IPV6 TCP6 Slow Connect

[Larry Rosenman]

On 2016-02-12 07:45, Slawa Olhovchenkov wrote:
> On Thu, Feb 11, 2016 at 08:50:59PM -0600, 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
>> 
>> http://www.lerctr.org/~ler/.FreeBSD/fbsd11.pcap
>> 
>> Please let me know what else you need.
>> 
>> I **CAN** supply accesss to a @FreeBSD.org developer to:
>> 
>> 1) the FreeBSD 11 host
>> 
>> 2) the FreeBSD(pfSense) Firewall
>> 
>> 3) the IPv6 host (FreeBSD 10) that I ssh'd to.
>> 
>> 4) the FireWall in front of the FreeBSD 10 box (also pfSense)
> 
> First try: MTU issuse (1480, not 1500)?
how do I change the MTU on a LAGG interface?

borg.lerctr.org /usr/src # ifconfig lagg0 mtu 1300
ifconfig: ioctl SIOCSIFMTU (set mtu): Invalid argument
borg.lerctr.org /usr/src #

how can I change it on a lagg interface?

And, I still find it weird that Windows on the same lan segment, with a 
1500 MTU,
can connect.


-- 
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