IPv4InterfaceProperties Class

 

Provides information about network interfaces that support Internet Protocol version 4 (IPv4).

Namespace:   System.Net.NetworkInformation
Assembly:  System (in System.dll)

System.Object
  System.Net.NetworkInformation.IPv4InterfaceProperties

Public MustInherit Class IPv4InterfaceProperties

NameDescription
System_CAPS_protmethodIPv4InterfaceProperties()

Initializes a new instance of the IPv4InterfaceProperties class.

NameDescription
System_CAPS_pubpropertyIndex

Gets the index of the network interface associated with the Internet Protocol version 4 (IPv4) address.

System_CAPS_pubpropertyIsAutomaticPrivateAddressingActive

Gets a Boolean value that indicates whether this interface has an automatic private IP addressing (APIPA) address.

System_CAPS_pubpropertyIsAutomaticPrivateAddressingEnabled

Gets a Boolean value that indicates whether this interface has automatic private IP addressing (APIPA) enabled.

System_CAPS_pubpropertyIsDhcpEnabled

Gets a Boolean value that indicates whether the interface is configured to use a Dynamic Host Configuration Protocol (DHCP) server to obtain an IP address.

System_CAPS_pubpropertyIsForwardingEnabled

Gets a Boolean value that indicates whether this interface can forward (route) packets.

System_CAPS_pubpropertyMtu

Gets the maximum transmission unit (MTU) for this network interface.

System_CAPS_pubpropertyUsesWins

Gets a Boolean value that indicates whether an interface uses Windows Internet Name Service (WINS).

NameDescription
System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

This class provides access to configuration and address information for network interfaces that support IPv4. You do not create instances of this class; they are returned by the GetIPv4Properties method.

For IPV6 properties, see GetIPv6Properties.

The following code example gets an GetIPv4Properties object and displays its data.

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
Available since 2.0

Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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