如何在DotRas中指定SSTP的使用？

Question

我试图在DotRas中指定sstp连接-我找到了一个示例来实现它-

RasDevice device = RasDevice.GetDeviceByName("(SSTP)", RasDeviceType.Vpn, false);
            if (device == null) throw new Exception("Cannot get RasDevice");
            RasEntry entry = RasEntry.CreateVpnEntry(connectionName, serverAddress, RasVpnStrategy.SstpOnly, device);

但在我的RasVpnStrategy中，只有Default、L2tpFirst、L2tpOnly、PptpFirst、PptpOnly字段可用。

我发现：

/// <summary>
    /// Defines the VPN strategies.
    /// </summary>
    public enum RasVpnStrategy
    {
        /// <summary>
        /// Dials PPTP first. If PPTP fails, L2TP is attempted.
        /// </summary>
        Default = 0,

        /// <summary>
        /// Dial PPTP only.
        /// </summary>
        PptpOnly = 1,

        /// <summary>
        /// Always dial PPTP first.
        /// </summary>
        PptpFirst = 2,

        /// <summary>
        /// Dial L2TP only.
        /// </summary>
        L2tpOnly = 3,

        /// <summary>
        /// Always dial L2TP first.
        /// </summary>
        L2tpFirst = 4,
#if (WIN2K8)
        /// <summary>
        /// Dial SSTP only.
        /// </summary>
        SstpOnly = 5,

        /// <summary>
        /// Always dial SSTP first.
        /// </summary>
        SstpFirst = 6
#endif
    }

所以，我甚至不能在我的应用程序中指定Sstp？(Win7)

Answer 1

这是不可能的，在目前的DOTRas发行版，只有PPTP/L2TP可用。

Answer 2

您至少需要引用Win2k8版本的DotRas.dll，然后您应该有RasVpnStrategy.SstpOnly和RasVpnStrategy.SstpFirst枚举选项。

Answer 3

即使在W2K程序集中，似乎也缺少RasVpnStrategy.SstpOnly和RasVpnStrategy.SstpFirst枚举选项，但下面的代码适用于我。

var device = RasDevice.GetDevices().FirstOrDefault(d => d.Name.Contains("SSTP"));
RasEntry entry = RasEntry.CreateVpnEntry(entryName, ipAddress, (RasVpnStrategy)5, device);