LXD cluster & Ubuntu fan on 240.0.0.0/8 : Windows won't route

I think this is really more of a Windows question, BUT since the 240/8 subnet is something the Ubuntu fan for LXD defaulted to, I thought I’d ask here.

It seems that Windows refuses to route to the 240/8 subnet. Does that sound correct? From my searching, I don’t think there really is a simple solution. Both Linux and Mac don’t have issue with the IP range, so I know the services can be accessed from other devices … except for Windows.

My suspicion (and current plan) is to create a new network on the 10/8 subnet and use that instead… the migration will take some work, so thought it was worth asking before starting that process.

Thanks!

I’ve not tried connecting a Windows VM guest to a managed bridge with fan mode enabled.

However if you’re looking for an overlay network mode that uses more traditional and customisable ranges, then please take a look at our OVN integration:

https://documentation.ubuntu.com/lxd/en/latest/howto/network_ovn_setup/

We also have MicroCloud which can automate deploying and configuring LXD and MicroOVN together, see https://canonical-microcloud.readthedocs-hosted.com/en/v2-edge/microcloud/