IPAddress 클래스

IP(인터넷 프로토콜) 주소를 제공합니다.

네임스페이스: System.Net
어셈블리: System(system.dll)

구문

‘선언
<SerializableAttribute> _
Public Class IPAddress
‘사용 방법
Dim instance As IPAddress

[SerializableAttribute] 
public class IPAddress

[SerializableAttribute] 
public ref class IPAddress

/** @attribute SerializableAttribute() */ 
public class IPAddress

SerializableAttribute 
public class IPAddress

설명

IPAddress 클래스에는 컴퓨터의 IP 네트워크 주소가 포함되어 있습니다.

예제

다음 코드 예제에서는 서버를 쿼리하여 서버가 지원하는 IP 주소와 패밀리 주소를 가져오는 방법을 보여 줍니다.

' This program shows how to use the IPAddress class to obtain a server 
' IP addressess and related information.
Imports System
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: InternNetworkV6. 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.
        '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

// 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.Resolve(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: InternNetworkV6. 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.
import System.*;
import System.Net.*;
import System.Net.Sockets.*;
import System.Text.RegularExpressions.*;

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.Resolve(server);
            // Loop on the AddressList
            for (int iCtr = 0; iCtr < heserver.get_AddressList().length;
                iCtr++) {            
                IPAddress curAdd = heserver.get_AddressList()[iCtr];

                // Display the type of address family supported by the server. 
                // If the server is IPv6-enabled this value is:InternNetworkV6.
                // If the server is also IPv4-enabled there will be an 
                // additional value of InterNetwork.
                Console.WriteLine(("AddressFamily: " 
                    + curAdd.get_AddressFamily().ToString()));

                // Display the ScopeId property in case of IPV6 addresses.
                if (curAdd.get_AddressFamily().ToString().equals(
                        ProtocolFamily.InterNetworkV6.ToString())) {
                    Console.WriteLine(("Scope Id: " 
                        +(new Long(curAdd.get_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: ");

                ubyte bytes[] = curAdd.GetAddressBytes();
                for (int i = 0; i < bytes.length; i++) {
                    Console.Write(bytes[i]);
                }
                Console.WriteLine("\r\n");
            }
        }
        catch (System.Exception e) {
            Console.WriteLine(("[DoResolve] Exception: " + e.ToString()));
        }    
    } //IPAddresses

    // 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: " 
                + System.Convert.ToString(Socket.get_SupportsIPv4()));
            Console.WriteLine("SupportsIPv6: " 
                + System.Convert.ToString(Socket.get_SupportsIPv6()));
            if (Socket.get_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): " 
                + System.Convert.ToString(IPAddress.
                IsLoopback(IPAddress.Loopback))));
        }
        catch (System.Exception e) {
            Console.WriteLine(("[IPAddresses] Exception: " + e.ToString()));
        } 
    } //IPAddressAdditionalInfo

    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).get_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();
    } //main
} //TestIPAddress

상속 계층 구조

System.Object
  System.Net.IPAddress

스레드로부터의 안전성

이 형식의 모든 public static(Visual Basic의 경우 Shared) 멤버는 스레드로부터 안전합니다. 인터페이스 멤버는 스레드로부터 안전하지 않습니다.

플랫폼

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

.NET Framework에서 모든 플래폼의 모든 버전을 지원하지는 않습니다. 지원되는 버전의 목록은 시스템 요구 사항을 참조하십시오.

버전 정보

.NET Framework

2.0, 1.1, 1.0에서 지원

.NET Compact Framework

2.0, 1.0에서 지원

참고 항목

참조

IPAddress 멤버
System.Net 네임스페이스