On 2016-02-12 08:31, Kristof Provost wrote:
On 12 Feb 2016, at 15:29, Larry Rosenman <l...@lerctr.org> wrote:

On 2016-02-12 08:13, Larry Rosenman wrote:

sysctl net.inet.tcp.rfc1323=0
makes it work
Shouldn't the stack do the right thing here? For the record, the other side
is also FreeBSD (10.2-STABLE).

Yes, but it’s possible that there’s a problem with the pf scrubbing of
the window scaling or timestamp options.

I have a vague recollection of having looked at that in the past.
Bug 172648 also claims there is/was an issue with checksums in that
case, but I’ve never been able to reproduce it.

Ok. Since I can reproduce this at will, and the 2 firewalls are pfSense, how can I help?

Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 214-642-9640                 E-Mail: l...@lerctr.org
US Mail: 7011 W Parmer Ln, Apt 1115, Austin, TX 78729-6961
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