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Date: Wed, 05 Nov 2014 19:11:55 +0100
From: Ilya Bakulin <ilya@bakulin.de>
To: Mark Felder <feld@freebsd.org>
Subject: Re: Checksumming outgoing packets in PF vs in
 =?UTF-8?Q?ip=5B=36=5D=5Foutput?=
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On 2014-11-05 19:00, Mark Felder wrote:
> On Wed, Nov 5, 2014, at 08:28, Ilya Bakulin wrote:
>> Hi all,
>> 
>> I have been hit by this 2-year-old bug with PF and 'scrub reassemble
>> tcp' on IPv6 connections:
>> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=172648
>> 
> 
> Wow, this is great. I've known about this problem since I discovered it
> upon updating to the 9.0-RELEASE and found my IPv6 connections were 
> slow
> as molasses. Thank you for implementing a fix. I hope to be able to 
> test
> it soon.

I hope this helps! btw I've tested this on 11-CURRENT, but I think the 
code in 9 and 10 should not be
different wrt checksum handling.

> 
> Now if we could only stamp out the bug with ipv6 fragment and pf I'd be
> a happy, happy daemon. :-)

This is somewhat more complex problem, I'll take a look as the time 
allows.