Cloud Vpn | Google Networking | Googlecloud Tutorial

Introduction to Cloud VPN

Cloud VPN securely connects your peer network to your Virtual Private Cloud (VPC) network through an IPsec VPN connection. Traffic traveling between the two networks is encrypted by one VPN gateway and then decrypted by the other VPN gateway.

Prerequisites

Before you begin setting up Cloud VPN, ensure you have the following:

A Google Cloud project with billing enabled.
Basic understanding of networking concepts.
Administrative access to your on-premises router or gateway.

Setting Up Cloud VPN

Follow these steps to set up Cloud VPN:

Step 1: Create a Google Cloud Project

First, create a new Google Cloud project or select an existing one.

gcloud projects create my-project

Step 2: Enable the Cloud VPN API

Enable the Cloud VPN API for your project.

gcloud services enable compute.googleapis.com

Step 3: Configure the VPN Gateway

Configure the VPN gateway in your VPC network.

gcloud compute vpn-gateways create my-vpn-gateway --network my-vpc-network --region us-central1

Step 4: Create a VPN Tunnel

Create a VPN tunnel and configure the shared secret.

gcloud compute vpn-tunnels create my-vpn-tunnel --peer-address PEER_GATEWAY_IP --ike-version 2 --shared-secret 'my-shared-secret' --target-vpn-gateway my-vpn-gateway --region us-central1

Step 5: Configure Routes

Configure the routes for the VPN tunnel.

gcloud compute routes create my-route --network my-vpc-network --next-hop-vpn-tunnel my-vpn-tunnel --next-hop-vpn-tunnel-region us-central1 --destination-range 192.168.1.0/24

Testing and Troubleshooting

After setting up, test the VPN connection to ensure it is working correctly.

Use the following command to view the status of the VPN tunnel:

gcloud compute vpn-tunnels describe my-vpn-tunnel --region us-central1

                  status: ESTABLISHED
                  peerIp: PEER_GATEWAY_IP
                  sharedSecret: 'my-shared-secret'
                  ...

If the status is not "ESTABLISHED", check your configuration and ensure that the shared secret and peer IP address are correct.

Conclusion

In this tutorial, we walked through the steps to set up a Cloud VPN on Google Cloud. We covered creating a project, enabling the necessary APIs, configuring the VPN gateway and tunnel, and setting up routes. Finally, we tested the connection to ensure everything was working correctly.

Cloud VPN Tutorial