IPAddress Clase

Definición

Espacio de nombres:

System.Net

Ensamblado:

System.Net.Primitives.dll

Source:

IPAddress.cs

Proporciona una dirección de protocolo de Internet (IP).

public ref class IPAddress : IParsable<System::Net::IPAddress ^>, ISpanFormattable, ISpanParsable<System::Net::IPAddress ^>, IUtf8SpanFormattable

public class IPAddress : IParsable<System.Net.IPAddress>, ISpanFormattable, ISpanParsable<System.Net.IPAddress>, IUtf8SpanFormattable

type IPAddress = class
    interface ISpanFormattable
    interface IFormattable
    interface ISpanParsable<IPAddress>
    interface IParsable<IPAddress>
    interface IUtf8SpanFormattable

Public Class IPAddress
Implements IParsable(Of IPAddress), ISpanFormattable, ISpanParsable(Of IPAddress), IUtf8SpanFormattable

Herencia

Object

IPAddress

Implementaciones

IFormattable IParsable<IPAddress> IParsable<TSelf> ISpanFormattable ISpanParsable<IPAddress> IUtf8SpanFormattable

Ejemplos

En el ejemplo de código siguiente se muestra cómo consultar un servidor para obtener las direcciones de familia y las direcciones IP que admite.

// This program shows how to use the IPAddress class to obtain a server 
// IP addressess and related information.
#using <System.dll>

using namespace System;
using namespace System::Net;
using namespace System::Net::Sockets;
using namespace System::Text::RegularExpressions;

/**
* The IPAddresses method obtains the selected server IP address information.
* It then displays the type of address family supported by the server and its 
* IP address in standard and byte format.
**/
void IPAddresses( String^ server )
{
   try
   {
      System::Text::ASCIIEncoding^ ASCII = gcnew System::Text::ASCIIEncoding;
      
      // Get server related information.
      IPHostEntry^ heserver = Dns::GetHostEntry( server );
      
      // Loop on the AddressList
      System::Collections::IEnumerator^ myEnum = heserver->AddressList->GetEnumerator();
      while ( myEnum->MoveNext() )
      {
         IPAddress^ curAdd = safe_cast<IPAddress^>(myEnum->Current);
         
         // Display the type of address family supported by the server. If the
         // server is IPv6-enabled this value is: InterNetworkV6. If the server
         // is also IPv4-enabled there will be an additional value of InterNetwork.
         Console::WriteLine( "AddressFamily: {0}", curAdd->AddressFamily );
         
         // Display the ScopeId property in case of IPV6 addresses.
         if ( curAdd->AddressFamily.ToString() == ProtocolFamily::InterNetworkV6.ToString() )
                  Console::WriteLine( "Scope Id: {0}", curAdd->ScopeId );

         // Display the server IP address in the standard format. In 
         // IPv4 the format will be dotted-quad notation, in IPv6 it will be
         // in in colon-hexadecimal notation.
         Console::WriteLine( "Address: {0}", curAdd );
         
         // Display the server IP address in byte format.
         Console::Write( "AddressBytes: " );
         
         array<Byte>^bytes = curAdd->GetAddressBytes();
         for ( int i = 0; i < bytes->Length; i++ )
         {
            Console::Write( bytes[ i ] );

         }

         Console::WriteLine( "\r\n" );
      }
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "[DoResolve] Exception: {0}", e );
   }

}


// This IPAddressAdditionalInfo displays additional server address information.
void IPAddressAdditionalInfo()
{
   try
   {
      // Display the flags that show if the server supports IPv4 or IPv6
      // address schemas.
      Console::WriteLine( "\r\nSupportsIPv4: {0}", Socket::SupportsIPv4 );
      Console::WriteLine( "SupportsIPv6: {0}", Socket::SupportsIPv6 );
      if ( Socket::SupportsIPv6 )
      {
         // Display the server Any address. This IP address indicates that the server 
         // should listen for client activity on all network interfaces. 
         Console::WriteLine( "\r\nIPv6Any: {0}", IPAddress::IPv6Any );

