[160979] in North American Network Operators' Group
IPv6 Routes in L3
daemon@ATHENA.MIT.EDU (Darton Williams)
Wed Feb 20 22:39:16 2013
Date: Wed, 20 Feb 2013 22:39:05 -0500
From: Darton Williams <dartonw@gmail.com>
To: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Anyone have visibility on Level 3 IPv6 routing? I'm unable to reach
http://fedoraproject.org by their primary and ended up having to spoof a
secondary in local DNS. Note that this is on HughesNet; multiple levels of
support have been clueless or stumped.
For the curious:
[darton@dkw-vostro ~]$ dig -6 @google-public-dns-a.google.com -t aaaa
www.fedoraproject.org
; <<>> DiG 9.9.2-P1-RedHat-9.9.2-3.P1.fc17 <<>> -6 @
google-public-dns-a.google.com -t aaaa www.fedoraproject.org
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21521
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;www.fedoraproject.org. IN AAAA
;; ANSWER SECTION:
www.fedoraproject.org. 1200 IN CNAME wildcard.fedoraproject.org.
wildcard.fedoraproject.org. 1200 IN AAAA 2607:f188::dead:beef:cafe:fed1
wildcard.fedoraproject.org. 1200 IN AAAA 2001:4178:2:1269::fed2
wildcard.fedoraproject.org. 1200 IN AAAA
2610:28:3090:3001:dead:beef:cafe:fed4
;; Query time: 10 msec
;; SERVER: 2001:4860:4860::8888#53(2001:4860:4860::8888)
;; WHEN: Wed Feb 20 22:13:26 2013
;; MSG SIZE rcvd: 163
Love the beefy theme there...
fed2 is the only one I can't reach, and though the AAAA records are
round-robin, fed2 appears to be the one to which HTTP requests get routed
and tracing that takes me from Salt Lake to Munich by way of Paris before
timing out:
[darton@dkw-vostro ~]$ traceroute6 -N 64 fedoraproject.org
traceroute to fedoraproject.org (2001:4178:2:1269::fed2), 30 hops max, 80
byte packets
1 2001:5b0:216e:9590:280:aeff:fe3f:4965
(2001:5b0:216e:9590:280:aeff:fe3f:4965) 24.672 ms 24.504 ms 24.506 ms
2 * * *
3 2001:5b0:21ff:fffa::100 (2001:5b0:21ff:fffa::100) 1079.945 ms
1237.825 ms 1290.435 ms
4 vlan122.car1.SaltLakeCity1.Level3.net (2001:1900:2100::d9d) 1341.274
ms 1409.308 ms 1411.624 ms
5 vl-11.car2.SaltLakeCity1.Level3.net (2001:1900:4:1::13e) 1489.445 ms
1508.739 ms 1733.181 ms
6 vl-4043.edge3.Denver1.Level3.net (2001:1900:4:1::142) 1578.809 ms
1639.417 ms 1641.692 ms
7 vl-4081.edge6.Denver1.Level3.net (2001:1900:4:1::32) 1641.783 ms
vl-4080.edge6.Denver1.Level3.net (2001:1900:4:1::2e) 1691.372 ms
vl-4081.edge6.Denver1.Level3.net (2001:1900:4:1::32) 1698.425 ms
8 vl-4042.edge1.Chicago2.Level3.net (2001:1900:4:1::36) 1745.349 ms
1745.056 ms 1744.322 ms
9 vl-4067.car1.Chicago1.Level3.net (2001:1900:4:1::1d) 1744.410 ms
1744.489 ms 1737.454 ms
10 vl-4061.car2.NewYork2.Level3.net (2001:1900:4:1::22) 1873.919 ms
1873.887 ms 1870.193 ms
11 vl-4080.car1.NewYork2.Level3.net (2001:1900:4:1::f1) 1766.868 ms
1766.506 ms 1765.284 ms
12 vl-4061.edge2.Washington1.Level3.net (2001:1900:4:1::105) 1767.345 ms
1767.463 ms 1767.493 ms
13 vl-4081.edge1.Washington1.Level3.net (2001:1900:4:1::d5) 1767.633 ms
vl-4083.edge1.Washington1.Level3.net (2001:1900:4:1::dd) 1801.766 ms
vl-4081.edge1.Washington1.Level3.net (2001:1900:4:1::d5) 1801.754 ms
14 vl-4086.edge3.Paris1.Level3.net (2001:1900:6:1::15) 1844.308 ms
1844.440 ms 1844.908 ms
15 vl-4081.edge4.Paris1.Level3.net (2001:1900:5:1::12e) 1844.358 ms
1844.415 ms vl-4080.edge4.Paris1.Level3.net (2001:1900:5:1::12a) 1843.473
ms
16 vl-4060.edge3.Frankfurt1.Level3.net (2001:1900:5:1::215) 1845.091 ms
1845.065 ms 1845.030 ms
17 vl-4043.car1.Munich1.Level3.net (2001:1900:5:1::25e) 1845.052 ms
1845.033 ms 1897.648 ms
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * *
30 * * *
fed4 is a different route:
[darton@dkw-vostro ~]$ traceroute6 2610:28:3090:3001:dead:beef:cafe:fed4
traceroute to 2610:28:3090:3001:dead:beef:cafe:fed4
(2610:28:3090:3001:dead:beef:cafe:fed4), 30 hops max, 80 byte packets
1 2001:5b0:216e:9590:280:aeff:fe3f:4965
(2001:5b0:216e:9590:280:aeff:fe3f:4965) 15.410 ms 15.337 ms 15.269 ms
2 * * *
3 2001:5b0:21ff:fffa::100 (2001:5b0:21ff:fffa::100) 897.468 ms 915.494
ms 975.368 ms
4 vlan122.car1.SaltLakeCity1.Level3.net (2001:1900:2100::d9d) 1026.481
ms 1044.762 ms 1164.987 ms
5 vl-4046.edge5.LosAngeles1.Level3.net (2001:1900:4:1::279) 1198.366 ms
1406.782 ms 1504.377 ms
6 vl-60.edge1.LosAngeles9.Level3.net (2001:1900:12:1::d) 1602.064 ms
789.763 ms 646.960 ms
7 gblx-level3-10G.LosAngeles9.Level3.net (2001:1900:4:3::276) 702.353 ms
733.689 ms 902.689 ms
8 snvang.abilene.ucaid.edu (2001:504:d::bd) 966.739 ms 1006.089 ms
1090.304 ms
9 * * *
10 xe-1-0-2.60.rtr.atla.net.internet2.edu (2001:468:1:60::1) 1260.105 ms
1342.136 ms 1386.991 ms
11 chlt7600-gw-to-chltcrs-gw.ncren.net (2610:28:10c:5::2) 1439.616 ms
1550.497 ms 1630.215 ms
12 manningkid-to-chlt7600-gw.ncren.net (2610:28:10c:7::2) 1034.366 ms
1034.401 ms 1172.668 ms
13 2610:28:3090:23::2 (2610:28:3090:23::2) 1003.700 ms 1017.225 ms *
14 2610:28:3090:3001:dead:beef:cafe:fed4
(2610:28:3090:3001:dead:beef:cafe:fed4) 921.136 ms !X 832.055 ms !X
789.599 ms !X
Any ideas/comparisons/insights appreciated. This is so far the only native
IPv6 connection I have, despite having access to two datacenters and FiOS,
so not much to compare it with. Shameful.
Regards,
Darton Williams
...Yeah, that guy.
