IPAddress IPAddress IPAddress IPAddress Class

Definizione

Fornisce un indirizzo IP (Internet Protocol).Provides an Internet Protocol (IP) address.

public ref class IPAddress
[System.Serializable]
public class IPAddress
type IPAddress = class
Public Class IPAddress
Ereditarietà
IPAddressIPAddressIPAddressIPAddress
Attributi

Esempi

Esempio di codice seguente viene illustrato come eseguire query in un server per ottenere la famiglia di indirizzi e gli indirizzi IP supporta.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 additonal 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 additonal 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
Imports Microsoft.VisualBasic


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 'IPAddresses


      ' 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 'IPAddressAdditionalInfo

      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 additonal address information.
        IPAddressAdditionalInfo()
      End Sub 'Main
    End Class 'TestIPAddress
  End Module
End Namespace

Commenti

Il IPAddress classe contiene l'indirizzo di un computer in una rete IP.The IPAddress class contains the address of a computer on an IP network.

Costruttori

IPAddress(Byte[]) IPAddress(Byte[]) IPAddress(Byte[]) IPAddress(Byte[])

Inizializza una nuova istanza della classe IPAddress con l'indirizzo specificato come matrice Byte.Initializes a new instance of the IPAddress class with the address specified as a Byte array.

IPAddress(Byte[], Int64) IPAddress(Byte[], Int64) IPAddress(Byte[], Int64) IPAddress(Byte[], Int64)

Inizializza una nuova istanza della classe IPAddress con l'indirizzo specificato come matrice Byte e l'identificatore di ambito specificato.Initializes a new instance of the IPAddress class with the address specified as a Byte array and the specified scope identifier.

IPAddress(Int64) IPAddress(Int64) IPAddress(Int64) IPAddress(Int64)

Inizializza una nuova istanza della classe IPAddress con l'indirizzo specificato struttura Int64.Initializes a new instance of the IPAddress class with the address specified as an Int64.

IPAddress(ReadOnlySpan<Byte>) IPAddress(ReadOnlySpan<Byte>) IPAddress(ReadOnlySpan<Byte>) IPAddress(ReadOnlySpan<Byte>)
IPAddress(ReadOnlySpan<Byte>, Int64) IPAddress(ReadOnlySpan<Byte>, Int64) IPAddress(ReadOnlySpan<Byte>, Int64) IPAddress(ReadOnlySpan<Byte>, Int64)

Campi

Any Any Any Any

Fornisce un indirizzo IP che indica che il server deve attendere l'attività dei client su tutte le interfacce di rete.Provides an IP address that indicates that the server must listen for client activity on all network interfaces. Questo campo è di sola lettura.This field is read-only.

Broadcast Broadcast Broadcast Broadcast

Fornisce l'indirizzo di broadcast IP.Provides the IP broadcast address. Questo campo è di sola lettura.This field is read-only.

IPv6Any IPv6Any IPv6Any IPv6Any

Il metodo Bind(EndPoint) utilizza il campo IPv6Any per indicare che una classe Socket deve attendere l'attività dei client su tutte le interfacce di rete.The Bind(EndPoint) method uses the IPv6Any field to indicate that a Socket must listen for client activity on all network interfaces.

IPv6Loopback IPv6Loopback IPv6Loopback IPv6Loopback

Fornisce l'indirizzo di loopback IP.Provides the IP loopback address. Questa proprietà è di sola lettura.This property is read-only.

IPv6None IPv6None IPv6None IPv6None

Fornisce un indirizzo IP che indica che non deve essere utilizzata alcuna interfaccia di rete.Provides an IP address that indicates that no network interface should be used. Questa proprietà è di sola lettura.This property is read-only.

Loopback Loopback Loopback Loopback

Fornisce l'indirizzo di loopback IP.Provides the IP loopback address. Questo campo è di sola lettura.This field is read-only.

None None None None

Fornisce un indirizzo IP che indica che non deve essere utilizzata alcuna interfaccia di rete.Provides an IP address that indicates that no network interface should be used. Questo campo è di sola lettura.This field is read-only.

Proprietà

Address Address Address Address

Indirizzo IP (Internet Protocol).An Internet Protocol (IP) address.

AddressFamily AddressFamily AddressFamily AddressFamily

Ottiene la famiglia di indirizzi dell'indirizzo IP.Gets the address family of the IP address.

IsIPv4MappedToIPv6 IsIPv4MappedToIPv6 IsIPv4MappedToIPv6 IsIPv4MappedToIPv6

Ottiene se l'indirizzo IP è di tipo IPv6 mappato IPv4.Gets whether the IP address is an IPv4-mapped IPv6 address.

IsIPv6LinkLocal IsIPv6LinkLocal IsIPv6LinkLocal IsIPv6LinkLocal

Ottiene se l'indirizzo è di tipo link-local IPv6.Gets whether the address is an IPv6 link local address.

IsIPv6Multicast IsIPv6Multicast IsIPv6Multicast IsIPv6Multicast

Ottiene se l'indirizzo è di tipo multicast globale IPv6.Gets whether the address is an IPv6 multicast global address.

