Cloud Architects and Network Engineers
Designing a global cloud architecture that requires IPv6 compatibility for modern web clients while maintaining legacy IPv4 backends.
Use cases
About
The Load Balancer IPv6 Termination mind map provides a technical blueprint for implementing IPv6 support within Google Cloud networking environments. This 35-node template covers critical infrastructure strategies including HTTP(S) Load Balancing, SSL Proxy, and TCP Proxy configurations. It specifically details how a single anycast IPv6 address can manage multi-region deployments, ensuring that user requests are automatically routed to the closest healthy backend. By utilizing this Load Balancer IPv6 Termination cheat sheet, network architects can visualize the flow of traffic where the load balancer acts as a reverse proxy, terminating the IPv6 client connection and translating it into an IPv4 connection for backend processing. The template also addresses essential logging requirements, such as preserving the original source IP address via specific HTTP headers to ensure backend visibility remains intact during the proxy process.
Terms and ConditionsWhen to use this template
DevOps and Site Reliability Engineers
Configuring Network Service Tiers and global forwarding rules to ensure high availability across multiple geographic regions.
Security Analysts and IT Compliance Officers
Documenting compliance and logging procedures for traffic originating from IPv6 addresses in a corporate environment.
How to use this template
Step 1
Import the template into Xmind
Open the .xmind file in Xmind desktop or the web app to view the full hierarchical structure of the load balancing strategies.
Step 2
Customize your network parameters
Replace the generic nodes with your specific project IDs, static IP addresses, and regional backend details to create a custom deployment map.
Step 3
Export for technical documentation
Use the Xmind export feature to save the diagram as a high-resolution image or PDF for inclusion in your cloud architecture design documents.
Frequently asked questions
This template helps network engineers visualize how to support IPv6 clients without needing to upgrade their entire backend infrastructure to IPv6. It maps out the proxy process where the load balancer handles the IPv6 handshake and communicates with backends via IPv4, simplifying global deployment.
As detailed in the 'Overview' node, the template explains that if backends in the closest region are unhealthy, the global load balancer automatically directs IPv6 traffic to the next closest region with available capacity using a single anycast address.
Yes. The 'IPv6 address allocation' section specifies that you should create two separate forwarding rules—one for IPv4 and one for IPv6—and associate both rules with the same load balancer instance.
Since the load balancer replaces the source IP, the 'Client IP header' section explains that Google Cloud propagates an HTTP header containing the original IPv6 address to the backend for logging and security auditing.
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