         // Display the server loopback address. 
         Console::WriteLine( "IPv6Loopback: {0}", IPAddress::IPv6Loopback );

         // Used during autoconfiguration first phase.
         Console::WriteLine( "IPv6None: {0}", IPAddress::IPv6None );
         Console::WriteLine( "IsLoopback(IPv6Loopback): {0}", IPAddress::IsLoopback( IPAddress::IPv6Loopback ) );
      }
      Console::WriteLine( "IsLoopback(Loopback): {0}", IPAddress::IsLoopback( IPAddress::Loopback ) );
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "[IPAddresses] Exception: {0}", e );
   }

}

int main()
{
   array<String^>^args = Environment::GetCommandLineArgs();
   String^ server = nullptr;

   // Define a regular expression to parse user's input.
   // This is a security check. It allows only
   // alphanumeric input string between 2 to 40 character long.
   Regex^ rex = gcnew Regex( "^[a-zA-Z]\\w{1,39}$" );
   if ( args->Length < 2 )
   {
      // If no server name is passed as an argument to this program, use the current 
      // server name as default.
      server = Dns::GetHostName();
      Console::WriteLine( "Using current host: {0}", server );
   }
   else
   {
      server = args[ 1 ];
      if (  !(rex->Match(server))->Success )
      {
         Console::WriteLine( "Input string format not allowed." );
         return  -1;
      }
   }

   // Get the list of the addresses associated with the requested server.
   IPAddresses( server );

   // Get additional address information.
   IPAddressAdditionalInfo();
}

// This program shows how to use the IPAddress class to obtain a server
// IP addressess and related information.

using System;
using System.Net;
using System.Net.Sockets;
using System.Text.RegularExpressions;

namespace Mssc.Services.ConnectionManagement
{

  class TestIPAddress
  {

    /**
      * The IPAddresses method obtains the selected server IP address information.
      * It then displays the type of address family supported by the server and its
      * IP address in standard and byte format.
      **/
    private static void IPAddresses(string server)
    {
      try
      {
        System.Text.ASCIIEncoding ASCII = new System.Text.ASCIIEncoding();

        // Get server related information.
        IPHostEntry heserver = Dns.GetHostEntry(server);

        // Loop on the AddressList
        foreach (IPAddress curAdd in heserver.AddressList)
        {


          // Display the type of address family supported by the server. If the
          // server is IPv6-enabled this value is: InterNetworkV6. If the server
          // is also IPv4-enabled there will be an additional value of InterNetwork.
          Console.WriteLine("AddressFamily: " + curAdd.AddressFamily.ToString());

          // Display the ScopeId property in case of IPV6 addresses.
          if(curAdd.AddressFamily.ToString() == ProtocolFamily.InterNetworkV6.ToString())
            Console.WriteLine("Scope Id: " + curAdd.ScopeId.ToString());


          // Display the server IP address in the standard format. In
          // IPv4 the format will be dotted-quad notation, in IPv6 it will be
          // in in colon-hexadecimal notation.
          Console.WriteLine("Address: " + curAdd.ToString());

          // Display the server IP address in byte format.
          Console.Write("AddressBytes: ");

          Byte[] bytes = curAdd.GetAddressBytes();
          for (int i = 0; i < bytes.Length; i++)
          {
            Console.Write(bytes[i]);
          }

          Console.WriteLine("\r\n");
        }
      }
      catch (Exception e)
      {
        Console.WriteLine("[DoResolve] Exception: " + e.ToString());
      }
    }

    // This IPAddressAdditionalInfo displays additional server address information.
    private static void IPAddressAdditionalInfo()
    {
      try
      {
        // Display the flags that show if the server supports IPv4 or IPv6
        // address schemas.
        Console.WriteLine("\r\nSupportsIPv4: " + Socket.SupportsIPv4);
        Console.WriteLine("SupportsIPv6: " + Socket.SupportsIPv6);

        if (Socket.SupportsIPv6)
        {
          // Display the server Any address. This IP address indicates that the server
          // should listen for client activity on all network interfaces.
          Console.WriteLine("\r\nIPv6Any: " + IPAddress.IPv6Any.ToString());

