FreeBSD TCP ignores zero window size

[Andre Oppermann]

On 04.04.2012 17:03, perryh at pluto.rain.com wrote:
> Andre Oppermann<andre at freebsd.org>  wrote:
>
>> The other side is retransmitting data we have already received
>> and acknowledged ... That behavior is totally non-compliant.
>
> Any chance our ack of that data got dropped/lost enroute, and the
> other side is resending after timing out?

The correct ACK is retransmitted about a dozen times for
re-synchronization.  Unlikely that all of them get lost.
On top of it the RST to terminate the session has the
correct SEQ.  Something's munging the SEQ/ACK space along
the way here.

-- 
Andre