Google Cloud Virtual Private Cloud (VPC)

A global, scalable, and flexible networking foundation for Google Cloud resources

What is VPC?

Google Cloud Virtual Private Cloud (VPC) is a fully managed, scalable, and flexible networking service that provides a private, isolated virtual network for your Google Cloud resources. VPC enables you to define your own IP address ranges, create subnets, configure routing, set up firewall rules, and establish secure connections between your cloud resources and on-premises infrastructure.

With VPC, you can build multi-tier applications with granular network segmentation, leverage global networking capabilities, and ensure secure, reliable connectivity for Compute Engine VMs, Google Kubernetes Engine (GKE) clusters, App Engine environments, and more. VPC supports both IPv4 and IPv6, and offers advanced features such as Shared VPC, VPC Peering, Private Google Access, and hybrid connectivity options like Cloud VPN and Cloud Interconnect.

Architecture

Key Components

Subnets

Subnets divide a VPC network into regional segments, allowing you to allocate IP ranges and deploy resources in specific regions for high availability and isolation.

Firewall Rules

Firewall rules control traffic to and from resources within your VPC, enabling you to define granular security policies at the network and subnet level.

Routes

Routes define how traffic flows within your VPC and to external networks, supporting custom routing, internet access, and hybrid connectivity scenarios.

Key Capabilities

Global Networking

VPC networks are global resources, enabling seamless connectivity across Google Cloud regions without traversing the public internet.

Built-in Security

Integrated firewall rules, VPC Service Controls, and Private Google Access help protect your resources and data from unauthorized access.

Hybrid Connectivity

Connect your on-premises infrastructure to Google Cloud securely using Cloud VPN, Cloud Interconnect, and VPC Peering.

Flexible IP Management

Define custom IP ranges, support for both IPv4 and IPv6, and granular subnet allocation for precise network design.

Common Use Cases

Multi-tier Web Applications Isolate frontend, backend, and database tiers using subnets and firewall rules.

Hybrid Cloud Networking Connect on-premises data centers to Google Cloud securely via VPN or Interconnect.

Secure SaaS Ecosystems Enable private access to Google services and build secure SaaS offerings with VPC Peering.

Big Data & Analytics Run analytics workloads securely with private connectivity to BigQuery and Cloud Storage.

Containerized Workloads Deploy GKE clusters with network segmentation and policy enforcement.

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