[lwip-devel] [bug #49631] Zero window and refused data problem

[Simon Goldschmidt]

Follow-up Comment #9, bug #49631 (project lwip):

Having thought about this, I think we can ignore tcplen and just send an empty
ACK if rcv_ann_wnd is zero.

This still does not fix the case where we havfe refused_data without a zero
window, but I guess normal retransmission should handle this good enough?

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