title: MongoDB Atlas peering with GCP for existing cluster
body: <p>I am trying to set up VPC peering between MongoDB-Atlas and GCP in an existing cluster. But in a peering tab in Atlas, GCP is not enabled and it is giving me a message "There is an existing cluster in this project and private IP mode is not enabled"</p>
  
  <p>Is it possible to set up peering in an existing cluster with GCP, if yes can someone please guide me? Thanks!!</p>
  
  <p>I am using M10 cluster, cloud provider is GCP.</p>
  
  <p><a href="https://i.stack.imgur.com/B8pro.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/B8pro.png" alt="enter image description here"></a></p>