public void Listen(IPEndPoint localEP, int backlog) { in_addr inAddress = new in_addr(); inAddress.s_b1 = localEP.Address.GetAddressBytes()[0]; inAddress.s_b2 = localEP.Address.GetAddressBytes()[1]; inAddress.s_b3 = localEP.Address.GetAddressBytes()[2]; inAddress.s_b4 = localEP.Address.GetAddressBytes()[3]; sockaddr_in sa = new sockaddr_in(); sa.sin_family = ADDRESS_FAMILIES.AF_INET; sa.sin_port = WinSock.htons((ushort)localEP.Port); //Imports.ThrowLastWSAError(); sa.sin_addr = inAddress; unsafe { if (WinSock.bind(_listenerSocket, ref sa, sizeof(sockaddr_in)) == WinSock.SOCKET_ERROR) { WinSock.ThrowLastWSAError(); } } if (WinSock.listen(_listenerSocket, backlog) == WinSock.SOCKET_ERROR) { WinSock.ThrowLastWSAError(); } foreach (var s in allSockets) { BeginAccept(s); } }