CancellationTokenSource in GetHostEntryAsync (and ping)

[sapator]

Hi.
I'm using this example for multiple net calls: https://docs.microsoft.com/en-us/dot...-they-complete
However I'm changing it a little as I need to get the computers on multiple networks and IP's so I'm using GetHostEntryAsync .
I'm reading that there is no cancellation token on this one, correct? So I just leave it to run orrrr..what? The app get 0 to 255 addresses on a loop an is doing about 1 minute but I'm not sure if I'm blocking our network doing so (can't check right now as we are on a lockdown and I have all the net resources available to "experiment" ) . So is there a way I cancel the retrieval, or I need to close the app (also closing the app cancel or do I need to force an app.exit or something similar?) ?

Second question. Is there anything else than a ping to get computers that are currently online . I'm asking this because I get most of the computers with GetHostEntryAsync but they are probable cached on the DNS because they are not online but I get the IP and name in most of them. I guess a ping will get the status but I was looking for something faster as ping as it has that specific "pause" when calling it ( at least on a command prompt, not sure yet if there is a delay setting I can use on .net) . Also is there an async ping with cancellation?

Thanks.

[sapator]

OK. There is a System.Net.NetworkInformation ping that uses async and has a cancellation token.
So I'll try this but it think it will do.
So for now only the initial question stands.