          // Display the server loopback address.
          Console.WriteLine("IPv6Loopback: " + IPAddress.IPv6Loopback.ToString());

          // Used during autoconfiguration first phase.
          Console.WriteLine("IPv6None: " + IPAddress.IPv6None.ToString());

          Console.WriteLine("IsLoopback(IPv6Loopback): " + IPAddress.IsLoopback(IPAddress.IPv6Loopback));
        }
        Console.WriteLine("IsLoopback(Loopback): " + IPAddress.IsLoopback(IPAddress.Loopback));
      }
      catch (Exception e)
      {
        Console.WriteLine("[IPAddresses] Exception: " + e.ToString());
      }
    }

    public static void Main(string[] args)
    {
      string server = null;

      // Define a regular expression to parse user's input.
      // This is a security check. It allows only
      // alphanumeric input string between 2 to 40 character long.
      Regex rex = new Regex(@"^[a-zA-Z]\w{1,39}$");

      if (args.Length < 1)
      {
        // If no server name is passed as an argument to this program, use the current
        // server name as default.
        server = Dns.GetHostName();
        Console.WriteLine("Using current host: " + server);
      }
      else
      {
        server = args[0];
        if (!(rex.Match(server)).Success)
        {
          Console.WriteLine("Input string format not allowed.");
          return;
        }
      }

      // Get the list of the addresses associated with the requested server.
      IPAddresses(server);

      // Get additional address information.
      IPAddressAdditionalInfo();
    }
  }
}

' This program shows how to use the IPAddress class to obtain a server 
' IP addressess and related information.
Imports System.Net
Imports System.Net.Sockets
Imports System.Text.RegularExpressions

Namespace Mssc.Services.ConnectionManagement
  Module M_TestIPAddress

    Class TestIPAddress

      'The IPAddresses method obtains the selected server IP address information.
      'It then displays the type of address family supported by the server and 
      'its IP address in standard and byte format.
      Private Shared Sub IPAddresses(ByVal server As String)
        Try
          Dim ASCII As New System.Text.ASCIIEncoding()

          ' Get server related information.
          Dim heserver As IPHostEntry = Dns.Resolve(server)

          ' Loop on the AddressList
          Dim curAdd As IPAddress
          For Each curAdd In heserver.AddressList

            ' Display the type of address family supported by the server. If the
            ' server is IPv6-enabled this value is: InterNetworkV6. If the server
            ' is also IPv4-enabled there will be an additional value of InterNetwork.
            Console.WriteLine(("AddressFamily: " + curAdd.AddressFamily.ToString()))

            ' Display the ScopeId property in case of IPV6 addresses.
            If curAdd.AddressFamily.ToString() = ProtocolFamily.InterNetworkV6.ToString() Then
              Console.WriteLine(("Scope Id: " + curAdd.ScopeId.ToString()))
            End If

            ' Display the server IP address in the standard format. In 
            ' IPv4 the format will be dotted-quad notation, in IPv6 it will be
            ' in in colon-hexadecimal notation.
            Console.WriteLine(("Address: " + curAdd.ToString()))

            ' Display the server IP address in byte format.
            Console.Write("AddressBytes: ")



            Dim bytes As [Byte]() = curAdd.GetAddressBytes()
            Dim i As Integer
            For i = 0 To bytes.Length - 1
              Console.Write(bytes(i))
            Next i
            Console.WriteLine(ControlChars.Cr + ControlChars.Lf)
          Next curAdd 

        Catch e As Exception
          Console.WriteLine(("[DoResolve] Exception: " + e.ToString()))
        End Try
      End Sub


      ' This IPAddressAdditionalInfo displays additional server address information.
      Private Shared Sub IPAddressAdditionalInfo()
        Try
          ' Display the flags that show if the server supports IPv4 or IPv6
          ' address schemas.
          Console.WriteLine((ControlChars.Cr + ControlChars.Lf + "SupportsIPv4: " + Socket.SupportsIPv4.ToString()))
          Console.WriteLine(("SupportsIPv6: " + Socket.SupportsIPv6.ToString()))

