AddressFamily Enumeration
Specifies the addressing scheme that an instance of the Socket class can use.
Assembly: System (in System.dll)
| Member name | Description | |
|---|---|---|
| AppleTalk | AppleTalk address. | |
| Atm | Native ATM services address. | |
| Banyan | Banyan address. | |
| Ccitt | Addresses for CCITT protocols, such as X.25. | |
| Chaos | Address for MIT CHAOS protocols. | |
| Cluster | Address for Microsoft cluster products. | |
| DataKit | Address for Datakit protocols. | |
| DataLink | Direct data-link interface address. | |
| DecNet | DECnet address. | |
| Ecma | European Computer Manufacturers Association (ECMA) address. | |
| FireFox | FireFox address. | |
| HyperChannel | NSC Hyperchannel address. | |
| Ieee12844 | IEEE 1284.4 workgroup address. | |
| ImpLink | ARPANET IMP address. | |
| InterNetwork | Address for IP version 4. | |
| InterNetworkV6 | Address for IP version 6. | |
| Ipx | IPX or SPX address. | |
| Irda | IrDA address. | |
| Iso | Address for ISO protocols. | |
| Lat | LAT address. | |
| Max | MAX address. | |
| NetBios | NetBios address. | |
| NetworkDesigners | Address for Network Designers OSI gateway-enabled protocols. | |
| NS | Address for Xerox NS protocols. | |
| Osi | Address for OSI protocols. | |
| Pup | Address for PUP protocols. | |
| Sna | IBM SNA address. | |
| Unix | Unix local to host address. | |
| Unknown | Unknown address family. | |
| Unspecified | Unspecified address family. | |
| VoiceView | VoiceView address. |
The following example creates a Socket using the InterNetworkAddressFamily.
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")); } }
Available since 10
.NET Framework
Available since 1.1
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.1