IPv6 Networking and Observability with Cilium and Hubble

Kubernetes’ IPv6 support has improved over the years, with an important milestone arriving last year: Dual Stack enabled by default in Kubernetes 1.23. It means that Kubernetes is not only IPv6-ready but it also provides a transitional pathway from IPv4 to IPv6.

With Dual Stack, each pod is allocated both an IPv4 and an IPv6 address, so it can communicate both with IPv6 systems and the legacy apps and cloud services that use IPv4.

In order to run Dual Stack on Kubernetes, you need a CNI that supports it: of course, Cilium does.

In order to operate Dual Stack and manage the added complexity that comes with IPv6 (128-bit addresses are not exactly easy to remember), you should consider an observability platform like Hubble.

In this video, Senior Technical Marketing Engineer Nico Vibert will walk you through how to deploy a IPv4/IPv6 Dual Stack Kubernetes cluster and install Cilium and Hubble to benefit from their networking and observability capabilities.

0:00 Introduction
1:02 Deploy Dual Stack Cluster
2:26 Install Cilium in Dual Stack mode
3:04 Enable Hubble
3:57 Deploy Applications
6:50 Verify Flows on Hubble

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