您可以使用路由添加VM的内部IP。 （ https://cloud.google.com/compute/docs/reference/beta/路由）

You can add internal IP for VM using routes. (https://cloud.google.com/compute/docs/reference/beta/routes)

这里是为VM设置另一个静态内部IP的示例：
https://cloud.google.com/compute/docs/networking#staticnetworkaddress

Here an example of setting another static internal IP to VM: https://cloud.google.com/compute/docs/networking#staticnetworkaddress