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AddressFamily Enumeration
Visual Studio 2010
Specifies the addressing scheme that an instance of the Socket class can use.
Assembly: System (in System.dll)
| Member name | Description | |
|---|---|---|
| Unknown | Unknown address family. | |
| Unspecified | Unspecified address family. | |
| Unix | Unix local to host address. | |
| InterNetwork | Address for IP version 4. | |
| ImpLink | ARPANET IMP address. | |
| Pup | Address for PUP protocols. | |
| Chaos | Address for MIT CHAOS protocols. | |
| NS | Address for Xerox NS protocols. | |
| Ipx | IPX or SPX address. | |
| Iso | Address for ISO protocols. | |
| Osi | Address for OSI protocols. | |
| Ecma | European Computer Manufacturers Association (ECMA) address. | |
| DataKit | Address for Datakit protocols. | |
| Ccitt | Addresses for CCITT protocols, such as X.25. | |
| Sna | IBM SNA address. | |
| DecNet | DECnet address. | |
| DataLink | Direct data-link interface address. | |
| Lat | LAT address. | |
| HyperChannel | NSC Hyperchannel address. | |
| AppleTalk | AppleTalk address. | |
| NetBios | NetBios address. | |
| VoiceView | VoiceView address. | |
| FireFox | FireFox address. | |
| Banyan | Banyan address. | |
| Atm | Native ATM services address. | |
| InterNetworkV6 | Address for IP version 6. | |
| Cluster | Address for Microsoft cluster products. | |
| Ieee12844 | IEEE 1284.4 workgroup address. | |
| Irda | IrDA address. | |
| NetworkDesigners | Address for Network Designers OSI gateway-enabled protocols. | |
| Max | MAX address. |
The following example creates a Socket using the InterNetwork AddressFamily.
using System; using System.Text; using System.IO; using System.Net; using System.Net.Sockets; public class Sample { public static string DoSocketGet(string server) { //Set up variables and String to write to the server. Encoding ASCII = Encoding.ASCII; string Get = "GET / HTTP/1.1\r\nHost: " + server + "\r\nConnection: Close\r\n\r\n"; Byte[] ByteGet = ASCII.GetBytes(Get); Byte[] RecvBytes = new Byte[256]; String strRetPage = null; // IPAddress and IPEndPoint represent the endpoint that will // receive the request. // Get first IPAddress in list return by DNS. try { // Define those variables to be evaluated in the next for loop and // then used to connect to the server. These variables are defined // outside the for loop to make them accessible there after. Socket s = null; IPEndPoint hostEndPoint; IPAddress hostAddress = null; int conPort = 80; // Get DNS host information. IPHostEntry hostInfo = Dns.GetHostEntry(server); // Get the DNS IP addresses associated with the host. IPAddress[] IPaddresses = hostInfo.AddressList; // Evaluate the socket and receiving host IPAddress and IPEndPoint. for (int index=0; index<IPaddresses.Length; index++) { hostAddress = IPaddresses[index]; hostEndPoint = new IPEndPoint(hostAddress, conPort); // Creates the Socket to send data over a TCP connection. s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp ); // Connect to the host using its IPEndPoint. s.Connect(hostEndPoint); if (!s.Connected) { // Connection failed, try next IPaddress. strRetPage = "Unable to connect to host"; s = null; continue; } // Sent the GET request to the host. s.Send(ByteGet, ByteGet.Length, 0); } // End of the for loop. // Receive the host home page content and loop until all the data is received. Int32 bytes = s.Receive(RecvBytes, RecvBytes.Length, 0); strRetPage = "Default HTML page on " + server + ":\r\n"; strRetPage = strRetPage + ASCII.GetString(RecvBytes, 0, bytes); while (bytes > 0) { bytes = s.Receive(RecvBytes, RecvBytes.Length, 0); strRetPage = strRetPage + ASCII.GetString(RecvBytes, 0, bytes); } } // End of the try block. catch(SocketException e) { Console.WriteLine("SocketException caught!!!"); Console.WriteLine("Source : " + e.Source); Console.WriteLine("Message : " + e.Message); } catch(ArgumentNullException e) { Console.WriteLine("ArgumentNullException caught!!!"); Console.WriteLine("Source : " + e.Source); Console.WriteLine("Message : " + e.Message); } catch(NullReferenceException e) { Console.WriteLine("NullReferenceException caught!!!"); Console.WriteLine("Source : " + e.Source); Console.WriteLine("Message : " + e.Message); } catch(Exception e) { Console.WriteLine("Exception caught!!!"); Console.WriteLine("Source : " + e.Source); Console.WriteLine("Message : " + e.Message); } return strRetPage; } public static void Main() { Console.WriteLine(DoSocketGet("localhost")); } }
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.
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