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IPAddress.Loopback Field

Provides the IP loopback address. This field is read-only.

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

Public Shared ReadOnly Loopback As IPAddress

The Loopback field is equivalent to in dotted-quad notation.

The following example prints the Loopback address to the console.

Public Sub PrintLoopbackAddress()
    ' Gets the IP loopback address and converts it to a string.
    Dim IpAddressString As [String] = IPAddress.Loopback.ToString()
    Console.WriteLine(("Loopback IP address : " + IpAddressString))
End Sub 'PrintLoopbackAddress

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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