Cloud Architects and Network Engineers
Designing a new cloud infrastructure layout to avoid IP address overlap between regional subnets
Use cases
About
The Virtual Private Cloud Network mind map template provides a technical architecture overview for cloud engineers and network architects managing Google Cloud Platform (GCP) environments. This 47-node cheat sheet covers the foundational infrastructure of a Virtual Private Cloud, detailing the structural differences between 'Auto' and 'Custom' network modes. It serves as a comprehensive Virtual Private Cloud Network template for designing secure, scalable cloud environments, specifically outlining how 'Subnets' function as regional resources that span multiple zones. The guide includes critical data on IP address management, such as the 'Reserved IPs' protocol where specific addresses are allocated for the Network, Gateway, and Broadcast. By using this Xmind template, professionals can visualize the relationship between Identity and Access Management (IAM) roles and network limitations, ensuring that 'ComputeNetworkAdmin' permissions are correctly applied across the infrastructure.
Terms and ConditionsWhen to use this template
DevOps Leads and IT Managers
Onboarding new team members to explain GCP-specific networking constraints and IAM permissions
Security Auditors and Systems Administrators
Auditing existing network configurations to ensure compliance with private access and flow log requirements
How to use this template
Step 1
Import the VPC structure
Open the .xmind file in Xmind to view the pre-structured branches for Modes, Subnets, and IAM.
Step 2
Customize CIDR and IP ranges
Modify the 'Subnets' nodes to reflect your specific CIDR notation and primary or secondary address ranges.
Step 3
Define administrative roles
Update the 'IAM' branch to map your organization's specific user groups to the ComputeAdmin or NetworkAdmin roles.
Frequently asked questions
The template outlines three modes: Default, Auto, and Custom. Auto mode automatically creates a /20 subnet in every region and is expandable to /16, while Custom mode offers maximum flexibility to prevent IP overlap but cannot be converted back to auto mode once established.
According to the 'Subnets' branch, specific addresses are reserved: the 1st for the Network, the 2nd for the Gateway, the second-to-last for future use, and the last for the Broadcast address.
The template specifies two primary roles under the 'IAM' node: 'ComputeAdmin', which handles full instance and network functions, and 'ComputeNetworkAdmin', which is restricted to network administration roles only.
The 'Limitations' section of this mind map explicitly notes that VPCs currently support IPv4 only and do not support broadcast or multicast traffic within the network environment.
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