Cluster port

[pablopla]

Which port should be use for clustering, 4248 or 6222?
Some doc pages use port 6222 while other use port 4248.

6222
https://docs.nats.io/running-a-nats-service/nats_docker
https://hub.docker.com/_/nats
https://docs.nats.io/running-a-nats-service/configuration/clustering/jetstream_clustering#server-1-host_a
https://docs.nats.io/running-a-nats-service/nats_docker/nats-docker-tutorial
https://docs.nats.io/running-a-nats-service/clients#nats-urls

4248
https://docs.nats.io/running-a-nats-service/configuration/clustering