无法在 Windows Server 2012 R2 中使用 DotRas 拨号

Question

我是 DotRas 的新手，所以请耐心等待。我有一个 windows 服务器 2012 R2 配置了 "Route and remote access"。在这个简单的配置中，有一个拨号器连接到 vpn，如您在第一张图片中所见..

所以，如果我点击连接..一切正常，网络接口的状态从断开连接变为连接。转到事件查看器，这是我得到的：

来自 RASCLIENT sourcelog 的事件：

事件 1：

CoId={A52088DC-5358-44D6-8B77-DA49516C3FBD}: The user SYSTEM has started dialing a VPN connection using a all-user connection profile named VpnAtlanta02. The connection settings are: 
Dial-in User = c******s
VpnStrategy = PPTP
DataEncryption = Require
PrerequisiteEntry = 
AutoLogon = No
UseRasCredentials = Yes
Authentication Type = MS-CHAPv2 
Ipv4DefaultGateway = No
Ipv4AddressAssignment = By Server
Ipv4DNSServerAssignment = By Server
Ipv6DefaultGateway = Yes
Ipv6AddressAssignment = By Server
Ipv6DNSServerAssignment = By Server
IpDnsFlags = 
IpNBTEnabled = No
UseFlags = Private Connection
ConnectOnWinlogon = No.

事件 2：

CoId={A52088DC-5358-44D6-8B77-DA49516C3FBD}: The user SYSTEM is trying to establish a link to the Remote Access Server for the connection named VpnAtlanta02 using the following device: 
Server address/Phone Number = ***.***.***.***
Device = WAN Miniport (PPTP)
Port = VPN3-4
MediaType = VPN.

事件 3：

CoId={A52088DC-5358-44D6-8B77-DA49516C3FBD}: The user SYSTEM has successfully established a link to the Remote Access Server using the following device: 
Server address/Phone Number = ***.***.***.***
Device = WAN Miniport (PPTP)
Port = VPN3-4
MediaType = VPN.

事件 4：

CoId={A52088DC-5358-44D6-8B77-DA49516C3FBD}: The link to the Remote Access Server has been established by user SYSTEM.

事件 5：

CoId={A52088DC-5358-44D6-8B77-DA49516C3FBD}: The user SYSTEM has dialed a connection named VpnAtlanta02 to the Remote Access Server which has successfully connected. The connection parameters are:
TunnelIpAddress = 172.20.0.19
TunnelIpv6Address = None
Dial-in User = c******s.

现在..我的目标是从 windows 服务连接

所以这是我的代码（重要部分）：

Dialer = new RasDialer();
Dialer.PhoneBookPath = "C:\Windows\System32\ras\Router.pbk";
Dialer.Timeout = 20 * 1000;
Dialer.HangUpPollingInterval = 20 * 1000;
Dialer.AllowUseStoredCredentials = false;
Dialer.AutoUpdateCredentials = RasUpdateCredential.None;
Dialer.EntryName = "VpnAtlanta02";
Dialer.Credentials = new System.Net.NetworkCredential("c******s", "*********");
Watcher = new RasConnectionWatcher();
Watcher.EnableRaisingEvents = true;
Watcher.Connected += Watcher_Connected;
Watcher.Disconnected += Watcher_Disconnected;
InfoLog("Begin connection");
Watcher.Handle = Dialer.Dial();

private void Watcher_Disconnected(object sender, RasConnectionEventArgs e)
{
    InfoLog(e.Connection.EntryName + " is disconnected");
}

private void Watcher_Connected(object sender, RasConnectionEventArgs e)
{
    InfoLog(e.Connection.EntryName + " is connected");
}

到目前为止，无论如何...转到事件查看器寻找 RasClient 事件源，正如预期的那样，我记录了 5 个事件。 1,2,3 和 4 等于手动连接生成的，不幸的是最后一个 (5) 是：

CoId={E2814072-13C7-44CF-998A-A1160FDC86E3}: The user SYSTEM dialed a connection named VpnAtlanta02 which has failed. The error code returned on failure is 720.

如果您认为某些凭据有误，请考虑一下，否则..我在没有凭据的情况下进行了尝试，正如预期的那样，在这种情况下我无法获得事件 4 有什么想法吗？

Answer 1

第一件事第一！这不是我问题的答案，但是...我认为这对遇到同样问题的任何人都有帮助。

经过多次尝试，甚至尝试使用 DotRas 源代码进行调试后，我没有取得任何进展，而且我不确定这是否真的可以完成。我说因为在管理员命令提示符下尝试使用 "rasdial" 命令我得到了相同的结果：失败，错误代码 720。也就是说我已经使用 powershell 得到了我的解决方案。

我一直在寻找 3 个功能强大的 cmdlet

-获取-VpnS2SInterface - 连接-VpnS2SInterface - 断开连接-VpnS2SInterface

所以我只设置了 3 个简单的方法，现在一切都很顺利

public Boolean IsConnected()
{
    Boolean retVal = false;

    using (PowerShell ps = PowerShell.Create())
    {
        ps.AddCommand("Get-VpnS2SInterface");
        ps.AddParameter("Name", "VpnAtlanta02");

        foreach (PSObject result in ps.Invoke())
        {
            retVal = ("" + result.Members["ConnectionState"].Value).ToLower() == "connected";
        }
    }

    return retVal;
}

public void Connect()
{
    using (PowerShell ps = PowerShell.Create())
    {
        ps.AddCommand("Connect-VpnS2SInterface");
        ps.AddParameter("Name", "VpnAtlanta02");
        ps.AddParameter("PassThru");


       foreach (PSObject result in ps.Invoke())
       {
           String destination = "";
           foreach (String s in result.Members["Destination"].Value as String[])
           {
               destination += "{" + s + "}";
           }
           Service1.InfoLog("Destination=" + destination + "\r\n" +
            "ConnectionState=" + result.Members["ConnectionState"].Value + "\r\n");
        }
    }
}

public void Disconnect()
{
    using (PowerShell ps = PowerShell.Create())
    {
        ps.AddCommand("Disconnect-VpnS2SInterface");
        ps.AddParameter("Name", "VpnAtlanta02");
        ps.AddParameter("Force");
        ps.Invoke();

        Service1.InfoLog("Nic: " + "VpnAtlanta02" + " is connected: " + IsConnected());
    }
}

无法在 Windows Server 2012 R2 中使用 DotRas 拨号

Can't dial with DotRas in Windows Server 2012 R2

c#

.net

pinvoke

ras