IPV6 TCP6 Slow Connect

[Larry Rosenman]

On 2016-02-12 08:02, Kristof Provost wrote:
>> On 12 Feb 2016, at 10:18, Larry Rosenman <ler at lerctr.org> wrote:
>> 
>> On 2016-02-11 20:50, Larry Rosenman wrote:
>>> On 2016-02-11 14:40, Larry Rosenman wrote:
>>>> On 2016-02-11 14:25, Kristof Provost wrote:
>>>> On 11 Feb 2016, at 21:23, Larry Rosenman <ler at lerctr.org> wrote:
>>>> From which system(s) perspective do you want the packet captures?
>>>> (Firewall, FreeBSD, Windows)? I wouldn't expect it to make much of a 
>>>> difference in this case.
>>>> Let's start with whatever is easiest.
>>>> Regards,
>>>> Kristof
>>> I'll try and get these tonight when I am home, after a meetup.
>>> (will be late US/CST).
>>> --
>>> Larry Rosenman                     http://www.lerctr.org/~ler
>>> Phone: +1 214-642-9640                 E-Mail: ler at lerctr.org
>>> US Mail: 7011 W Parmer Ln, Apt 1115, Austin, TX 78729-6961
>>> at http://www.lerctr.org/~ler/FreeBSD/win10.pcap
>> the 403 issue is fixed (forgot to chmod the file)
>>> http://www.lerctr.org/~ler/FreeBSD/fbsd11.pcap
>> URL corrected.
>> 
> At first glance the only difference is that FreeBSD includes
> timestamps (and has a larger window scaling factor).
> It might be worth turning that off to see if it makes a difference.
> 
> sysctl net.inet.tcp.rfc1323=1 should do the trick.
> 
> Regards,
> Kristof


sysctl net.inet.tcp.rfc1323=0
makes it work


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