How to configure the Docker bridge IP range on RancherOS v1.5

This document (000020215) is provided subject to the disclaimer at the end of this document.



In RancherOS v1.5.x the docker0 bridge network has a default IP range of and the docker-sys bridge for system-docker has a default range of This article details how to update these ranges.


  • A RancherOS v1.5.x host


The docker0 bridge range is set by the rancher.docker.bip argument, whilst the docker-sys bridge is set by rancher.system_docker.bip argument.

These can be configured in the cloud-config as follows:


These can also be customized after the host has started with the ros config command, and will take effect after a reboot:

ros config set rancher.docker.bip
ros config set rancher.system_docker.bip

Further reading

You can read more on configuring Docker or System Docker within the RancherOS documentation.


This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:000020215
  • Creation Date: 06-May-2021
  • Modified Date:06-May-2021
    • SUSE Rancher

< Back to Support Search

For questions or concerns with the SUSE Knowledgebase please contact: tidfeedback[at]

SUSE Support Forums

Get your questions answered by experienced Sys Ops or interact with other SUSE community experts.

Join Our Community

Support Resources

Learn how to get the most from the technical support you receive with your SUSE Subscription, Premium Support, Academic Program, or Partner Program.

SUSE Customer Support Quick Reference Guide SUSE Technical Support Handbook Update Advisories
Support FAQ

Open an Incident

Open an incident with SUSE Technical Support, manage your subscriptions, download patches, or manage user access.

Go to Customer Center