'blue';
+            return '#eee';
+          }} 
+          maskColor="rgba(0, 0, 0, 0.1)"
+          position="bottom-right" // 也可以是 top-right 等
+        />
+        </ReactFlow>
+      </SettingsContext>
+      
       <div className="toolbar">
         <div className="toolbar-group">
           <Toggle 
diff --git a/src/components/CustomNode.css b/src/components/CustomNode.css
index a4d2580..a04f184 100644
--- a/src/components/CustomNode.css
+++ b/src/components/CustomNode.css
@@ -2,9 +2,9 @@
   background: white;
   border: 2px solid #ddd;
   border-radius: 8px;
-  padding: 12px;
+  padding: 10px;
   min-width: 150px;
-  max-width: 240px; /* 限制节点不要太长 */
+  max-width: 300px; /* 限制节点不要太长 */
   box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
   transition: all 0.3s ease;
 }
@@ -30,26 +30,43 @@
 
 .node-header {
   display: flex;
-  justify-content: space-between;
-  align-items: center;
-  margin-bottom: 8px;
-  gap: 8px;
+  justify-content: center;
+  margin-bottom: 4px;
 }
 
 .node-label {
   font-weight: 600;
   color: #333;
   font-size: 12px; /* smaller title font */
-  flex: 0 0 100px; /* 固定宽度 100px，给按钮留更多空间 */
+  flex: 0 0 120px; /* 固定宽度 100px，给按钮留更多空间 */
   min-width: 0; /* allow truncation inside flex */
   overflow: hidden;
   white-space: nowrap;
   text-overflow: ellipsis;
+  text-align: center;
 }
 
 .node-info {
-  font-size: 12px;
-  color: #666;
+  font-size: 10px;
+  border-bottom: 1px solid #eee;
+  margin-bottom: 4px;
+}
+
+.info-item {
+  margin-bottom: 4px;
+}
+
+.info-item .label {
+  color: #999;
+}
+
+.info-item .value {
+  color: #333;
+}
+
+.node-actions {
+  display: flex;
+  gap: 10px;
 }
 
 .gen-btn {
@@ -59,10 +76,11 @@
   border-radius: 4px;
   padding: 1px 6px; /* 更小的按钮内边距 */
   cursor: pointer;
-  font-size: 10px; /* 更小的文字 */
+  font-size: 8px; /* 更小的文字 */
   line-height: 1;
   height: 20px;
   flex-shrink: 0;
+  flex: 1;
   opacity: 0.95;
   transition: transform 120ms ease, box-shadow 120ms ease, background-color 120ms ease, opacity 120ms ease;
   outline: none; /* remove default focus outline */
@@ -72,7 +90,6 @@
   opacity: 1;
 }
 
-
 .gen-btn:focus {
   outline: none;
 }
@@ -81,20 +98,4 @@
   transform: translateY(1px) scale(0.995);
   background-color: #0f62d6; /* slightly darker on press */
   box-shadow: inset 0 1px 2px rgba(0,0,0,0.12);
-}
-
-.info-item {
-  display: flex;
-  gap: 4px;
-  margin-bottom: 2px;
-}
-
-.info-item .label {
-  font-weight: 500;
-  color: #999;
-}
-
-.info-item .value {
-  color: #333;
-  font-family: monospace;
-}
+}
\ No newline at end of file
diff --git a/src/components/CustomNode.tsx b/src/components/CustomNode.tsx
index 225b1e0..46ff17f 100644
--- a/src/components/CustomNode.tsx
+++ b/src/components/CustomNode.tsx
@@ -1,6 +1,6 @@
-import { ReactNode } from 'react';
+import { ReactNode, useContext } from 'react';
 import { Handle, Position, NodeProps } from '@xyflow/react';
-import { AppNode } from '../types/graph';
+import { AppNode, SettingsContext } from '../types/graph';
 import './CustomNode.css';
 
 export default function CustomNode({ 
@@ -10,11 +10,38 @@ export default function CustomNode({
   const handleGenerate = (e: React.MouseEvent) => {
     e.stopPropagation();
   };
+
+  const settings = useContext(SettingsContext);
   
