Namespace: System.Net.Sockets

The System.Net.Sockets namespace provides a managed implementation of the Windows Sockets (Winsock) interface for developers who need to tightly control access to the network.

The TCPClient, TCPListener, and UDPClient classes encapsulate the details of creating TCP and UDP connections to the Internet.

Members of System.Net.Sockets Namespace

Classes

Class	Description
class LingerOption	Contains information about a socket's linger time, the amount of time it will remain after closing if data remains to be sent.
class MulticastOption	Contains IP address values for IP multicast packets.
class NetworkStream	Provides the underlying stream of data for network access.
class Socket	Implements the Berkeley sockets interface.
class SocketException	The exception that is thrown when a socket error occurs.
class TcpClient	Provides client connections for TCP network services.
class TcpListener	Listens for connections from TCP network clients.
class UdpClient	Provides User Datagram Protocol (UDP) network services.

Enumerations

Enumeration	Description
enumeration AddressFamily	Specifies the addressing scheme that an instance of the Socket class can use.
enumeration ProtocolFamily	Specifies the type of protocol that an instance of the Socket class can use.
enumeration ProtocolType	Specifies the protocols that the Socket class supports.
enumeration SelectMode	Defines the polling modes for the Socket.Poll method.
enumeration SocketFlags	Provides constant values for socket messages.
enumeration SocketOptionLevel	Defines socket option levels for the Socket.SetSocketOption and Socket.GetSocketOption methods.
enumeration SocketOptionName	Defines socket option names for the Socket class.
enumeration SocketShutdown	Defines constants used by the Socket.Shutdown method.
enumeration SocketType	Specifies the type of socket an instance of the Socket class represents.