Hi there!
I spent some time playing with UWPToyVpn sample and been able to run it with packets flowing through StreamSocket.
But I am not able to find a way to detect event of connection reset initiated by peer. Since VpnChannel is associated and running this socket there should be a way to get such event. Is there a way to do that?
The OS will detect that the outer socket has been closed and will automatically restart (you'll get a new connect call).
This is not that I am getting. In my case after receiving RST from peer side flow of packets just stops. No new connection attempts detected by wireshark. VpnPlugin::Disconnect() and VpnPlugin::Connect() also not called automatically. The only way to restore tunnel is to manually trigger VpnManagementAgent().DisconnectProfileAsync() and VpnManagementAgent().ConnectProfileAsync() from controlling frontend app.
I don't see a way the OS by itself reestablish tunnel connection (because of specific protocols and authentication), so OS must restart VPN plugin by trigger VpnPlugin::Disconnect() and VpnPlugin::Connect() sequence or should inform VpnPlugin by any other means about loss of tunnel connection.
My system is running Win 10 Pro 1909.
I'm sorry to say that currently, we could offer limited help with VPN. For the VPN issue, Tt needs more professional support. I suggest that you might need to open a support ticket for this. Please contact our paid phone support at MS Support. You will get 1:1 support on that. Please kindly note that your support ticket will be free if it is Microsoft's issue.
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