Creating a VPN for Google Cloud involves setting up a VPN gateway and configuring the necessary settings. Here's how to create a Classic VPN, based on the provided reference:
Steps to create a Classic VPN in Google Cloud:
- Navigate to the VPN page: In the Google Cloud console, go to the VPN page.
- Create a VPN connection: If this is your first time creating a gateway, click Create VPN connection.
- Select VPN setup wizard: This will guide you through the process.
- Choose Classic VPN: Select the Classic VPN option button.
- Continue: Click Continue to proceed with the configuration.
Detailed Configuration (Further Steps - not detailed in the provided references but essential):
While the provided reference outlines the initial steps, creating a functional VPN requires further configuration. You'll typically need to configure:
- VPN Gateway:
- Choose a region for your VPN gateway.
- Specify the IP address that will be used by the VPN gateway (either create a new one or use an existing one).
- Peer VPN Gateway: Define the IP address of your peer VPN gateway (your on-premises VPN device or another cloud VPN).
- Routing Options:
- Configure how traffic will be routed between your VPC network and your peer network. You might use route-based or policy-based routing.
- IKE (Internet Key Exchange) Settings:
- Configure the IKE version (IKEv1 or IKEv2).
- Define the shared secret (pre-shared key) used for authentication. Important: Keep this key secure.
- Specify the IKE cipher suites and integrity algorithms.
- Firewall Rules: Ensure that appropriate firewall rules are in place to allow traffic to flow between your VPN gateway and your resources in Google Cloud.
Example Scenario: Connecting an On-Premises Network to Google Cloud
Imagine you want to securely connect your on-premises network to your Google Cloud Virtual Private Cloud (VPC). A VPN allows you to extend your private network into Google Cloud.
- You would follow the initial steps above (creating a Classic VPN in the Google Cloud Console).
- During the gateway configuration, you'd enter the public IP address of your on-premises VPN device as the Peer VPN Gateway IP address.
- You'd configure matching IKE settings (IKE version, shared secret, cipher suites) on both your Google Cloud VPN gateway and your on-premises VPN device. Mismatched settings will prevent the VPN tunnel from establishing.
- You'd configure routing on both sides to direct traffic destined for your Google Cloud VPC to the VPN tunnel, and traffic destined for your on-premises network to the VPN tunnel.
- You'd configure firewall rules in Google Cloud to permit traffic from your on-premises network to reach your Google Cloud resources. Similarly, you'd configure firewall rules on your on-premises network to allow traffic originating from Google Cloud to reach your on-premises resources.
