How change the network card configuration from ASP.NET?

See more:

C#

network

WMI

ASP.NET4

I want to change the network card configuration as the IP address, subnet, gateway and DNSs. All this using ASP.NET 4.0 with C# deployed in Windows XP IIS 5.1. I'm using WMI for this purpose, but when I run the code not work.

Specifically I can show the IP, Subnet, Gateway and DNS of network. But I can't set the values.

My idea is configure the network card remotely (as a router).

What I have tried:

I tried to make some things similar to this example:
SwitchNetConfig - Laptop users, quickly switch network and proxy configuration in different places[^]

The code for the WMI helper class:

<pre>using System;
using System.Collections;
using System.Management;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace NetworkConfig
{
    public class WMI_helper
    {
        /// <summary>
        /// Obtiene las tarjetas de red
        /// </summary>
        /// <returns></returns>
        public static ArrayList GetNICNames()
        {
            ArrayList nicNames = new ArrayList();

            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObjectCollection moc = mc.GetInstances();

            foreach(ManagementObject mo in moc)
            {
                if ((bool)mo["ipEnabled"])
                {
                    nicNames.Add(mo["Caption"]);
                }
            }
            return nicNames;
        }

        /// <summary>
        /// Obtiene la IP de una tarjeta de red específica
        /// </summary>
        /// <param name="nicName">Nombre de la tarjeta de red</param>
        /// <param name="ipAddresses">Direccion IP</param>
        /// <param name="subnets"></param>
        /// <param name="gateways"></param>
        /// <param name="dnses"></param>
        public static void GetIP(string nicName, out string[] ipAddresses, out string[] subnets, out string[] gateways, out string[] dnses)
        {
            ipAddresses = null;
            subnets = null;
            gateways = null;
            dnses = null;

            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObjectCollection moc = mc.GetInstances();

            foreach (ManagementObject mo in moc)
            {
                if ((bool)mo["ipEnabled"])
                {
                    if (mo["Caption"].Equals(nicName))
                    {
                        ipAddresses = (string[]) mo["IPAddress"];
                        subnets = (string[]) mo["IPSubnet"];
                        gateways = (string[])mo["DefaultIPGateway"];
                        dnses = (string[]) mo["DNSServerSearchOrder"];

                        break;
                    }
                }
            }
        }

        /// <summary>
        /// Establece las configuraciones de red para una tarjeta de red especifica.
        /// </summary>
        /// <param name="nicName">Nombre de la tarheta de red</param>
        /// <param name="IPAddresses">Direccion IP</param>
        /// <param name="subnetMask">Subnet</param>
        /// <param name="gateway">Gateway</param>
        /// <param name="DnsSearchOrder">DNS</param>
        public static void SetIP(string nicName, string IPAddresses, string subnetMask, string gateway, string DnsSearchOrder)
        {
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObjectCollection moc = mc.GetInstances();

            foreach (ManagementObject mo in moc)
            {
                if((bool)mo["IPEnabled"])
                {
                    if (mo["Caption"].Equals(nicName))
                    {
                        ManagementBaseObject newIP = mo.GetMethodParameters("EnableStatic");
                        ManagementBaseObject newGate = mo.GetMethodParameters("SetGateways");
                        ManagementBaseObject newDNS = mo.GetMethodParameters("SetDNSServerSearchOrder");

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

                        newIP["IPAddress"] = IPAddresses.Split(',');
                        newIP["SubnetMask"] = new string[] { subnetMask };

                        newDNS["DNSServerSearchOrder"] = DnsSearchOrder.Split(',');

                        ManagementBaseObject setIP = mo.InvokeMethod("EnableStatic", newIP, null);
                        ManagementBaseObject setGateways = mo.InvokeMethod("SetGateways", newGate, null);
                        ManagementBaseObject setDNS = mo.InvokeMethod("SetDNSServerSearchOrder", newDNS, null);

                        break;
                    }
                }
            }
        }

        public static void SetDHCP(string nicName)
        {
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObjectCollection moc = mc.GetInstances();

            foreach (ManagementObject mo in moc)
            {
                if (mo["Caption"].Equals(nicName))
                {
                    ManagementBaseObject newDNS = mo.GetMethodParameters("SetDNSServerSearchOrder");
                    newDNS["DNSServerSearchOrder"] = null;
                    ManagementBaseObject enableDHCP = mo.InvokeMethod("EnableDHCP", null, null);
                    ManagementBaseObject setDNS = mo.InvokeMethod("SetDNSServerSearchOrder", newDNS, null);
                }
            }
        }

    }
}