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IPAddress.AddressFamily Property

Gets the address family of the IP address.

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

public AddressFamily AddressFamily { get; }
/** @property */
public AddressFamily get_AddressFamily ()

public function get AddressFamily () : AddressFamily

Property Value

Returns InterNetwork for IPv4 or InterNetworkV6 for IPv6.

Refer to the example in the IPAddress class topic.


// Display the type of address family supported by the server. If the
// server is IPv6-enabled this value is: InternNetworkV6. If the server
// is also IPv4-enabled there will be an additional value of InterNetwork.
Console.WriteLine("AddressFamily: " + curAdd.AddressFamily.ToString());

// Display the ScopeId property in case of IPV6 addresses.
if(curAdd.AddressFamily.ToString() == ProtocolFamily.InterNetworkV6.ToString())
  Console.WriteLine("Scope Id: " + curAdd.ScopeId.ToString());


// Display the type of address family supported by the server. 
// If the server is IPv6-enabled this value is:InternNetworkV6.
// If the server is also IPv4-enabled there will be an 
// additional value of InterNetwork.
Console.WriteLine(("AddressFamily: " 
    + curAdd.get_AddressFamily().ToString()));

// Display the ScopeId property in case of IPV6 addresses.
if (curAdd.get_AddressFamily().ToString().equals(
        ProtocolFamily.InterNetworkV6.ToString())) {
    Console.WriteLine(("Scope Id: " 
        +(new Long(curAdd.get_ScopeId())).ToString()));
}

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0

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