namespace System.Net.Sockets { public enum SocketOptionName { AcceptConnection = 2, AddMembership = 12, AddSourceMembership = 15, BlockSource = 17, Broadcast = 32, BsdUrgent = 2, ChecksumCoverage = 20, Debug = 1, DontFragment = 14, DontLinger = -129, DontRoute = 16, DropMembership = 13, DropSourceMembership = 16, Error = 4103, ExclusiveAddressUse = -5, Expedited = 2, HeaderIncluded = 2, HopLimit = 21, IPOptions = 1, IPProtectionLevel = 23, IpTimeToLive = 4, IPv6Only = 27, KeepAlive = 8, Linger = 128, MaxConnections = int.MaxValue, MulticastInterface = 9, MulticastLoopback = 11, MulticastTimeToLive = 10, NoChecksum = 1, NoDelay = 1, OutOfBandInline = 256, PacketInformation = 19, ReceiveBuffer = 4098, ReceiveLowWater = 4100, ReceiveTimeout = 4102, ReuseAddress = 4, ReuseUnicastPort = 12295, SendBuffer = 4097, SendLowWater = 4099, SendTimeout = 4101, Type = 4104, TypeOfService = 3, UnblockSource = 18, UpdateAcceptContext = 28683, UpdateConnectContext = 28688, UseLoopback = 64 } }