Hi Tim,<br> so I'm trying to figure out your connectivity here..<br><br>From your traceroute below I see:<br>2002:0000:: == 26943 (<a href="http://Your.org">Your.org</a> EU)<br>2001:4978:: == 19255 (<a href="http://Your.org">Your.org</a> NA)<br>
2001:0590:: == 4436 (nLayer)<br>2001:0504:: == Equinix<br>2001:4860:: == 15169 (Google)<br><div class="gmail_quote"><br>And from here I see the following route:<br>2002::/16 *[BGP/170] 2w5d 17:47:22, MED 1000, localpref 1000, from 2001:7f8:1::a500:6777:1<br>
AS path: 26943 I<br><br>and traceroute:<br><br>traceroute6 to 2002:4775:eda1:2::3:0 (2002:4775:eda1:2::3:0) from 2001:7f8:1::a501:5169:1, 30 hops max, 12 byte packets<br> 1 <a href="http://ge-0.3.0.core1.ams.bb6.your.org">ge-0.3.0.core1.ams.bb6.your.org</a> (2001:7f8:1::a502:6943:1) 1.052 ms 0.974 ms 0.904 ms<br>
2 <a href="http://stf.ams.bb6.your.org">stf.ams.bb6.your.org</a> (2001:4978:2:410:211:43ff:fee8:2c76) 0.773 ms 0.836 ms 0.898 ms<br> 3 2002:4775:eda1:: (2002:4775:eda1::) 177.692 ms 177.495 ms 177.302 ms<br> 4 2002:4775:eda1:: (2002:4775:eda1::) 3229.121 ms !A 3178.494 ms !A 3179.705 ms !A<br>
<br><br>Any suggestion on how to fix it?<br><br>Steve<br><br>On Wed, Mar 19, 2008 at 8:28 AM, Tim <<a href="mailto:tim-projects@sentinelchicken.org">tim-projects@sentinelchicken.org</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
Hello,<br>
<br>
Been using <a href="http://ipv6.google.com" target="_blank">ipv6.google.com</a> for a couple of days now as my default search<br>
engine. Been noticing some broken connectivity off and on for the last<br>
day though, so thought I would bring it up. Essentially requests are<br>
just hanging indefinitely. I'm really not well versed in debugging<br>
routing issues, but here's what I'm seeing:<br>
<br>
~> host <a href="http://ipv6.google.com" target="_blank">ipv6.google.com</a><br>
<div class="Ih2E3d"><a href="http://ipv6.google.com" target="_blank">ipv6.google.com</a> is an alias for <a href="http://ipv6.l.google.com" target="_blank">ipv6.l.google.com</a>.<br>
</div><a href="http://ipv6.l.google.com" target="_blank">ipv6.l.google.com</a> has IPv6 address 2001:4860:0:2001::68<br>
<br>
~> tracepath6 -n 2001:4860:0:2001::68<br>
1?: [LOCALHOST] pmtu 1500<br>
1: 2002:4775:eda1:2:: 0.409ms<br>
1: 2002:4775:eda1:2:: 0.322ms<br>
2: 2002:4775:eda1:2:: 0.329ms pmtu 1480<br>
2: 2002:c058:6301:: 80.294ms<br>
2: 2002:c058:6301:: 79.992ms<br>
3: 2001:4978:1:410::ffff 82.114ms asymm 4<br>
4: 2001:590::451f:6f15 82.759ms<br>
5: 2001:590::451f:6f85 81.871ms asymm 6<br>
6: 2001:590::4516:8e3d 100.075ms asymm 7<br>
7: 2001:504:0:2:0:1:5169:1 182.722ms !A<br>
Resume: pmtu 1480<br>
<br>
~> traceroute6 -n 2001:4860:0:2001::68<br>
traceroute to 2001:4860:0:2001::68 (2001:4860:0:2001::68) from<br>
2002:4775:eda1:2::3:0, 30 hops max, 24 byte packets<br>
1 2002:4775:eda1:2:: 0.163 ms 0.077 ms 0.075 ms<br>
2 2002:c058:6301:: 75.727 ms 75.02 ms 74.404 ms<br>
3 2001:4978:1:410::ffff 75.002 ms 77.831 ms 74.701 ms<br>
4 2001:590::451f:6f15 75.074 ms 75.207 ms 74.954 ms<br>
5 2001:590::451f:6f85 74.655 ms 75.046 ms 77.293 ms<br>
6 2001:590::4516:8e3d 94.994 ms 95.442 ms 92.119 ms<br>
7 2001:504:0:2:0:1:5169:1 179.96 ms 177.397 ms 177.797 ms<br>
8 * * *<br>
9 2001:4860:0:2001::68 180.935 ms 179.936 ms 180.038 ms<br>
<br>
<br>
As you can see, I'm using 6to4. I'm able to reach my web server which<br>
is also on 6to4, but that's probably not a surprise. The other service<br>
I use over v6 is IRC, and that's not on 6to4:<br>
