Antrea
7.2#1 in microsegmentation softwareFree planFree planAPILinuxSelf-hostedWindows
VisitAntrea vs Calico Open Source
Calico Open Source
6.1#5 in container networking softwareFree planFree planLinuxSelf-hostedWindows
VisitWhat both publish
| Fact | Antrea | Calico Open Source |
|---|---|---|
| Encryption | Inter-node pod traffic can be encrypted with IPsec or WireGuard tunnels. | It can automatically create and manage WireGuard tunnels between nodes to encrypt in-cluster Kubernetes pod traffic. |
| Observability | The project includes packet tracing, policy analysis, flow inspection, Prometheus metrics and flow export tools. | Calico Open Source includes Whisker, a visual UI for viewing flow logs and analyzing network communication. |
| Purpose | Antrea implements the Container Network Interface and Kubernetes NetworkPolicy to provide pod networking and security for Kubernetes workloads. | Calico Open Source provides networking, network security, and observability across Kubernetes distributions. |
| Support | The project directs users to its Kubernetes Slack channel, mailing lists, community meetings, and office hours. | The editions comparison describes Calico Open Source support and maintenance as community-driven. |
Antrea plans
- AntreaFree
Calico Open Source plans
- Calico Open SourceFree
Pick Antrea if…
Antrea suits Kubernetes operators who need pod networking, network policy controls or multi-cluster capabilities. It requires Open vSwitch on every node, and its traffic encryption feature applies to Linux nodes rather than Windows nodes.
Pick Calico Open Source if…
It suits Kubernetes users seeking open-source networking, network security, and observability across cloud, hybrid, or on-premises environments. The support and maintenance model is community-driven.