Current use-case is a system (Satellite 6) with central Satellite server and several Capsules. At least one Capsule is located behind a firewall for the DMZ clients. These clients have no sight of the Satellite or any other Capsules. The current unattended_url is a global setting, so we need to change it every time we prepare a deployment in a different network area.

To compound this, part of our DMZ has no DNS available, so we currently need to set the unattended_url with IP address rather than FQDN. This particular problem may be better solved by other means, but changing the unattended_url is our current method. But the IP address that we need to use is behind a firewall from most of our clients.

Allowing the unattended_url to be set on a per-subnet basis will allow us to point deployments at the relevant Capsule more easily.