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Re: One Way Internet
I wasn't aware that Windowing and ACK frequency were related on the standard TCP/IP stacks that ship with Windows et al. You can't ACK an entire receive window without extensive static tuning on client and server side, isn't the RWIN just the amount of data that can be on the wire before the server must see ACKs? RWIN is related to congestion/flow control, not ACK reduction, at least not on a standard TCP stack.
By default a Windows XP and Vista machine will ACK every second packet, as per the setting stored in the Windows registry in \\HKLM\system\CurrentControlSet\Services\Tcpip\Par ameters\Interfaces\
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