          If Socket.SupportsIPv6 Then
            ' Display the server Any address. This IP address indicates that the server 
            ' should listen for client activity on all network interfaces. 
            Console.WriteLine((ControlChars.Cr + ControlChars.Lf + "IPv6Any: " + IPAddress.IPv6Any.ToString()))

            ' Display the server loopback address. 
            Console.WriteLine(("IPv6Loopback: " + IPAddress.IPv6Loopback.ToString()))

            ' Used during autoconfiguration first phase.
            Console.WriteLine(("IPv6None: " + IPAddress.IPv6None.ToString()))

            Console.WriteLine(("IsLoopback(IPv6Loopback): " + IPAddress.IsLoopback(IPAddress.IPv6Loopback).ToString()))
          End If
          Console.WriteLine(("IsLoopback(Loopback): " + IPAddress.IsLoopback(IPAddress.Loopback).ToString()))
        Catch e As Exception
          Console.WriteLine(("[IPAddresses] Exception: " + e.ToString()))
        End Try
      End Sub

      Public Shared Sub Main(ByVal args() As String)
        Dim server As String = Nothing

        ' Define a regular expression to parse user's input.
        ' This is a security check. It allows only
        ' alphanumeric input string between 2 to 40 character long.
        Dim rex As New Regex("^[a-zA-Z]\w{1,39}$")

        If args.Length < 1 Then
          ' If no server name is passed as an argument to this program, use the current 
          ' server name as default.
          server = Dns.GetHostName()
          Console.WriteLine(("Using current host: " + server))
        Else
          server = args(0)
          If Not rex.Match(server).Success Then
            Console.WriteLine("Input string format not allowed.")
            Return
          End If
        End If

        ' Get the list of the addresses associated with the requested server.
        IPAddresses(server)

        ' Get additional address information.
        IPAddressAdditionalInfo()
      End Sub
    End Class
  End Module
End Namespace

Comentarios

La IPAddress clase contiene la dirección de un equipo en una red IP.

Constructores

IPAddress(Byte[])	Inicializa una nueva instancia de la clase IPAddress con la dirección especificada como matriz Byte.
IPAddress(Byte[], Int64)	Inicializa una nueva instancia de la clase IPAddress con la dirección especificada como matriz Byte y el identificador de ámbito especificado.
IPAddress(Int64)	Inicializa una nueva instancia de la clase IPAddress con la dirección especificada como Int64.
IPAddress(ReadOnlySpan<Byte>)	Inicializa una nueva instancia de la clase IPAddress con la dirección especificada como intervalo de bytes.
IPAddress(ReadOnlySpan<Byte>, Int64)	Inicializa una nueva instancia de la clase IPAddress con la dirección especificada como intervalo de bytes y el identificador de ámbito especificado.

Campos

Any	Proporciona una dirección IP que indica que el servidor debe escuchar la actividad del cliente en todas las interfaces de red. Este campo es de solo lectura.
Broadcast	Proporciona la dirección de difusión IP. Este campo es de solo lectura.
IPv6Any	El método Bind(EndPoint) usa el campo IPv6Any para indicar que un objeto Socket debe escuchar la actividad del cliente en todas las interfaces de red.
IPv6Loopback	Proporciona la dirección de retorno de bucle IP. Esta propiedad es de sólo lectura.
IPv6None	Proporciona una dirección IP que indica que no debe utilizarse ninguna interfaz de red. Esta propiedad es de sólo lectura.
Loopback	Proporciona la dirección de retorno de bucle IP. Este campo es de solo lectura.
None	Proporciona una dirección IP que indica que no debe utilizarse ninguna interfaz de red. Este campo es de solo lectura.

