Linux kernel 3.10 or later with required dependencies. The following distributions have the required kernel, its dependencies, and are known to work well with Calico and host protection.
- RedHat Linux 7
- CentOS 7
- CoreOS Container Linux stable
- Ubuntu 16.04
- Debian 8
Calico v3.3 requires a key/value store accessible by all Calico components. The key/value store must be etcdv3.
Ensure that your hosts and firewalls allow the necessary traffic based on your configuration.
|Calico networking (BGP)||All||Bidirectional||TCP 179|
|Calico networking with IP-in-IP enabled (default)||All||Bidirectional||IP-in-IP, often represented by its protocol number
|All||etcd hosts||Incoming||Officially TCP 2379 but can vary|
Tip: If you are using one of the recommended distributions, you will already satisfy these.
ipip(if using Calico networking)