Test protocol performance when using VPN and check current average VPN bandwidth usage

[rlcdo]

Is there a way to measure the performance of the VPN access speed using the SSTP protocol on the windows dialer, L2TP protocol on the smartphone or the OpenVPN client (which uses UDP)?

Is there a way to check how much bandwidth the VPN is consuming in orded to define the correct amount of bandwidth needed to use the VPN without creating bottlenecks? (maybe with some graph to monitor usage)

[OliverTejada]

There's multiple ways you can do this. Observe network throughput using Windows 10's Task Manager performance view tab. Locate the network adapter from which that client is connecting to the Internet, and constantly monitor the "receive" part of it, because it is data coming IN. Even though Windows won't show you the actual interface from which the VPN connection is established, all of the VPN traffic will pass through the network adapter of that computer anyway, so take that as a reference. You can also view this server side, do the exact same thing but focus on the "Send" part of it, Since it is uploading data to remote clients.




If you want to monitor specifically the network bandwidth that Microsoft's WAN Miniport Adapters (used by Windows built-in VPN client) download this tool https://www.softperfect.com/products/networx/, and when you install it, monitor all Dial Up Connections ONLY, and right click, tray icon on your taskbar then show graph, and you will have something like this


It shows you the network throughput in real time coming in and out of that VPN interface that Windows uses.

[rlcdo]

Thank you for reply! And is there anything like a benchmark that lets us know which client is the fastest? Windows dialer using SSTP, OpenVPN client or Softether client?