I am seeing the same behavior, since at least some time last night. From a non-sixxs machine in Germany, and from a sixxs tunnel from uschi02 I can traceroute6 to 2001:4830:e1:b::2, which I think is the sixxs box endpoint; it's one hop beyond the box that terminates my tunnel, If I try to traceroute6 to 2001:4830:1100::1 (not a valid address probably, but should hit the /48 routing entry), I stop from .de at 7 ibr01-ve26.lndn01.occaid.net 16.76 ms !N 17.215 ms !N 16.841 ms !N and from uschi02 at 2 gw-627.chi-02.us.sixxs.net 25.536 ms 26.51 ms 26.02 ms 3 unassigned.v6.your.org 26.603 ms 25.822 ms 26.05 ms 4 sixxs.ge-0.0.0-30.core1.chi.bb6.your.org 26.329 ms 26.824 ms 27.738 ms 5 unassigned.v6.your.org 26.338 ms 26.394 ms 26.427 ms 6 unknown.ipv6.scnet.net 26.168 ms 26.226 ms 26.211 ms 7 ae13-0.cr1.ord6.scnet.net 26.881 ms 26.922 ms 27.118 ms 8 lag-27.ear1.Chicago2.Level3.net 34.438 ms 27.573 ms 27.624 ms 9 * vl-51.ear2.Chicago2.Level3.net 28.649 ms 203.978 ms 10 2001:1900:4:1::be 48.783 ms 48.664 ms 48.34 ms 11 2001:1900:4:1::4ad 49.078 ms 48.951 ms 48.952 ms 12 vl-4086.edge3.London1.Level3.net 117.344 ms 116.55 ms 116.213 ms 13 vl-51.sar1.London1.Level3.net 245.356 ms 301.795 ms 292.682 ms 14 ibr02-ve26.lndn01.occaid.net 119.453 ms !N 119.147 ms !N 119.205 ms !N From panix (NYC): 6 ibr01-ve96.asbn01.occaid.net 7.226 ms !N 6.969 ms !N 7.107 ms !N I get similar results with my actual tunnel address, except that I have shortcut routes via a private tunnel among some of my sites. I also have similar results from a box at ISC colo in San Francisco (which has traceroute issues, but confirmed with ping6. So it looks to me like the 2001:4830:1100::/48 prefix is not getting into occaid's IGP.

I'm seeing the same as well, it started last night. traceroute6 www.sixxs.net traceroute6: Warning: nginx.sixxs.net has multiple addresses; using 2001:960:800::2 traceroute6 to nginx.sixxs.net (2001:960:800::2) from 2001:4830:1100:******, 64 hops max, 12 byte packets 1 2001:4830:1100:****** 6.633 ms 0.759 ms 0.542 ms 2 gw-800.bos-01.us.sixxs.net 23.135 ms 25.638 ms 21.415 ms 3 sixxs-ic-1139-bos.customer.occaid.net 22.313 ms 25.702 ms 22.331 ms 4 dcr01-ve402.bstn01.occaid.net 22.337 ms 23.614 ms 22.129 ms 5 * * * 6 * * * 7 * * * 8 * * * 9 * * * 10 * * *

Same problem here: # traceroute6 www.facebook.com traceroute to star.c10r.facebook.com (2a03:2880:11:1f04:face:b00c:0:1) from 2001:4830:1100:1fa::2, 30 hops max, 16 byte packets 1 gw-507.bos-01.us.sixxs.net (2001:4830:1100:1fa::1) 2.819 ms 2.687 ms 2.711 ms 2 sixxs-ic-1139-bos.customer.occaid.net (2001:4830:e1:b::2) 2.742 ms 2.736 ms 2.75 ms 3 dcr01-ve402.bstn01.occaid.net (2001:4830:e1:b::1) 2.823 ms 2.786 ms 2.827 ms 4 * * * Looks from my MRTG like it started at 1615 Eastern yesterday (10/20).

Me too! From TekSavvy's (Canada) native IPv6 to my tunnel: pablob@lennie:~$ traceroute6 2001:4830:1100:32e::2 traceroute to 2001:4830:1100:32e::2 (2001:4830:1100:32e::2), 30 hops max, 80 byte packets 1 node-77b29keehjsye4wp729.ipv6.teksavvy.com (2607:f2c0:f00f:e00::1) 1.330 ms 1.651 ms 3.831 ms 2 node-4stumn9czaceuw4ucqp.ipv6.teksavvy.com (2607:f2c0:a000:1a::1) 51.873 ms 54.186 ms 56.669 ms 3 ae0_2140-bdr04-tor.teksavvy.com (2607:f2c0:1:2140::4) 58.037 ms 62.408 ms ae1_2150-bdr04-tor.teksavvy.com (2607:f2c0:1:2150::4) 66.628 ms 4 10gigabitethernet9-9.core1.tor1.he.net (2001:504:d:80::6939:1) 66.050 ms 67.948 ms 71.840 ms 5 100ge7-2.core1.nyc4.he.net (2001:470:0:2dc::1) 90.506 ms 90.601 ms 90.830 ms 6 100ge15-1.core1.ash1.he.net (2001:470:0:299::1) 99.717 ms 68.570 ms 72.734 ms 7 ibr01-ve96.asbn01.occaid.net (2001:504:0:2:0:3:71:1) 68.346 ms 69.846 ms 73.597 ms 8 ibr01-ve96.asbn01.occaid.net (2001:504:0:2:0:3:71:1) 76.065 ms !N 78.109 ms !N 80.307 ms !N As the others, outbound traceroute ends at dcr01-ve402.bstn01.occaid.net (in my phone, so I cannot easily paste the output). Thanks!

The state of this ticket has been changed to confirmed

The state of this ticket has been changed to resolved

Hello, It looks like this issue in a routing issue with the Boston PoP / within Occaid's network. Came back: $ tracepath6 www.sixxs.net 1?: [LOCALHOST] 0.006ms pmtu 1500 1: gateway 0.699ms 1: gateway 0.596ms 2: gateway 0.760ms pmtu 1280 2: gw-326.bos-01.us.sixxs.net 29.133ms 3: sixxs-ic-1139-bos.customer.occaid.net 29.046ms asymm 2 4: dcr01-ve402.bstn01.occaid.net 29.428ms !N Or should I open new ticket? Thank you in advance, Alex

I can confirm that I'm also seeing this issue with the Boston PoP.