在.NET中以编程方式配置网络适配器的最佳方法

Question

我有一个用C#编写的应用程序,需要能够在Windows中配置网络适配器.我有这个基本上通过WMI工作,但有一些我不喜欢的解决方案:有时设置似乎没有坚持,并且当没有插入网络电缆时,WMI返回错误方法,所以我不知道他们是否真的成功了.

我需要能够通过网络连接配置所有可用的设置 - 属性 - TCP/IP屏幕.

最好的方法是什么？

Answer 1

您可以使用Process触发netsh命令来设置网络对话框中的所有属性.

例如:在适配器上设置静态ipaddress

netsh interface ip set address "Local Area Connection" static 192.168.0.10 255.255.255.0 192.168.0.1 1

要将它设置为dhcp,你可以使用它

netsh interface ip set address "Local Area Connection" dhcp

要从C#做到这一点

Process p = new Process();
ProcessStartInfo psi = new ProcessStartInfo("netsh", "interface ip set address \"Local Area Connection\" static 192.168.0.10 255.255.255.0 192.168.0.1 1");
p.StartInfo = psi;
p.Start();

设置为静态可能需要几秒钟才能完成,因此如果需要,请确保等待进程退出.

Answer 2

使用我的代码 SetIpAddress 和 SetDHCP

    /// <summary>
    /// Sets the ip address.
    /// </summary>
    /// <param name="nicName">Name of the nic.</param>
    /// <param name="ipAddress">The ip address.</param>
    /// <param name="subnetMask">The subnet mask.</param>
    /// <param name="gateway">The gateway.</param>
    /// <param name="dns1">The DNS1.</param>
    /// <param name="dns2">The DNS2.</param>
    /// <returns></returns>
    public static bool SetIpAddress(
        string nicName,
        string ipAddress,
        string subnetMask,
        string gateway = null,
        string dns1 = null,
        string dns2 = null)
    {
        ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
        ManagementObjectCollection moc = mc.GetInstances();

        NetworkInterface[] interfaces = NetworkInterface.GetAllNetworkInterfaces();
        NetworkInterface networkInterface = interfaces.FirstOrDefault(x => x.Name == nicName);
        string nicDesc = nicName;

        if (networkInterface != null)
        {
            nicDesc = networkInterface.Description;
        }

        foreach (ManagementObject mo in moc)
        {
            if ((bool)mo["IPEnabled"] == true
                && mo["Description"].Equals(nicDesc) == true)
            {
                try
                {
                    ManagementBaseObject newIP = mo.GetMethodParameters("EnableStatic");

                    newIP["IPAddress"] = new string[] { ipAddress };
                    newIP["SubnetMask"] = new string[] { subnetMask };

                    ManagementBaseObject setIP = mo.InvokeMethod("EnableStatic", newIP, null);

                    if (gateway != null)
                    {
                        ManagementBaseObject newGateway = mo.GetMethodParameters("SetGateways");

                        newGateway["DefaultIPGateway"] = new string[] { gateway };
                        newGateway["GatewayCostMetric"] = new int[] { 1 };

                        ManagementBaseObject setGateway = mo.InvokeMethod("SetGateways", newGateway, null);
                    }


                    if (dns1 != null || dns2 != null)
                    {
                        ManagementBaseObject newDns = mo.GetMethodParameters("SetDNSServerSearchOrder");
                        var dns = new List<string>();

                        if (dns1 != null)
                        {
                            dns.Add(dns1);
                        }

                        if (dns2 != null)
                        {
                            dns.Add(dns2);
                        }

                        newDns["DNSServerSearchOrder"] = dns.ToArray();

                        ManagementBaseObject setDNS = mo.InvokeMethod("SetDNSServerSearchOrder", newDns, null);
                    }
                }
                catch
                {
                    return false;
                }
            }
        }

        return true;
    }

    /// <summary>
    /// Sets the DHCP.
    /// </summary>
    /// <param name="nicName">Name of the nic.</param>
    public static bool SetDHCP(string nicName)
    {
        ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
        ManagementObjectCollection moc = mc.GetInstances();

        NetworkInterface[] interfaces = NetworkInterface.GetAllNetworkInterfaces();
        NetworkInterface networkInterface = interfaces.FirstOrDefault(x => x.Name == nicName);
        string nicDesc = nicName;

        if (networkInterface != null)
        {
            nicDesc = networkInterface.Description;
        }

        foreach (ManagementObject mo in moc)
        {
            if ((bool)mo["IPEnabled"] == true
                && mo["Description"].Equals(nicDesc) == true)
            {
                try
                {
                    ManagementBaseObject newDNS = mo.GetMethodParameters("SetDNSServerSearchOrder");

                    newDNS["DNSServerSearchOrder"] = null;
                    ManagementBaseObject enableDHCP = mo.InvokeMethod("EnableDHCP", null, null);
                    ManagementBaseObject setDNS = mo.InvokeMethod("SetDNSServerSearchOrder", newDNS, null);
                }
                catch
                {
                    return false;
                }
            }
        }

        return true;
    }