This documentation is archived and is not being maintained.

UnicastIPAddressInformation.AddressValidLifetime Property

Gets the number of seconds remaining during which this address is valid.

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

public abstract long AddressValidLifetime { get; }

Property Value

Type: System.Int64
An Int64 value that specifies the number of seconds left for this address to remain assigned.


This property is not valid on computers running operating systems earlier than Windows XP.

Use the value returned by this property to determine whether this address can be used by your application. Whenever possible, applications should use a preferred address. Use DuplicateAddressDetectionState to determine the preferred address.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0