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Date:      Mon, 15 Feb 2016 15:52:20 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 207215] ipv6 pf rfc1323 seem to have an issue causing slow/no connect with tcp6
Message-ID:  <bug-207215-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D207215

            Bug ID: 207215
           Summary: ipv6 pf rfc1323 seem to have an issue causing slow/no
                    connect with tcp6
           Product: Base System
           Version: 11.0-CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: ler@lerctr.org

When net.inet.tcp.rfc1323 is set to 1, there seems to be an issue with pf
scrubbing of the timestamp or window size options, causing PMTU or other
issues.=20

I noticed slow / no connect via tcp6 from a FreeBSD 11-Current system throu=
gh a
pfSense  2.2.6-RELEASE (FreeBSD 10.1-RELEASE-p25) firewall.=20


A packet capture:
http://www.lerctr.org/~ler/FreeBSD/ssh.fw.wan.pcap from the WAN side of the
firewall.

Kristof Provost (kp@) is looking at it, but suggested filing this bug.

--=20
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