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NetworkInterfaceComponent Enumeration

Specifies the Internet Protocol versions that are supported by a network interface.

Namespace:  System.Net.NetworkInformation
Assembly:  System (in System.dll)
'Declaration
Public Enumeration NetworkInterfaceComponent
Member nameDescription
IPv4Internet Protocol version 4.
IPv6Internet Protocol version 6.

The values in this enumeration are used by the Supports method to specify the Internet Protocol version supported by a network interface.

The following code example checks whether a network interface supports IPv4.

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

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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