Create/Connect VPN connection through C#.Net

Question

I have a URL, a username, and a password. I want to establish a VPN connection in C# .Net WinForms.

Can you please tell me from where I can get started? Any third party API's ?

Code samples will be highly appreciated...

Using windows built-in VPN support or a 3rd party app like AnyConnect/OpenVPN? — Alex K., Oct 27 '11 at 09:06
https://learn.microsoft.com/en-us/uwp/api/windows.networking.vpn?view=winrt-20348 — , Jun 28 '21 at 19:56

score 16 · Accepted Answer · answered Oct 27 '11 at 09:05

16

You can launch external application like in this sample. This probably is easiest way to do it, but it depends on external applications.

Or you can try to use Windows API with some wrapper like DotRas. This could be a bit harder, but you won't have any dependancies on particular external apps.

answered Oct 27 '11 at 09:05

PiRX

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It might be a silly question, but can you tell me in which of these references, i can create/define the VPN object dynamically based on the provided URL by the client and then connect it using user/pas ?? – xtremist Oct 27 '11 at 20:29
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Using VPN Sophos Connect ? – Kiquenet Mar 19 '20 at 15:17
Updated DotRas link to github: https://github.com/winnster/DotRas – Always Lucky May 30 '21 at 18:47

score 10 · Answer 2 · answered Oct 27 '11 at 09:04

10

You can use the rasdial executable to accomplish this:

System.Diagnostics.Process.Start("rasdial.exe", "VPNConnectionName VPNUsername VPNPassword");

Rasdial is Windows 7.. from memory its RasPhone for XP.

answered Oct 27 '11 at 09:04

chemicalNova

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"VPNConnectionName" : Can i define this object dynamically in C# based on the URL provided by the user ? – xtremist Oct 27 '11 at 20:24
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@xtremist it's a string, you can do whatever you want. – The Muffin Man Aug 28 '19 at 00:54

Create/Connect VPN connection through C#.Net

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