   return (
     <div className={`custom-node ${selected ? 'selected' : ''}`}>
       <div className="node-header">
-        <span className="node-label" title={data.label}>{data.label}</span>
+        <label className="node-label">{data.label}</label>
+      </div>
+
+      <div className='node-info'>
+        {settings.ipv4Subnet && (
+          <div className="info-item">
+            <span className="label">IPv4地址：</span>
+            <span className="value">{data.ipv4Address || "未设置"}</span>
+          </div>
+        )}
+        
+        {settings.ipv6Subnet && (
+          <div className="info-item">
+            <span className="label">IPv6地址：</span>
+            <span className="value">{data.ipv6Address || "未设置"}</span>
+          </div>
+        )}
+
+        {(!settings.ipv4Subnet && !settings.ipv6Subnet) && (
+          <div className="info-item">
+            <span className="label">未设置任何子网，请在设置中设置</span>
+          </div>
+        )}
+      </div>
+
+      <div className="node-actions">
         <button className="gen-btn" onClick={handleGenerate} onDoubleClick={e => e.stopPropagation()}>生成配置</button>
       </div>
 
diff --git a/src/components/FormEditor.css b/src/components/FormEditor.css
index 1cf26c3..ee2486d 100644
--- a/src/components/FormEditor.css
+++ b/src/components/FormEditor.css
@@ -160,10 +160,6 @@
   font-weight: 500;
   cursor: pointer;
   transition: all 0.2s ease; /* 稍微拉长过渡，显得更平滑 */
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  
   /* 基础阴影 */
   box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
 }
diff --git a/src/components/NodeEditor.tsx b/src/components/NodeEditor.tsx
index 5dacb42..eb1317a 100644
--- a/src/components/NodeEditor.tsx
+++ b/src/components/NodeEditor.tsx
@@ -27,18 +27,14 @@ function Validate(updateData : NodeDataUpdate, settings : Settings) : string[] {
 
   if(ipv4Subnet) {
     const cidr = IPNetwork.parse(ipv4Subnet);
-    if(!ipv4Address) {
-      errors.push("需要设置IPv4地址");
-    } else if(!cidr.contains(IPNetwork.parse(`${ipv4Address}/32`))) {
+    if(ipv4Address && !cidr.contains(IPNetwork.parse(`${ipv4Address}/32`))) {
       errors.push("IPv4不在子网范围中");
     }
   }
 
   if(ipv6Subnet) {
     const cidr = IPNetwork.parse(ipv6Subnet);
-    if(!ipv6Address) {
-      errors.push("需要设置IPv6地址");
-    } else if(!cidr.contains(IPNetwork.parse(`${ipv6Address}/128`))) {
+    if(ipv6Address && !cidr.contains(IPNetwork.parse(`${ipv6Address}/128`))) {
       errors.push("IPv6不在子网范围中");
     }
   }
diff --git a/src/components/SettingsEditor.tsx b/src/components/SettingsEditor.tsx
index 20c1fba..15fdced 100644
--- a/src/components/SettingsEditor.tsx
+++ b/src/components/SettingsEditor.tsx
@@ -17,7 +17,7 @@ function Validate(updateData: Settings) : string[] {
   if(ipv4Subnet) {
     const result = IPNetwork.parse(ipv4Subnet)
     if(!result.isValid) {
-      errors.push("IPv4子网：" + (result.error ?? "ipv4子网不合法"))
+      errors.push("IPv4子网：" + (result.error || "ipv4子网不合法"))
     } else if(result.version != 'IPv4') {
       errors.push("IPv4子网：" + "非IPv4 CIDR");
     }
@@ -26,7 +26,7 @@ function Validate(updateData: Settings) : string[] {
   if(ipv6Subnet) {
     const result = IPNetwork.parse(ipv6Subnet)
     if(!result.isValid) {
-      errors.push("IPv6子网：" + (result.error ?? "子网不合法"));
+      errors.push("IPv6子网：" + (result.error || "子网不合法"));
     } else if(result.version != 'IPv6') {
       errors.push("IPv6子网：" + "非IPv6 CIDR");
     }
diff --git a/src/types/graph.ts b/src/types/graph.ts
index 172fed6..97fe114 100644
--- a/src/types/graph.ts
+++ b/src/types/graph.ts
@@ -38,4 +38,11 @@ export interface Settings {
 
   ipv4Subnet?: string;
   ipv6Subnet?: string;
-}
\ No newline at end of file
+}
+
+export const initialSettings : Settings = {
+  listenPort: 38894,
+  mtu: 1420,
+};
+
+export const SettingsContext = createContext<Settings>(initialSettings);
\ No newline at end of file