Google Cloud VPC Peering and VPN

Steps or Explanation

VPC Peering

VPC Peering is a networking connection between two VPC networks. With VPC peering, you can route traffic between two VPC networks as if they are in the same network.

The following are the steps to create a VPC peering:

1. Enable VPC Peering: Make sure that VPC Peering is enabled for both VPC networks.

2. Create a VPC Peering Request: From the VPC network that you want to create peering from, create a VPC peering request by specifying the other VPC network.

3. Accept the VPC Peering Request: From the VPC network that you want to peer with, accept the VPC peering request.

4. Configure the Routing: Configure the routing in both VPC networks to route traffic between the two VPC networks.

VPN

A virtual private network (VPN) is a secure connection between two networks over the internet. With VPN, you can securely transmit data between your corporate network and a Google Cloud VPC network.

The following are the steps to create a VPN:

1. Create a VPN Gateway: Create a VPN gateway in your VPC network.

2. Create a VPN Tunnel: Create a VPN tunnel between your on-premises network and your VPC network.

3. Configure your Firewall Rules: Configure your firewall rules to allow traffic between your on-premises network and your VPC network.

Examples and Use Cases

VPC Peering

• You have multiple VPC networks in different regions and want to route traffic among them.

• You have VPC networks in different projects and want to route traffic among them.

VPN

• You want to securely access your corporate network resources from a Google Cloud VPC network.

• You want to connect multiple VPC networks over a secure connection.

Important Points

• VPC peering does not support transitive peering. That means you cannot route traffic from VPC network A to VPC network C through VPC network B if B is peered with both A and C.

• You can create up to 50 VPC peering connections per VPC network per region.

• VPN tunnels support both static and dynamic routing.

Summary

VPC peering and VPN are important networking features in Google Cloud. VPC peering allows you to route traffic between two VPC networks. VPN allows you to securely connect your on-premises network to your VPC network. Understanding the steps, use cases and important points can help you make the most of these features in your environment.