Re: schein.debian.org

[Henrique de Moraes Holschuh <hmh@debian.org>]

On Wed, 01 Jun 2011, Gerald Turner wrote:
> Henrique de Moraes Holschuh <hmh@debian.org> writes:
>  $ tracepath6 schein.debian.org
>   1?: [LOCALHOST]                        0.031ms pmtu 1480
>   1:  shub-niggurath.unzane.com                             0.162ms
>   1:  shub-niggurath.unzane.com                             0.360ms
>   2:  gturner-1.tunnel.tserv14.sea1.ipv6.he.net             6.576ms
>   3:  gige-g2-6.core1.sea1.he.net                           5.654ms
>   4:  10gigabitethernet9-1.core1.sjc2.he.net               26.522ms
>   5:  10gigabitethernet3-2.core1.pao1.he.net               34.657ms
>   6:  he.pao1.isc.org                                      29.855ms
>   7:  int-0-0-0.r1.sjc3.isc.org                            31.418ms asymm 5
>   8:  schein.debian.org                                    27.519ms reached
>       Resume: pmtu 1480 hops 8 back 59

8 hops to get to shein, and *59* hops to get back?!

That path is hopelessly broken.  In fact, this is so weird I'd guess
something is screwing up the TTL fields in the way.

Set the TTL to packets directed to shein to 250, and check what happens.  I
think you can do that adding a explicit route (via your default gateway) and
forcing the TTL, using "ip route add".

At this point, we really should get someone that can login in shein to do a
reverse tracepath to your IP...

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh