NetworkInterfaceComponent 列挙体とは何？わかりやすく解説 Weblio辞書

.NET Framework クラスライブラリリファレンス

索引トップランキング

NetworkInterfaceComponent 列挙体

メモ : この列挙体は、.NET Framework version 2.0 で新しく追加されたものです。

ネットワークインターフェイスでサポートされるインターネットプロトコルのバージョンを示します。

名前空間: System.Net.NetworkInformation
アセンブリ: System (system.dll 内)
構文

Visual Basic (宣言)

Public Enumeration NetworkInterfaceComponent

Visual Basic (使用法)

Dim instance As NetworkInterfaceComponent

public enum NetworkInterfaceComponent

C++

public enum class NetworkInterfaceComponent

public enum NetworkInterfaceComponent

JScript

public enum NetworkInterfaceComponent

メンバ

	メンバ名	説明
	IPv4	インターネットプロトコル Version 4。
	IPv6	インターネットプロトコル Version 6。

解説

この列挙体の値は、Supports メソッドで使用され、ネットワークインターフェイスでサポートされるインターネットプロトコルのバージョンを示します。

使用例

ネットワークインターフェイスが IPv4 をサポートしているかどうかをチェックするコード例を次に示します。

Visual Basic

Public Shared Sub DisplayIPv4NetworkInterfaces()
 
    Dim nics As NetworkInterface() = NetworkInterface.GetAllNetworkInterfaces()
    Dim properties As IPGlobalProperties =
 IPGlobalProperties.GetIPGlobalProperties()
    Console.WriteLine("IPv4 interface information for {0}.{1}",
 properties.HostName, properties.DomainName)
    
    Dim adapter As NetworkInterface
    For Each adapter In
  nics
        ' Only display informatin for interfaces that support IPv4.
        If adapter.Supports(NetworkInterfaceComponent.IPv4) =
 False Then
            GoTo ContinueForEach1
        End If
        Console.WriteLine()
        Console.WriteLine(adapter.Description)
        ' Underline the description.
        Console.WriteLine(String.Empty.PadLeft(adapter.Description.Length,
 "="c))
        Dim adapterProperties As IPInterfaceProperties
 = adapter.GetIPProperties()
        ' Try to get the IPv4 interface properties.
        Dim p As IPv4InterfaceProperties =
 adapterProperties.GetIPv4Properties()
        
        If p Is Nothing
 Then
            Console.WriteLine("No IPv4 information is available
 for this interface.")
            GoTo ContinueForEach1
        End If
        ' Display the IPv4 specific data.
        Console.WriteLine("  Index .............................
 : {0}", p.Index)
        Console.WriteLine("  MTU ...............................
 : {0}", p.Mtu)
        Console.WriteLine("  APIPA active.......................
 : {0}", p.IsAutomaticPrivateAddressingActive)
        Console.WriteLine("  APIPA enabled......................
 : {0}", p.IsAutomaticPrivateAddressingEnabled)
        Console.WriteLine("  Forwarding enabled.................
 : {0}", p.IsForwardingEnabled)
        Console.WriteLine("  Uses WINS .........................
 : {0}", p.UsesWins)
    ContinueForEach1:
    Next adapter

End Sub 'DisplayIPv4NetworkInterfaces

public static void DisplayIPv4NetworkInterfaces()
{
    NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
    IPGlobalProperties properties = IPGlobalProperties.GetIPGlobalProperties();
    Console.WriteLine("IPv4 interface information for {0}.{1}"
,
       properties.HostName, properties.DomainName);

    foreach (NetworkInterface adapter in nics)
    {
        // Only display informatin for interfaces that support IPv4.
        if (adapter.Supports(NetworkInterfaceComponent.IPv4) ==
 false)
        {
            continue;
        }
        Console.WriteLine();
        Console.WriteLine(adapter.Description);
        // Underline the description.
        Console.WriteLine(String.Empty.PadLeft(adapter.Description.Length,'='));
        IPInterfaceProperties adapterProperties = adapter.GetIPProperties();
        // Try to get the IPv4 interface properties.
        IPv4InterfaceProperties p = adapterProperties.GetIPv4Properties();
        
        if (p == null)
        {
            Console.WriteLine("No IPv4 information is available for
 this interface.");
            continue;
        }
        // Display the IPv4 specific data.
        Console.WriteLine("  Index ............................. : {0}",
 p.Index);
        Console.WriteLine("  MTU ............................... : {0}",
 p.Mtu);
        Console.WriteLine("  APIPA active....................... : {0}",
 
            p.IsAutomaticPrivateAddressingActive);
        Console.WriteLine("  APIPA enabled...................... : {0}",
 
            p.IsAutomaticPrivateAddressingEnabled);
        Console.WriteLine("  Forwarding enabled................. : {0}",
 
            p.IsForwardingEnabled);
         Console.WriteLine("  Uses WINS ......................... : {0}",
 
            p.UsesWins);
    }
}