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Date:      Fri, 30 May 2014 10:58:14 -0700
From:      hiren panchasara <>
To:        Eygene Ryabinkin <>
Cc:        "" <>
Subject:   Re: kern/190102: [tcp] net.inet.tcp.drop_synfin=1 no longer works on FreeBSD 10+ [regression]
Message-ID:  <>
In-Reply-To: <+Uw/Ss5bElti5gir++ydy1GLu7M@dHhGgwofm7uNfL6/X5+bGIkDUYs>
References:  <> <+Uw/Ss5bElti5gir++ydy1GLu7M@dHhGgwofm7uNfL6/X5+bGIkDUYs>

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- bugs (as this is not related to it)

On Wed, May 28, 2014 at 10:46 PM, Eygene Ryabinkin <> wrote:

> clearing FIN bit for SYN packets was
> the standard behaviour of pf since approximately at least 10 years,

I am curious, what's the rationale for this behavior? Why does PF
clear the FIN bit for such a packet being a firewall?


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