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Create a VPC Subnet
This tutorial explains what is and how we can create a VPC subnet.
Good to know about a Virtual Private Cloud network (or a "network") :
- Is a virtual version of the traditional physical network.
- Provides connectivity for your Compute Engine instances, Container Engine containers and App Engine Flex services created in different regions (VPC network has a global scope).
- VPC networks are divided into regional subnetworks, also known as subnetworks, or subnets .
- GCP projects can contain multiple VPC networks.
- Networks have no IP address range. Therefore, subnetworks don't need to fit into an address hierarchy.
- Subnetworks can cross zones in the same region.
- A single firewall rule can apply to all the VMs connected to a subnet even though they are in different zones.
Info
2 VMs could communicate even if they are on different VPC networks. This is done by the external IPs which are not
visible at the OS level.
For creating a VPC subnet, we need to open the GCP Console, and go to "Networking" -> "VPC network".
And you will see the following screen:
Click on the network this new subnet will extend.
Click on the "ADD SUBNET" button.
Input the main subnet properties (for testing purpose) and click on the "ADD" button from the bottom of the page.
Here is the new subnet we have just created:
