How can I stop connections being automatically discovered when modelling devices?
If you are modeling devices individually using model by ip or hostname from the topology view you can discover devices and make sure not to check the “discover connections” box.
If you were to run a discovery from the discovery console for multiple devices then you can do this and make sure that you don’t not to select any protocols under the protocol options.
For any Scheduled discoveries you would need to make sure that “discover connections during scheduled discovery” is not checked.
Also for any discoveries whether run on demand or scheduled from the discovery console you would need to make sure any other discoveries are not including these ip addresses- You can exclude them if they were to be in a range you wanted to discover.