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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 Value

Type: System.Net.Sockets.AddressFamily
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(S"AddressFamily: {0}", __box(curAdd->AddressFamily));

// Display the ScopeId property in case of IPV6 addresses.
if(__box(curAdd->AddressFamily)->ToString() == __box(ProtocolFamily::InterNetworkV6)->ToString())
    Console::WriteLine(S"Scope Id: {0}", __box(curAdd->ScopeId));

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, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

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, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0

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