- play_arrow CN2 Apstra Integration
- play_arrow CN2 Security
- play_arrow Advanced Virtual Networking
- Enable BGP as a Service
- Create an Isolated Namespace
- Configure Allowed Address Pairs
- Enable Packet-Based Forwarding on Virtual Interfaces
- Configure Reverse Path Forwarding on Virtual Interfaces
- vRouter Interface Health Check
- Kubernetes Ingress Support
- Deploy VirtualNetworkRouter in Cloud-Native Contrail Networking
- Configure Inter-Virtual Network Routing Through Route Targets
- Configure IPAM for Pod Networking
- Enable VLAN Subinterface Support on Virtual Interfaces
- EVPN Networking Support
- Customize Virtual Networks for Pod Deployments, Services, and Namespaces
- Deploy Kubevirt DPDK Dataplane Support for VMs
- Pull Kubevirt Images and Deploy Kubevirt Using a Local Registry
- Static Routes
- VPC to CN2 Communication in AWS EKS
- Configure a Service Account to Assume an IAM role
- play_arrow Configure DPDK
- play_arrow Configure Services
- play_arrow Analytics
- Contrail Networking Analytics
- Contrail Networking Metric List
- Kubernetes Metric List
- Cluster Node Metric List
- Contrail Networking Alert List
- vRouter Session Analytics in Contrail Networking
- Centralized Logging
- Port-Based Mirroring
- Configurable Categories of Metrics Collection and Reporting (Tech Preview)
- Juniper CN2 Technology Previews (Tech Previews)
IPv4 and IPv6 Dual-Stack Networking
SUMMARY Cloud-Native Contrail® Networking™ (CN2) release 23.1 supports dual-stack networking for services. Previous releases supported dual-stack networking for pods, but 23.1 enables you to assign IPs to services from an IPv4 or IPv6 network. This article provides an overview of dual-stack and information about configuring dual-stack for pods and services in your CN2 cluster.
IPv4 and IPv6 Overview
A dual-stack device has network interfaces that send and receive both IPv4 and IPv6 packets. In the case of CN2 release 23.1, the dual-stack feature of your Kubernetes cluster assigns both IPv4 addresses and IPv6 addresses to pods and services.
Dual-Stack Networking Prerequisites
Dual-stack networking requires the following:
Kubernetes version 1.20 or later
- Kubernetes nodes configured with dual stack IPv4/IPv6 network interfaces
A Kubeadm or Kubespray Kubernetes cluster with dual-stack
featureGate
enabled
The CN2 deployer uses the IPv6 CIDR (podSubnet
and
serviceSubnet
in the deployment) to create an IPv6 subnet for the
podNetwork. Subsequent pod networks that you create contain an IPv6 subnet. As a result,
pods receive IPv4 and IPv6 addresses.