diff --git a/src/types/graph.ts b/src/types/graph.ts
index b3fc3d5..6ebb738 100644
--- a/src/types/graph.ts
+++ b/src/types/graph.ts
@@ -4,52 +4,42 @@ export type AppNode = Node<NodeData>;
 
 export type AppEdge = Edge<EdgeData>;
 
-export interface GroupAllowRule {
-  kind: 'group'
-  allowGroup: number
-}
+export class SubNetRouter {
+  private _nodes : Record<string, string | undefined> = {};
 
-export interface HostAllowRule {
-  kind: 'host'
-  allowHost: number
+  constructor(
+    public subnet: string,
+  ) {}
 }
 
-export interface CustomAllowRule {
-  kind: 'custom'
-  allow: string
-}
-
-export type AllowRule = GroupAllowRule | HostAllowRule | CustomAllowRule
-
 export type NodeData = {
-  // basic
+  id: string;
   label: string;
   privateKey: string;
-  groupId: number;
-  hostId: number;
-  
-  // host options
+  ipv4Address?: string;
+  ipv6Address?: string;
+  disallowIPs?: string;
+
   postUp?: string;
   postDown?: string;
   mtu?: number;
-  notes?: string;
   listenPort?: number;
   dnsServers?: string;
-  
-  // peer options
-  // allowRules?: AllowRule[]; 
-  // persistentKeepalive?: string; todo: 加到边上
+  notes?: string;
 }
 
 export type Settings = {
-  v4SubNetPrefix: [number, number];
   listenPort: number;
-  
-  // options
-  v6SubNetPrefix?: [string, string, string, string];
-  mtu?: number;
+  mtu: number;
+
+  ipv4Subnet?: string;
+  ipv4SubnetRouter?: SubNetRouter;
+
+  ipv6Subnet?: string;
+  ipv6SubnetRouter?: SubNetRouter;
 }
 
 export type EdgeData = {
-  isTwoWayEdge: boolean
+  isTwoWayEdge: boolean;
+  persistentKeepalive?: string;
 }
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