Propiedades

Address	Obsoletos. Dirección Protocolo Internet (Internet Protocol, IP).
AddressFamily	Obtiene la familia de direcciones de la dirección IP.
IsIPv4MappedToIPv6	Determina si la dirección IP es una dirección IPv6 de IPv4 asignado.
IsIPv6LinkLocal	Determina si la dirección es una dirección local de vínculo IPv6.
IsIPv6Multicast	Determina si la dirección es una dirección de multidifusión global IPv6.
IsIPv6SiteLocal	Determina si la dirección es una dirección local de sitio IPv6.
IsIPv6Teredo	Obtiene un valor que indica si la dirección es una dirección Teredo IPv6.
IsIPv6UniqueLocal	Obtiene si la dirección es una dirección local única IPv6.
ScopeId	Obtiene o establece el identificador de ámbito de las direcciones IPv6.

Métodos

Equals(Object)	Compara dos direcciones IP.
GetAddressBytes()	Proporciona una copia de IPAddress como una matriz de bytes en orden de red.
GetHashCode()	Devuelve un valor hash de una dirección IP.
GetType()	Obtiene el Type de la instancia actual. (Heredado de Object)
HostToNetworkOrder(Int16)	Convierte un valor corto del orden de bytes del host al orden de bytes de la red.
HostToNetworkOrder(Int32)	Convierte un valor entero del orden de bytes del host al orden de bytes de la red.
HostToNetworkOrder(Int64)	Convierte un valor largo del orden de bytes del host al orden de bytes de la red.
IsLoopback(IPAddress)	Indica si la dirección IP especificada es la dirección de retorno de bucle.
MapToIPv4()	Asigna el objeto IPAddress en una dirección IPv4.
MapToIPv6()	Asigna el objeto IPAddress a una dirección IPv6.
MemberwiseClone()	Crea una copia superficial del Object actual. (Heredado de Object)
NetworkToHostOrder(Int16)	Convierte un valor corto del orden de bytes de la red al orden de bytes del host.
NetworkToHostOrder(Int32)	Convierte un valor entero del orden de bytes de la red al orden de bytes del host.
NetworkToHostOrder(Int64)	Convierte un valor largo del orden de bytes de la red al orden de bytes del host.
Parse(ReadOnlySpan<Char>)	Convierte una dirección IP representada como un intervalo de caracteres en una instancia de IPAddress.
Parse(String)	Convierte una cadena de dirección IP en una instancia de IPAddress.
ToString()	Convierte una dirección de Internet a su notación estándar.
TryFormat(Span<Byte>, Int32)	Intenta dar formato a la dirección IP actual en el intervalo proporcionado.
TryFormat(Span<Char>, Int32)	Intenta dar formato a la dirección IP actual en el intervalo proporcionado.
TryParse(ReadOnlySpan<Char>, IPAddress)	Intenta analizar un intervalo de caracteres en un valor.
TryParse(String, IPAddress)	Determina si una cadena es una dirección IP válida.
TryWriteBytes(Span<Byte>, Int32)	Intenta escribir la dirección IP actual en un intervalo de bytes en orden de red.

Implementaciones de interfaz explícitas

IFormattable.ToString(String, IFormatProvider)	Da formato al valor de la instancia actual usando el formato especificado.
IParsable<IPAddress>.Parse(String, IFormatProvider)	Analiza una cadena en un valor.
IParsable<IPAddress>.TryParse(String, IFormatProvider, IPAddress)	Intenta analizar una cadena en .IPAddress
ISpanFormattable.TryFormat(Span<Char>, Int32, ReadOnlySpan<Char>, IFormatProvider)	Intenta dar formato al valor de la instancia actual en el intervalo de caracteres proporcionado.
ISpanParsable<IPAddress>.Parse(ReadOnlySpan<Char>, IFormatProvider)	Analiza un intervalo de caracteres en un valor.
ISpanParsable<IPAddress>.TryParse(ReadOnlySpan<Char>, IFormatProvider, IPAddress)	Intenta analizar un intervalo de caracteres en un valor.
IUtf8SpanFormattable.TryFormat(Span<Byte>, Int32, ReadOnlySpan<Char>, IFormatProvider)	Intenta dar formato al valor de la instancia actual como UTF-8 en el intervalo de bytes proporcionado.