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Date:      Thu, 23 Jul 2015 15:43:58 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-net@FreeBSD.org
Subject:   [Bug 201590] Zerowindow packets escape stateful in-kernel NAT
Message-ID:  <bug-201590-2472-sx5VXPuT4J@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-201590-2472@https.bugs.freebsd.org/bugzilla/>
References:  <bug-201590-2472@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=201590

--- Comment #8 from g_amanakis@yahoo.com ---
Perhaps the culprit is the subfunction ipfw_send_pkt() in ipfw_dyn_send_ka().
Here the following happens:
    m->m_flags |= M_SKIP_FIREWALL;
I will try commenting out the line and see if this resolves it.

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