NetworkInterface Clase

Referencia

Definición

Espacio de nombres:: System.Net.NetworkInformation

Ensamblado:: System.Net.NetworkInformation.dll

Ensamblado:: System.dll

Ensamblado:: netstandard.dll

Source:: NetworkInterface.cs

Source:: NetworkInterface.cs

Source:: NetworkInterface.cs

Importante

Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.

Proporciona información de configuración y estadística para una interfaz de red.

public ref class NetworkInterface abstract sealed

public ref class NetworkInterface abstract

public static class NetworkInterface

public abstract class NetworkInterface

type NetworkInterface = class

Public Class NetworkInterface

Public MustInherit Class NetworkInterface

Herencia: Object
NetworkInterface

Ejemplos

En el ejemplo de código siguiente se muestra información sobre las interfaces.

void ShowNetworkInterfaces()
{
   IPGlobalProperties ^ computerProperties = IPGlobalProperties::GetIPGlobalProperties();
   array<NetworkInterface^>^nics = NetworkInterface::GetAllNetworkInterfaces();
   Console::WriteLine( "Interface information for {0}.{1}     ", computerProperties->HostName, computerProperties->DomainName );
   if ( nics == nullptr || nics->Length < 1 )
   {
      Console::WriteLine( "  No network interfaces found." );
      return;
   }

   Console::WriteLine( "  Number of interfaces .................... : {0}", nics->Length );
   System::Collections::IEnumerator^ myEnum4 = nics->GetEnumerator();
   while ( myEnum4->MoveNext() )
   {
      NetworkInterface ^ adapter = safe_cast<NetworkInterface ^>(myEnum4->Current);
      IPInterfaceProperties ^ properties = adapter->GetIPProperties();
      Console::WriteLine();
      Console::WriteLine( adapter->Description );
      Console::WriteLine( String::Empty->PadLeft( adapter->Description->Length, '=' ) );
      Console::WriteLine( "  Interface type .......................... : {0}",
         adapter->NetworkInterfaceType );
      Console::WriteLine( "  Physical Address ........................ : {0}",
         adapter->GetPhysicalAddress() );
      Console::WriteLine( "  Operational status ...................... : {0}",
         adapter->OperationalStatus );
      String^ versions = "";

      // Create a display string for the supported IP versions.
      if ( adapter->Supports( NetworkInterfaceComponent::IPv4 ) )
      {
         versions = "IPv4";
      }
      if ( adapter->Supports( NetworkInterfaceComponent::IPv6 ) )
      {
         if ( versions->Length > 0 )
         {
            versions = String::Concat( versions, " " );
         }
         versions = String::Concat( versions, "IPv6" );
      }
      Console::WriteLine( "  IP version .............................. : {0}",
         versions );
      ShowIPAddresses( properties );

      // The following information is not useful for loopback adapters.
      if ( adapter->NetworkInterfaceType == NetworkInterfaceType::Loopback )
      {
         continue;
      }
      Console::WriteLine( "  DNS suffix .............................. : {0}",
         properties->DnsSuffix );
      String^ label;

      if ( adapter->Supports( NetworkInterfaceComponent::IPv4 ) )
      {
         IPv4InterfaceProperties ^ ipv4 = properties->GetIPv4Properties();
         Console::WriteLine( "  MTU...................................... : {0}",
            ipv4->Mtu );
         if ( ipv4->UsesWins )
         {
            IPAddressCollection ^ winsServers = properties->WinsServersAddresses;
            if ( winsServers->Count > 0 )
            {
               label = "  WINS Servers ............................ :";
               ShowIPAddresses( label, winsServers );
            }
         }
      }
      Console::WriteLine( "  DNS enabled ............................. : {0}",
         properties->IsDnsEnabled );
      Console::WriteLine( "  Dynamically configured DNS .............. : {0}",
         properties->IsDynamicDnsEnabled );
      Console::WriteLine( "  Receive Only ............................ : {0}",
         adapter->IsReceiveOnly );
      Console::WriteLine( "  Multicast ............................... : {0}",
         adapter->SupportsMulticast );
      ShowInterfaceStatistics( adapter );
      Console::WriteLine();
   }
}

public static void ShowNetworkInterfaces()
{
    IPGlobalProperties computerProperties = IPGlobalProperties.GetIPGlobalProperties();
    NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
    Console.WriteLine("Interface information for {0}.{1}     ",
            computerProperties.HostName, computerProperties.DomainName);
    if (nics == null || nics.Length < 1)
    {
        Console.WriteLine("  No network interfaces found.");
        return;
    }

