System.Net.NetworkInformation Namespace ()

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Microsoft Visual Studio 2008/.NET Framework 3.5

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.NET Framework Class Library

System.Net.NetworkInformation Namespace

The System.Net.NetworkInformation namespace provides access to network traffic data, network address information, and notification of address changes for the local computer. The namespace also contains classes that implement the Ping utility. You can use Ping and related classes to check whether a computer is reachable across the network.

Classes

	Class	Description
	GatewayIPAddressInformation	Represents the IP address of the network gateway. This class cannot be instantiated.
	GatewayIPAddressInformationCollection	Stores a set of GatewayIPAddressInformation types.
	IcmpV4Statistics	Provides Internet Control Message Protocol for IPv4 (ICMPv4) statistical data for the local computer.
	IcmpV6Statistics	Provides Internet Control Message Protocol for Internet Protocol version 6 (ICMPv6) statistical data for the local computer.
	IPAddressCollection	Stores a set of IPAddress types.
	IPAddressInformation	Provides information about a network interface address.
	IPAddressInformationCollection	Stores a set of IPAddressInformation types.
	IPGlobalProperties	Provides information about the network connectivity of the local computer.
	IPGlobalStatistics	Provides Internet Protocol (IP) statistical data.
	IPInterfaceProperties	Provides information about network interfaces that support Internet Protocol version 4 (IPv4) or Internet Protocol version 6 (IPv6).
	IPv4InterfaceProperties	Provides information about network interfaces that support Internet Protocol version 4 (IPv4).
	IPv4InterfaceStatistics	Provides statistical data for a network interface on the local computer.
	IPv6InterfaceProperties	Provides information about network interfaces that support Internet Protocol version 6 (IPv6).
	MulticastIPAddressInformation	Provides information about a network interface's multicast address.
	MulticastIPAddressInformationCollection	Stores a set of MulticastIPAddressInformation types.
	NetworkAvailabilityEventArgs	Provides data for the NetworkAvailabilityChanged event.
	NetworkChange	Allows applications to receive notification when the Internet Protocol (IP) address of a network interface, also called a network card or adapter, changes.
	NetworkInformationException	The exception that is thrown when an error occurs while retrieving network information.
	NetworkInformationPermission	Controls access to network information and traffic statistics for the local computer. This class cannot be inherited.
	NetworkInformationPermissionAttribute	Allows security actions for NetworkInformationPermission to be applied to code using declarative security.
	NetworkInterface	Provides configuration and statistical information for a network interface.
	PhysicalAddress	Provides the Media Access Control (MAC) address for a network interface (adapter).
	Ping	Allows an application to determine whether a remote computer is accessible over the network.
	PingCompletedEventArgs	Provides data for the PingCompleted event.
	PingException	The exception that is thrown when a Send or SendAsync method calls a method that throws an exception.
	PingOptions	Used to control how Ping data packets are transmitted.
	PingReply	Provides information about the status and data resulting from a Send or SendAsync operation.
	TcpConnectionInformation	Provides information about the Transmission Control Protocol (TCP) connections on the local computer.
	TcpStatistics	Provides Transmission Control Protocol (TCP) statistical data.
	UdpStatistics	Provides User Datagram Protocol (UDP) statistical data.
	UnicastIPAddressInformation	Provides information about a network interface's unicast address.
	UnicastIPAddressInformationCollection	Stores a set of UnicastIPAddressInformation types.

Delegates

	Delegate	Description
	NetworkAddressChangedEventHandler	References one or more methods to be called when the address of a network interface changes.
	NetworkAvailabilityChangedEventHandler	References one or more methods to be called when the availability of the network changes.
	PingCompletedEventHandler	Represents the method that will handle the PingCompleted event of a Ping object.

Enumerations

	Enumeration	Description
	DuplicateAddressDetectionState	Specifies the current state of an IP address.
	IPStatus	Reports the status of sending an Internet Control Message Protocol (ICMP) echo message to a computer.
	NetBiosNodeType	Specifies the Network Basic Input/Output System (NetBIOS) node type.
	NetworkInformationAccess	Specifies permission to access information about network interfaces and traffic statistics.
	NetworkInterfaceComponent	Specifies the Internet Protocol versions that are supported by a network interface.
	NetworkInterfaceType	Specifies types of network interfaces.
	OperationalStatus	Specifies the operational state of a network interface.
	PrefixOrigin	Specifies how an IP address network prefix was located.
	SuffixOrigin	Specifies how an IP address host suffix was located.
	TcpState	Specifies the states of a Transmission Control Protocol (TCP) connection.

Reference

System.Net

System.Net.Configuration

Other Resources

Network Programming

Accessing the Internet Through a Proxy

Best Practices for System.Net Classes

Configuring Internet Applications

Internet Protocol Version 6

Network Tracing

NetworkInformation

Security in Network Programming