System::Net::Sockets::SocketOptionName enum

SocketOptionName enum

Defines socket option names for the Socket class.

enum class SocketOptionName

Values

Name	Value	Description
Debug	1	Record debugging information.
AcceptConnection	2	Indicates if a socket is listening for an incoming connection.
ReuseAddress	4	Indicates if a socket can be bound to the address that is already in use.
KeepAlive	8	Enables the ‘Keep-Alive’ packets for a socket connection.
DontRoute	16	Indicates if a packet is sent directly to the interface addresses.
Broadcast	32	Indicates if a socket can send the broadcast messages.
UseLoopback	64	Bypass hardware when possible.
Linger	128	The system will block the process on the close attempt until it is able to transmit the data.
OutOfBandInline	256	Receives out-of-band data in the normal data stream.
DontLinger	n/a	Indicates if a socket will be closed without lingering.
ExclusiveAddressUse	n/a	A socket will use the bound address exclusively.
SendBuffer	4097	Specifies the send buffer size.
ReceiveBuffer	4098	Specifies the receive buffer size.
SendLowWater	4099	Specifies the minimum amount of data for the send operations.
ReceiveLowWater	4100	Specifies the minimum amount of data for the receive operations.
SendTimeout	4101	Specifies the timeout for the synchronous send operations.
ReceiveTimeout	4102	Specifies the timeout for the synchronous receive operations.
Error	4103	Returns the error status and clear.
Type	4104	Returns a socket type.
ReuseUnicastPort	12295	Indicates if the system should defer the ephemeral port allocation for the outbound connections.
MaxConnections	2147483647	This option is not supported. It was used to specify the maximum queue length for listening.
IPOptions	1	Specifies the IP option that must be inserted to outgoing datagrams.
HeaderIncluded	2	The header is included to outgoing datagrams.
TypeOfService	3	Change the IP header type of the service field.
IpTimeToLive	4	The IP time to live.
MulticastInterface	9	Set the interface for the outgoing multicast packets.
MulticastTimeToLive	10	The IP multicast time to live.
MulticastLoopback	11	The IP Multicast loopback.
AddMembership	12	Add an IP group membership.
DropMembership	13	Drop an IP group membership.
DontFragment	14	Don’t fragment the IP datagrams.
AddSourceMembership	15	Join the IP group/source.
DropSourceMembership	16	Drop the IP group/source.
BlockSource	17	Block the IP group/source.
UnblockSource	18	Unblock the IP group/source.
PacketInformation	19	Receive packet information for IPv4.
HopLimit	21	Delivers an integer containing the HOP count of the packet.
IPProtectionLevel	23	Enables restriction of an IPv6 socket to the specified scope.
IPv6Only	27	The socket is restricted to send and receive IPv6 packets only.
NoDelay	1	Disables the Nagle algorithm for coalescing the send packets.
BsdUrgent	2	Use the urgent data as defined in RFC-1222.
Expedited	2	Use the expedited data as defined in RFC-1222.
NoChecksum	1	Send the UDP datagrams with a checksum set to zero.
ChecksumCoverage	20	Set or get the UDP checksum coverage.
UpdateAcceptContext	28683	Updates a client socket with the same properties of a listening socket.
UpdateConnectContext	28688	Updates a client socket with the same properties of a listening socket.

See Also

• Namespace System::Net::Sockets
• Library Aspose.Font for C++