    Console.WriteLine("  Number of interfaces .................... : {0}", nics.Length);
    foreach (NetworkInterface adapter in nics)
    {
        IPInterfaceProperties properties = adapter.GetIPProperties();
        Console.WriteLine();
        Console.WriteLine(adapter.Description);
        Console.WriteLine(String.Empty.PadLeft(adapter.Description.Length,'='));
        Console.WriteLine("  Interface type .......................... : {0}", adapter.NetworkInterfaceType);
        Console.WriteLine("  Physical Address ........................ : {0}",
                   adapter.GetPhysicalAddress().ToString());
        Console.WriteLine("  Operational status ...................... : {0}",
            adapter.OperationalStatus);
        string versions ="";

        // Create a display string for the supported IP versions.
        if (adapter.Supports(NetworkInterfaceComponent.IPv4))
        {
             versions = "IPv4";
         }
        if (adapter.Supports(NetworkInterfaceComponent.IPv6))
        {
            if (versions.Length > 0)
            {
                versions += " ";
             }
            versions += "IPv6";
        }
        Console.WriteLine("  IP version .............................. : {0}", versions);
        ShowIPAddresses(properties);

        // The following information is not useful for loopback adapters.
        if (adapter.NetworkInterfaceType == NetworkInterfaceType.Loopback)
        {
            continue;
        }
        Console.WriteLine("  DNS suffix .............................. : {0}",
            properties.DnsSuffix);

        string label;
        if (adapter.Supports(NetworkInterfaceComponent.IPv4))
        {
            IPv4InterfaceProperties ipv4 = properties.GetIPv4Properties();
            Console.WriteLine("  MTU...................................... : {0}", ipv4.Mtu);
            if (ipv4.UsesWins)
            {

                IPAddressCollection winsServers = properties.WinsServersAddresses;
                if (winsServers.Count > 0)
                {
                    label = "  WINS Servers ............................ :";
                    ShowIPAddresses(label, winsServers);
                }
            }
        }

        Console.WriteLine("  DNS enabled ............................. : {0}",
            properties.IsDnsEnabled);
        Console.WriteLine("  Dynamically configured DNS .............. : {0}",
            properties.IsDynamicDnsEnabled);
        Console.WriteLine("  Receive Only ............................ : {0}",
            adapter.IsReceiveOnly);
        Console.WriteLine("  Multicast ............................... : {0}",
            adapter.SupportsMulticast);
        ShowInterfaceStatistics(adapter);

        Console.WriteLine();
    }
}

Comentarios

Esta clase encapsula los datos de las interfaces de red, también conocidos como adaptadores, en el equipo local. No se crean instancias de esta clase; el GetAllNetworkInterfaces método devuelve una matriz que contiene una instancia de esta clase para cada interfaz de red del equipo local.

Constructores

NetworkInterface()

Inicializa una nueva instancia de la clase NetworkInterface.

Propiedades

Description	Obtiene la descripción de la interfaz.
Id	Obtiene el identificador del adaptador de red.
IPv6LoopbackInterfaceIndex	Obtiene el índice de la interfaz de bucle invertido para IPv6.
IsReceiveOnly	Obtiene un valor Boolean que indica si la interfaz de red está establecida para recibir paquetes de datos únicamente.
LoopbackInterfaceIndex	Obtiene el índice de la interfaz de bucle invertido para IPv4.
Name	Obtiene el nombre del adaptador de red.
NetworkInterfaceType	Obtiene el tipo de interfaz.
OperationalStatus	Obtiene el estado operativo actual de la conexión de red.
Speed	Obtiene la velocidad de la interfaz de red.
SupportsMulticast	Obtiene un valor Boolean que indica si la interfaz de red está habilitada para recibir paquetes de multidifusión.

Métodos

GetAllNetworkInterfaces()	Devuelve objetos que describen las interfaces de red del equipo local.
GetIPProperties()	Devuelve un objeto que describe la configuración de esta interfaz de red.
GetIPStatistics()	Obtiene las estadísticas IP para esta instancia de NetworkInterface.
GetIPv4Statistics()	Obtiene las estadísticas IPv4 para esta instancia de NetworkInterface.
GetIsNetworkAvailable()	Indica si hay disponible alguna conexión de red.
GetPhysicalAddress()	Devuelve la dirección MAC (Media Access Control) o dirección física de este adaptador.
Supports(NetworkInterfaceComponent)	Obtiene un valor Boolean que indica si la interfaz admite el protocolo especificado.

Se aplica a

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