##### Cluster External Ports

These ports should be open between nodes and the external network for communication and management of Rancher.

Protocol | Port | Description
--- | --- | ---
TCP | 22 | SSH for RKE
TCP | 80 | Ingress controller - redirect to HTTPS
TCP | 443 | Ingress controller - HTTPS traffic to Rancher
TCP | 6443 | HTTPS to kube-api, used by kubectl and helm

##### Additional Ports Required Between Rancher Cluster Nodes

In addition to the ports listed above these ports must be open between nodes.

Protocol | Port | Description
--- | --- | ---
TCP | 2379-2380 | etcd
udp | 8472 | Overlay networking
TCP | 10250 | kubelet