The adapter does not need and must not implement TCP flow control. Prototype IP header will not have MF bit set and offset will be zero. Prototype TCP header will not have the URG, RST, and SYN flags set and the urgent pointer will be zero. If FIN bit is set, the TCP header in the last segment sent will have the FIN bit set. If PUSH bit is set, the TCP header in the last segment sent will have the bit set.
Network adapter sends the packets in the order they are sent.
Specifically, it will not increment the time stamp in a Time Stamp option. TCP Segmentation Offload is in Windows 2000, but it is disabled by default in the registry. Microsoft recommends that hardware vendors use Windows 2000 as a development platform for TCP Segmentation Offload adapters, enabling it in registry. At this time, Microsoft does not recommend using TCP Segmentation Offload in end-user environments except for Beta testing of hardware and drivers. Windows 2000 IPSec enables network administrators to secure traffic on corporate networks, transparent to existing applications.