Docker Networking Cookbook

Connecting containers in bridge mode

As we mentioned earlier, Docker comes with a set of sensible defaults to get your containers communicating on the network. From a network perspective, the Docker default is to attach any spawned container to the docker0 bridge. In this recipe, we'll show how to connect containers in the default bridge mode and explain how network traffic leaving and destined for the container is handled.

Getting ready

You'll need access to a Docker host and an understanding of how your Docker host is connected to the network. In our example, we'll be using a Docker host that has two physical network interfaces, like the one shown in the following diagram:

You'll want to make sure that you have access to view iptables rules to ...