c# - 以编程方式添加路线

我编写了一个简单的实用程序，为特定的接口添加路由。代码非常简单：

using System;
using System.Diagnostics;
using System.Net.NetworkInformation;
using System.Text;

class Program
{
    static void Main(string[] args)
    {
        const string firstConnection = "xxxx.yyyyy";
        const string routeAddMask = "route add XX.XX.XX.XX mask 255.255.255.255 XXX.XXX.XXX.XXX METRIC 99 IF {0}";
        StartProcess("rasdial", firstConnection);
        var interfaceId = GetInterfaceId(firstConnection);
        string routeAdd = string.Format(routeAddMask, interfaceId);
        StartProcess("route", routeAdd);
    }

    private static int GetInterfaceId(string name)
    {
        NetworkInterface[] adapters = NetworkInterface.GetAllNetworkInterfaces();
        var adapter = Array.Find(adapters, ni => ni.Name == name);
        var props = adapter.GetIPProperties().GetIPv4Properties();
        return props.Index;
    }

    private static void StartProcess(string name, string args)
    {
        var process = new Process
                   {
                       StartInfo = new ProcessStartInfo(name, args)
                                   {
                                       UseShellExecute = false,
                                       RedirectStandardOutput = true,
                                       StandardOutputEncoding = Encoding.ASCII
                                   }
                   };
        process.Start();
        while (!process.HasExited)
        {
            Console.WriteLine(process.StandardOutput.ReadToEnd());
        }
        process.WaitForExit();
        Console.WriteLine("Process {0} finished, exit code = {1}", name, process.ExitCode);
    }
}

rasdial工作正常，我得到接口号，但是当我运行route时，我得到一个错误：
无效掩码生成错误，即当（dest&mask）！=目的地
我认为问题是进程开始参数没有被传递，因为我在发送null而不是routeAdd参数时得到了相同的错误，同时当我在命令行中提示时，这个命令可以正常工作。
可执行文件以管理员身份运行。
我试图用winapi创建它，但它也失败了

const string firstConnection = "someconnect";
StartProcess("rasdial", firstConnection);
var interfaceIndex = GetInterfaceIndex(firstConnection); //Everything is fine

var route = new MIB_IPFORWARDROW
            {
                dwForwardDest = BitConverter.ToUInt32(IPAddress.Parse("XX.XX.XX.XX").GetAddressBytes(), 0),
                dwForwardMask = BitConverter.ToUInt32(IPAddress.Parse("255.255.255.255").GetAddressBytes(), 0),
                dwForwardNextHop = BitConverter.ToUInt32(IPAddress.Parse("XXX.XXX.XXX.XXX").GetAddressBytes(), 0),
                dwForwardMetric1 = 99,
                dwForwardIfIndex = interfaceIndex
            };
var ipForwardEntry = RouteInterop.CreateIpForwardEntry(ref route);
Console.WriteLine(ipForwardEntry);

返回ERROR_INVALID_PARAMETER

最佳答案

我知道这个问题不是很复杂，但我在网上没有遇到任何解释，这就是为什么我认为这个答案会有帮助，这就是为什么我要写它，而不是删除我最初的问题。
你只要指定更多的参数就可以了

    var route = new MIB_IPFORWARDROW
                {
                    dwForwardDest = BitConverter.ToUInt32(IPAddress.Parse("XX.XX.XX.XX").GetAddressBytes(), 0),
                    dwForwardMask = BitConverter.ToUInt32(IPAddress.Parse("255.255.255.255").GetAddressBytes(), 0),
                    dwForwardNextHop = BitConverter.ToUInt32(IPAddress.Parse("XXX.XXX.XXX.XXX").GetAddressBytes(), 0),
                    dwForwardMetric1 = 99,
                    dwForwardType =  ForwardType.Indirect,
                    dwForwardProto =  ForwardProtocol.NetMGMT,
                    dwForwardAge = 0,
                    dwForwardIfIndex = interfaceIndex
                };
    var ipForwardEntry = RouteInterop.CreateIpForwardEntry(ref route);