Date: Fri, 12 Feb 2016 17:03:40 +0300 From: Slawa Olhovchenkov <slw@zxy.spb.ru> To: Larry Rosenman <ler@lerctr.org> Cc: Kristof Provost <kp@freebsd.org>, Freebsd current <freebsd-current@freebsd.org> Subject: Re: IPV6 TCP6 Slow Connect Message-ID: <20160212140340.GN68298@zxy.spb.ru> In-Reply-To: <51fa0c661d2b850320f666c2c73f939e@thebighonker.lerctr.org> References: <8ca0068954b5cb25891c3324b2e8c863@thebighonker.lerctr.org> <20160211101449.GI19084@vega.codepro.be> <b152cabdaafbbfea7b17c7ebb4a0fb35@thebighonker.lerctr.org> <88197BB9-F03F-48BB-97DC-9BAAA2FA299F@FreeBSD.org> <125b65d56d310c0436ceb8047d1d0417@thebighonker.lerctr.org> <563b81912fc2de4670be51a832467ba9@thebighonker.lerctr.org> <20160212134543.GB37895@zxy.spb.ru> <51fa0c661d2b850320f666c2c73f939e@thebighonker.lerctr.org>
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On Fri, Feb 12, 2016 at 07:56:08AM -0600, Larry Rosenman wrote: > 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@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@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? Change MTU on members. ix0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=8407bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO> ether 90:e2:ba:27:ff:b8 nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> media: Ethernet autoselect (10Gbase-SR <full-duplex,rxpause,txpause>) status: active ix1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=8407bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO> ether 90:e2:ba:27:ff:b8 nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> media: Ethernet autoselect (10Gbase-SR <full-duplex,rxpause,txpause>) status: active lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384 options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6> inet6 ::1 prefixlen 128 inet6 fe80::1%lo0 prefixlen 64 scopeid 0x5 inet 127.0.0.1 netmask 0xff000000 nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=8407bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO> ether 90:e2:ba:27:ff:b8 inet 37.220.36.11 netmask 0xffffff00 broadcast 37.220.36.255 nd6 options=9<PERFORMNUD,IFDISABLED> media: Ethernet autoselect status: active laggproto lacp lagghash l2,l3,l4 laggport: ix0 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> laggport: ix1 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> > And, I still find it weird that Windows on the same lan segment, with a > 1500 MTU, > can connect. I am don't see in win10.pcap large packets. All packets under 1KB.
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