Podman uses two different means for its networking stack, depending on whether the container is rootless or rootfull. When rootfull, defined as being run by the root (or equivalent) user, Podman primarily relies on the containernetworking plugins project. When rootless, defined as being run by a regular user, Podman uses the slirp4netns project.

#Networking and Podman pods
By definition, all containers in a Podman pod share the same network namespace. This fact means that they will have the same IP address, MAC addresses, and port mappings. You can conveniently communicate between containers in a pod by using localhost.

It seems once people master the basics of containers, networking is one of the first aspects they begin experimenting with. And regarding networking, it takes very little experimentation before ending up on the deep end of the pool. The following guide shows the most common network setups for Podman rootful and rootless containers. Each setup is supported with an example.

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