Changing the Docker IP Ranges

Opengear includes Docker, which powers the NetOps platform within the Lighthouse product.

By default Docker will consume the 172.16.0.0/16 subnet. This has the potential to cause collisions inside of some networks. 

To ensure that this can be averted, we have included the ability to quickly and easily change these settings.

To update Dockers subnet you need to alter 2 parameters, Docker's default subnet and the NetOps modules subnet. To do so, please follow the instructions below.

1. Open a CLI session on the Lighthouse Server and run the following to enter configuration management

   1. ogconfig-cli

2. Set the IP Range of the default subnet in CIDR format

   1. set services.nom.default_subnet "172.40.0.1/16"

3. Set the IP Range of the NetOps subnet in CIDR format

   1. set services.nom.netops_subnet "172.41.0.1/16"

4. Push the config to become the running config

   1. push

5. Exit the configuration management

   1. exit

6. Restart Docker

   1. /etc/init.d/docker.init restart

7. Restart the NetOps Module(s)

   1. /etc/init.d/docker.init reset

Please note these parameters are available starting with the 2019.Q3.0 release.