IsIPv6SiteLocal IsIPv6SiteLocal IsIPv6SiteLocal IsIPv6SiteLocal

Ottiene se l'indirizzo è di tipo site-local IPv6.Gets whether the address is an IPv6 site local address.

IsIPv6Teredo IsIPv6Teredo IsIPv6Teredo IsIPv6Teredo

Ottiene un valore che indica se l'indirizzo è di tipo Teredo IPv6.Gets whether the address is an IPv6 Teredo address.

ScopeId ScopeId ScopeId ScopeId

Ottiene o imposta l'identificatore di ambito dell'indirizzo IPv6.Gets or sets the IPv6 address scope identifier.

Metodi

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Confronta due indirizzi IP.Compares two IP addresses.

GetAddressBytes() GetAddressBytes() GetAddressBytes() GetAddressBytes()

Fornisce una copia della classe IPAddress come una matrice di byte.Provides a copy of the IPAddress as an array of bytes.

GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Restituisce un valore hash per un indirizzo IP.Returns a hash value for an IP address.

GetType() GetType() GetType() GetType()

Ottiene l'oggetto Type dell'istanza corrente.Gets the Type of the current instance.

(Inherited from Object)
HostToNetworkOrder(Int16) HostToNetworkOrder(Int16) HostToNetworkOrder(Int16) HostToNetworkOrder(Int16)

Converte un valore short dall'ordine dei byte dell'host a quello della rete.Converts a short value from host byte order to network byte order.

HostToNetworkOrder(Int32) HostToNetworkOrder(Int32) HostToNetworkOrder(Int32) HostToNetworkOrder(Int32)

Converte un valore intero dall'ordine dei byte dell'host a quello della rete.Converts an integer value from host byte order to network byte order.

HostToNetworkOrder(Int64) HostToNetworkOrder(Int64) HostToNetworkOrder(Int64) HostToNetworkOrder(Int64)

Converte un valore long dall'ordine dei byte dell'host a quello della rete.Converts a long value from host byte order to network byte order.

IsLoopback(IPAddress) IsLoopback(IPAddress) IsLoopback(IPAddress) IsLoopback(IPAddress)

Indica se l'indirizzo IP specificato è quello di loopback.Indicates whether the specified IP address is the loopback address.

MapToIPv4() MapToIPv4() MapToIPv4() MapToIPv4()

Esegue il mapping dell'oggetto IPAddress a un indirizzo IPv4.Maps the IPAddress object to an IPv4 address.

MapToIPv6() MapToIPv6() MapToIPv6() MapToIPv6()

Esegue il mapping dell'oggetto IPAddress a un indirizzo IPv6.Maps the IPAddress object to an IPv6 address.

MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Crea una copia superficiale dell'oggetto Object corrente.Creates a shallow copy of the current Object.

(Inherited from Object)
NetworkToHostOrder(Int16) NetworkToHostOrder(Int16) NetworkToHostOrder(Int16) NetworkToHostOrder(Int16)

Converte un valore short dall'ordine dei byte della rete a quello dell'host.Converts a short value from network byte order to host byte order.

NetworkToHostOrder(Int32) NetworkToHostOrder(Int32) NetworkToHostOrder(Int32) NetworkToHostOrder(Int32)

Converte un valore intero dall'ordine dei byte della rete a quello dell'host.Converts an integer value from network byte order to host byte order.

NetworkToHostOrder(Int64) NetworkToHostOrder(Int64) NetworkToHostOrder(Int64) NetworkToHostOrder(Int64)

Converte un valore long dall'ordine dei byte della rete a quello dell'host.Converts a long value from network byte order to host byte order.

Parse(ReadOnlySpan<Char>) Parse(ReadOnlySpan<Char>) Parse(ReadOnlySpan<Char>) Parse(ReadOnlySpan<Char>)
Parse(String) Parse(String) Parse(String) Parse(String)

Converte una stringa di indirizzi IP in un'istanza di IPAddress.Converts an IP address string to an IPAddress instance.

ToString() ToString() ToString() ToString()

Converte un indirizzo Internet nella relativa notazione standard.Converts an Internet address to its standard notation.

TryFormat(Span<Char>, Int32) TryFormat(Span<Char>, Int32) TryFormat(Span<Char>, Int32) TryFormat(Span<Char>, Int32)
TryParse(ReadOnlySpan<Char>, IPAddress) TryParse(ReadOnlySpan<Char>, IPAddress) TryParse(ReadOnlySpan<Char>, IPAddress) TryParse(ReadOnlySpan<Char>, IPAddress)
TryParse(String, IPAddress) TryParse(String, IPAddress) TryParse(String, IPAddress) TryParse(String, IPAddress)

Determina se una stringa è un indirizzo IP valido.Determines whether a string is a valid IP address.

TryWriteBytes(Span<Byte>, Int32) TryWriteBytes(Span<Byte>, Int32) TryWriteBytes(Span<Byte>, Int32) TryWriteBytes(Span<Byte>, Int32)

Si applica a