diff --git a/hosts/xlab-gateway/dhcp.nix b/hosts/xlab-gateway/dhcp.nix
index 9a13d4c..86ae791 100644
--- a/hosts/xlab-gateway/dhcp.nix
+++ b/hosts/xlab-gateway/dhcp.nix
@@ -71,6 +71,11 @@
         server-port = 53001;
       };
     };
+    
+    # 延迟启动，确保网络接口已初始化
+    systemd.after = [ "network-online.target" ];
+    systemd.wantedBy = [ "multi-user.target" ];
+    
   };
 
   # ===========================================================================
@@ -129,6 +134,11 @@
         server-port = 53001;
       };
     };
+    
+    # 延迟启动，确保网络接口已初始化
+    systemd.after = [ "network-online.target" ];
+    systemd.wantedBy = [ "multi-user.target" ];
+    
   };
 
   # ===========================================================================