[Bug 1412943] Re: security.ubuntu.com (2001:67c:1562::XXX) not reachable via HE

[Haw Loeung]

>From HE Berlin, Frankfurt, and Prague:

| core1.ber1.he.net> traceroute 2001:67c:1562::15
| Hop	Packet 1	Packet 2	Packet 3	Hostname
| 1	10.403 ms	0.176 ms	0.25 ms	ge2-20.core1.ber1.he.net (2001:470:0:220::1)
| 2	14.487 ms	54.885 ms	16.052 ms	10ge11-5.core1.ams1.he.net (2001:470:0:211::1)
| 3	14.958 ms	14.545 ms	14.491 ms	adm-sara-s1-link.telia.net (2001:2000:3080:1b9::1)
| 4	100.264 ms	98.142 ms	96.88 ms	bost-b1-v6.telia.net (2001:2000:3018:84::1)
| 5	100.025 ms	99.481 ms	99.407 ms	internap-ic-304640-bost-b1.c.telia.net (2001:2000:3080:93b::2)
| 6	99.018 ms	96.084 ms	96.45 ms	mpr1-bbnet2.bsn004.pnap.net (2600:c0d:0:102:0:4:2:1)
| 7	97.877 ms	98.276 ms	97.876 ms	2600:c0d:4002:3::2
| 8	97.982 ms	100.547 ms	98.163 ms	likho.canonical.com (2001:67c:1562::15)

| core1.fra1.he.net> traceroute ipv6 2001:67c:1562::15 numeric
| Hop	Packet 1	Packet 2	Packet 3	Hostname
| 1	25 ms	<1 ms	<1 ms	as1299.gige-g2-9.core1.fra1.he.net (2001:470:0:168::2)
| 2	98 ms	99 ms	120 ms	bost-b1-v6.telia.net (2001:2000:3018:84::1)
| 3	111 ms	99 ms	99 ms	internap-ic-304640-bost-b1.c.telia.net (2001:2000:3080:93b::2)
| 4	98 ms	98 ms	98 ms	mpr1-bbnet1.bsn004.pnap.net (2600:c0d:0:101:0:4:2:1)
| 5	99 ms	98 ms	99 ms	2600:c0d:4002:3::2
| 6	107 ms	151 ms	120 ms	likho.canonical.com (2001:67c:1562::15)

| core1.prg1.he.net> traceroute ipv6 2001:67c:1562::15 numeric
| Hop	Packet 1	Packet 2	Packet 3	Hostname
| 1	8 ms	17 ms	17 ms	100ge8-1.core1.fra1.he.net (2001:470:0:213::1)
| 2	8 ms	17 ms	7 ms	as1299.gige-g2-9.core1.fra1.he.net (2001:470:0:168::2)
| 3	100 ms	100 ms	100 ms	bost-b1-v6.telia.net (2001:2000:3018:84::1)
| 4	103 ms	111 ms	103 ms	internap-ic-304640-bost-b1.c.telia.net (2001:2000:3080:93b::2)
| 5	102 ms	102 ms	102 ms	mpr1-bbnet1.bsn004.pnap.net (2600:c0d:0:101:0:4:2:1)
| 6	103 ms	113 ms	102 ms	2600:c0d:4002:3::2
| 7	103 ms	103 ms	103 ms	likho.canonical.com (2001:67c:1562::15)

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https://bugs.launchpad.net/bugs/1412943

Title:
  security.ubuntu.com (2001:67c:1562::XXX) not reachable via HE

Status in update-manager package in Ubuntu:
  Confirmed

Bug description:
  I know this is not a bug in the software, but in the network
  connection of some of the security.ubuntu.com servers via IPv6. Which
  leads to the problem that no software update is possible without
  changes in the /etc/gai.conf to prefer IPv4.  It resolves to following
  IP addresses:

  $ host security.ubuntu.com
  security.ubuntu.com has address 91.189.91.13
  security.ubuntu.com has address 91.189.91.14
  security.ubuntu.com has address 91.189.91.15
  security.ubuntu.com has address 91.189.91.23
  security.ubuntu.com has address 91.189.91.24
  security.ubuntu.com has address 91.189.92.200
  security.ubuntu.com has address 91.189.92.201
  security.ubuntu.com has address 91.189.88.149
  security.ubuntu.com has IPv6 address 2001:67c:1562::15
  security.ubuntu.com has IPv6 address 2001:67c:1562::17
  security.ubuntu.com has IPv6 address 2001:67c:1360:8c01::19
  security.ubuntu.com has IPv6 address 2001:67c:1562::13
  security.ubuntu.com has IPv6 address 2001:67c:1562::16
  security.ubuntu.com has IPv6 address 2001:67c:1360:8c01::18
  security.ubuntu.com has IPv6 address 2001:67c:1562::14

  All IPv6 addresses that start with 2001:67c:1562::  are not reachable
  from some providers. e.g. Hurricane Electric's, but the error seems to
  be on the server site. The 2001:67c:1360:8c01 ones work.

  An MTR from inside HE's network shows it gets into XO's network, then
  dies where it hands off to Internap who gets the routes from
  Occaid/TowardEX, or it used to. Now going via Telia, it still dies
  inside Internap's network. Not an HE issue - please inform your
  networks guys. Thx.

  
    1.|-- f0-6.switch14.fmt2.he.net  0.0%     5   12.0   5.5   0.6  13.5   6.7
    2.|-- 10ge8-4.core1.fmt2.he.net  0.0%     5    0.6   0.6   0.5   0.7   0.0
    3.|-- 10ge1-1.core1.sjc2.he.net  0.0%     5   10.3   5.1   1.0  12.0   5.6
    4.|-- sjo-eqx-s1-link.telia.net  0.0%     5    1.0   1.1   1.0   1.1   0.0
    5.|-- bost-b1-v6.telia.net       0.0%     5   77.4  77.4  77.3  77.4   0.0
    6.|-- internap-ic-304640-bost-b  0.0%     5   78.3  78.3  78.2  78.4   0.0
    7.|-- ???                       100.0     5    0.0   0.0   0.0   0.0   0.0

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