Disconnect Network C#

Question

Is it possible for me to disconnect the systems connection to the internet without the need for detecting the network adapter etc.?

I would like to add this functionality to my software but can't find a proper method.

Can anyone shine some light on this.

I am running it through a WPF app.

Thanks

Answer 1

There are many ways to implement your requirement, the best is depend on the platforms which you want support and for other requirements.

• You can disable all Network cards.
• You can temporary change the routing table.
• You can use WFP (Windows Filtering Platform see http://msdn.microsoft.com/en-us/library/aa366510.aspx) to block connection of the level of firewall, but without direct usage of the firewall.

I am sure that it is not the full list of possible ways. I know no simple .NET API which can you use.

You should be careful to be sure that after the end of your application the computer can work as before.