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Date:      Thu, 16 Mar 2017 08:47:41 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-net@FreeBSD.org
Subject:   [Bug 217637] One TCP connection accepted TWO times
Message-ID:  <bug-217637-2472-qAN2EDsXIl@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-217637-2472@https.bugs.freebsd.org/bugzilla/>
References:  <bug-217637-2472@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D217637

--- Comment #13 from Alexandre martins <alexandre.martins@stormshield.eu> -=
--
I want to remind you that the original client is a smartphone. The first ti=
me
that I saw the problem, I made a tcpdump on the wireless box, not on the
smartphone itself.

The server response may have been delayed into the wifi process (poor signa=
l ?)
and takes time to reach the phone (but has already been captured into the
pcap). The phone may have done a re-transmit because it thinks that the http
request was lost.

I just managed that to reproduce it through the scapy script on the ubuntu =
with
a iptables configuration that drops the TCP reset.

--=20
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