Hi Wasfi,
With IS service, there is no option to download the database for local hosting. Each device will connect to our cloud server to authenticate with their serial numbers and download the DB if they are entitled for it. With this mode, we won't be able to dowload the db on a different machine.
If a customer is having restriction in proxy's connectiong to internet, they should opt for credentials based BCWF delivery which will still enable them to download and host locally. For this sepcfic access, they need to check with our Sales Engineer to see whether offline credentials are available or not. From what I can see, IS based delivery is the future.