IPAddress Classe

Definição

Fornece um endereço IP (Internet Protocol).Provides an Internet Protocol (IP) address.

public ref class IPAddress
public class IPAddress
[System.Serializable]
public class IPAddress
type IPAddress = class
[<System.Serializable>]
type IPAddress = class
Public Class IPAddress
Herança
IPAddress
Atributos

Exemplos

O exemplo de código a seguir mostra como consultar um servidor para obter os endereços de família e os endereços IP aos quais ele dá suporte.The following code example shows how to query a server to obtain the family addresses and the IP addresses it supports.

// 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

Comentários

A IPAddress classe contém o endereço de um computador em uma rede IP.The IPAddress class contains the address of a computer on an IP network.

Construtores

IPAddress(Byte[])

Inicializa uma nova instância da classe IPAddress com o endereço especificado como uma matriz Byte.Initializes a new instance of the IPAddress class with the address specified as a Byte array.

IPAddress(Byte[], Int64)

Inicializa uma nova instância da classe IPAddress com o endereço especificado como uma matriz Byte e o identificador de escopo especificado.Initializes a new instance of the IPAddress class with the address specified as a Byte array and the specified scope identifier.

IPAddress(Int64)

Inicializa uma nova instância da classe IPAddress com o endereço especificado como um Int64.Initializes a new instance of the IPAddress class with the address specified as an Int64.

IPAddress(ReadOnlySpan<Byte>)

Inicializa uma nova instância da classe IPAddress com o endereço especificado como um intervalo de bytes.Initializes a new instance of the IPAddress class with the address specified as a byte span.

IPAddress(ReadOnlySpan<Byte>, Int64)

Inicializa uma nova instância da classe IPAddress com o endereço especificado como um intervalo de bytes e o identificador de escopo especificado.Initializes a new instance of the IPAddress class with the address specified as a byte span and the specified scope identifier.

Campos

Any

Fornece um endereço IP que indica que o servidor deve ouvir a atividade do cliente em todas as interfaces de rede.Provides an IP address that indicates that the server must listen for client activity on all network interfaces. Este campo é somente leitura.This field is read-only.

Broadcast

Fornece o endereço IP de difusão.Provides the IP broadcast address. Este campo é somente leitura.This field is read-only.

IPv6Any

O método Bind(EndPoint) utiliza o campo IPv6Any para indicar que um Socket deve escutar a atividade de cliente em todos os adaptadores de rede.The Bind(EndPoint) method uses the IPv6Any field to indicate that a Socket must listen for client activity on all network interfaces.

IPv6Loopback

Fornece o endereço de loopback de IP.Provides the IP loopback address. Esta propriedade é somente para leitura.This property is read-only.

IPv6None

Fornece um endereço IP que indica que nenhum adaptador de rede deve ser usado.Provides an IP address that indicates that no network interface should be used. Esta propriedade é somente para leitura.This property is read-only.

Loopback

Fornece o endereço de loopback de IP.Provides the IP loopback address. Este campo é somente leitura.This field is read-only.

None

Fornece um endereço IP que indica que nenhum adaptador de rede deve ser usado.Provides an IP address that indicates that no network interface should be used. Este campo é somente leitura.This field is read-only.

Propriedades

Address
Obsoleto.
Obsoleto.
Obsoleto.

Um endereço IP (Internet Protocol).An Internet Protocol (IP) address.

AddressFamily

Obtém a família de endereços do endereço IP.Gets the address family of the IP address.

IsIPv4MappedToIPv6

Determina se o endereço IP é um endereço IPv6 mapeado por IPv4.Gets whether the IP address is an IPv4-mapped IPv6 address.

IsIPv6LinkLocal

Determina se o endereço é um endereço local do link IPv6.Gets whether the address is an IPv6 link local address.

IsIPv6Multicast

Determina se o endereço é um endereço global multicast IPv6.Gets whether the address is an IPv6 multicast global address.

IsIPv6SiteLocal

Determina se o endereço é um endereço local de site IPv6.Gets whether the address is an IPv6 site local address.

IsIPv6Teredo

Determina se o endereço é um endereço IPv6 Teredo.Gets whether the address is an IPv6 Teredo address.

ScopeId

Obtém ou define o identificador de escopo de endereço IPv6.Gets or sets the IPv6 address scope identifier.

Métodos

Equals(Object)

Compara dois endereços IP.Compares two IP addresses.

GetAddressBytes()

Fornece uma cópia do IPAddress como uma matriz de bytes.Provides a copy of the IPAddress as an array of bytes.

GetHashCode()

Retorna um valor de hash para um endereço IP.Returns a hash value for an IP address.

GetType()

Obtém o Type da instância atual.Gets the Type of the current instance.

(Herdado de Object)
HostToNetworkOrder(Int16)

Converte um valor resumido da ordem de byte de host em ordem de byte de rede.Converts a short value from host byte order to network byte order.

HostToNetworkOrder(Int32)

Converte um valor inteiro da ordem de byte de host para a ordem de byte de rede.Converts an integer value from host byte order to network byte order.

HostToNetworkOrder(Int64)

Converte um valor longo de ordem de byte de host em ordem de byte de rede.Converts a long value from host byte order to network byte order.

IsLoopback(IPAddress)

Indica se o endereço IP especificado é o endereço de loopback.Indicates whether the specified IP address is the loopback address.

MapToIPv4()

Mapeia o objeto IPAddress para um endereço IPv4.Maps the IPAddress object to an IPv4 address.

MapToIPv6()

Mapeia o objeto IPAddress para um endereço IPv6.Maps the IPAddress object to an IPv6 address.

MemberwiseClone()

Cria uma cópia superficial do Object atual.Creates a shallow copy of the current Object.

(Herdado de Object)
NetworkToHostOrder(Int16)

Converte um valor resumido da ordem de byte de rede em ordem de byte de host.Converts a short value from network byte order to host byte order.

NetworkToHostOrder(Int32)

Converte um valor inteiro da ordem de byte de rede para a ordem de byte de host.Converts an integer value from network byte order to host byte order.

NetworkToHostOrder(Int64)

Converte um valor longo de ordem de byte de rede em ordem de byte de host.Converts a long value from network byte order to host byte order.

Parse(ReadOnlySpan<Char>)

Converte um endereço IP representado como um intervalo de caracteres em uma instância de IPAddress.Converts an IP address represented as a character span to an IPAddress instance.

Parse(String)

Converte uma cadeia de caracteres de endereços IP em uma instância IPAddress.Converts an IP address string to an IPAddress instance.

ToString()

Converte um endereço de Internet em uma notação padrão.Converts an Internet address to its standard notation.

TryFormat(Span<Char>, Int32)

Tenta formatar o endereço IP atual no intervalo fornecido.Tries to format the current IP address into the provided span.

TryParse(ReadOnlySpan<Char>, IPAddress)

Determina se o intervalo de bytes especificado representa um endereço IP válido.Determines whether the specified byte span represents a valid IP address.

TryParse(String, IPAddress)

Determina se uma cadeia de caracteres é um endereço IP válido.Determines whether a string is a valid IP address.

TryWriteBytes(Span<Byte>, Int32)

Tenta gravar o endereço IP atual em um intervalo de bytes.Tries to write the current IP address into a span of bytes.

Aplica-se a