Network

Overview

The Network resource in the Sandbox UI lets you create and manage isolated Docker networks that your container sandboxes can connect to. Networks define how containers communicate within a lab and allow you to simulate real-world networking setups directly from the interface.

You can use network resources to separate containers into different segments, control their connectivity, and demonstrate networking concepts visually—without writing any configuration code. This provides a flexible way to build multi-tier architectures, test service discovery, or model secure environments using the Sandbox UI.

For more information on the network sandbox resource, please refer to the Network Sandbox documentation.

Creating a Network resource

Network sandboxes can be created in the Sandbox tab. To create a new Network resource, navigate to the Sandbox tab and click the + button. Select Network from the dropdown menu.

You can assign a

• Name: This is the internal name of the network and will not be visible to users. It is used to reference it in other components.
• Subnet: This is the subnet for the network in CIDR notation (e.g., 10.100.100.0/24).
• Enable IPv6: Enables IPv6 for the network. This is the only optional field.

After filling in the required fields, click Add changes to create the network resource in your lab.

Creating a network resource doesn’t mean it will be automatically used. You need to assign it to a container sandbox to make it effective. You can do this by editing the container sandbox and selecting the desired network from the Network dropdown menu.

For more information on how to create a container sandbox, please refer to the Container Sandbox documentation.

Editing a Network resource

To edit a network resource, you can select it from the list of existing sandboxes in the Sandbox tab. Click on the network you want to edit, make your changes in the configuration panel, and then click Add changes to save your updates.

Summary

The Network resource allows you to create and manage isolated Docker networks that define how containers communicate within your lab environment. It enables you to simulate real-world networking scenarios — such as multi-tier architectures or secure segmented systems — directly from the Sandbox UI, without writing configuration code.

You can easily configure network properties like name, subnet, and IPv6 support, and then link containers to specific networks to control their connectivity and interaction. This provides a flexible and visual way to design and demonstrate networking concepts in your sandbox environments.