<br>
~> host <a href="http://ipv6.chat.freenode.net" target="_blank">ipv6.chat.freenode.net</a><br>
<a href="http://ipv6.chat.freenode.net" target="_blank">ipv6.chat.freenode.net</a> has IPv6 address 2001:6b0:e:2018::172<br>
<a href="http://ipv6.chat.freenode.net" target="_blank">ipv6.chat.freenode.net</a> has IPv6 address 2001:1418:13:1::25<br>
<br>
~> tracepath6 -n 2001:1418:13:1::25<br>
1?: [LOCALHOST] pmtu 1500<br>
1: 2002:4775:eda1:2:: 1.523ms<br>
1: 2002:4775:eda1:2:: 0.326ms<br>
2: 2002:4775:eda1:2:: 0.329ms pmtu 1480<br>
2: 2002:c058:6301:: 80.374ms<br>
2: 2002:c058:6301:: 79.961ms<br>
3: 2001:4978:1:410::ffff 82.109ms asymm 4<br>
4: 2001:1838::40ca:6f26 82.559ms<br>
5: 2001:1838::d8f6:5ff2 83.169ms asymm 6<br>
6: 2001:1900:4:2::29 225.737ms asymm 8<br>
7: 2001:1900:4:1::5 228.644ms<br>
8: 2001:1900:6:1::1 230.432ms asymm 6<br>
9: 2001:1900:6:1::1 227.034ms pmtu 1450<br>
9: 2001:1900:5:2::2a 227.557ms asymm 5<br>
9: 2001:1900:5:2::2a 229.557ms asymm 5<br>
10: 2001:1418:1:700::a 232.490ms asymm 6<br>
11: 2001:1418:13:1::25 227.824ms reached<br>
Resume: pmtu 1450 hops 11 back 58<br>
<br>
~> tracepath6 -n 2001:6b0:e:2018::172<br>
1?: [LOCALHOST] pmtu 1500<br>
1: 2002:4775:eda1:2:: 1.089ms<br>
1: 2002:4775:eda1:2:: 0.443ms<br>
2: 2002:4775:eda1:2:: 0.330ms pmtu 1480<br>
2: 2002:c058:6301:: 80.614ms<br>
2: 2002:c058:6301:: 82.639ms<br>
3: 2001:4978:1:410::ffff 83.005ms asymm 4<br>
4: 2001:470:0:7f::1 83.713ms<br>
5: 2001:470:0:4e::2 103.043ms<br>
6: 2001:470:0:3e::2 172.584ms<br>
7: 2001:470:0:3f::2 182.677ms<br>
8: 2001:7f8:1::a500:2603:1 201.492ms<br>
9: 2001:948:0:f03f::1 203.493ms asymm 7<br>
10: 2001:948:0:f053::2 199.304ms asymm 4<br>
11: 2001:6b0:dead:beef:2::de 198.864ms asymm 5<br>
12: 2001:6b0:dead:beef:2::2e6 211.988ms asymm 5<br>
13: 2001:6b0:e::51 211.150ms asymm 6<br>
14: 2001:6b0:e::62 217.762ms asymm 7<br>
15: 2001:6b0:e:2018::172 210.209ms reached<br>
Resume: pmtu 1480 hops 15 back 57<br>
<br>
And this seems to be working fine for me (though it did drop<br>
connectivity last night, but that could have just been the periodic DoS<br>
attacks the network receives.)<br>
<br>
However, <a href="http://www.arin.net" target="_blank">www.arin.net</a> is also giving me issues, as it too is hanging<br>
indefinitely and the tracepath doesn't look so hot:<br>
<br>
~> host <a href="http://www.arin.net" target="_blank">www.arin.net</a><br>
<a href="http://www.arin.net" target="_blank">www.arin.net</a> has address <a href="http://192.149.252.7" target="_blank">192.149.252.7</a><br>
<a href="http://www.arin.net" target="_blank">www.arin.net</a> has address <a href="http://199.43.0.202" target="_blank">199.43.0.202</a><br>
<a href="http://www.arin.net" target="_blank">www.arin.net</a> has IPv6 address 2001:500:4:1::80<br>
<br>
~> tracepath6 -n 2001:500:4:1::80<br>
1?: [LOCALHOST] pmtu 1500<br>
1: 2002:4775:eda1:2:: 1.377ms<br>
1: 2002:4775:eda1:2:: 0.324ms<br>
2: 2002:4775:eda1:2:: 0.321ms pmtu 1480<br>
2: 2002:c058:6301:: 80.520ms<br>
2: 2002:c058:6301:: 79.490ms<br>
3: 2001:4978:1:410::ffff 82.598ms asymm 4<br>
4: 2001:470:0:7f::1 82.174ms<br>
5: 2001:470:0:4e::2 102.798ms<br>
6: 2001:470:0:36::1 110.181ms<br>
7: 2001:504:0:2:0:1:745:1 207.068ms asymm 8<br>
8: no reply<br>
9: no reply<br>
10: no reply<br>
...<br>
<br>
<br>
<br>
Anything else I could run to help provide more info?<br>
<br>
thanks,<br>
<font color="#888888">tim<br>
</font></blockquote></div><br><br clear="all"><br>-- <br>Global Infrastructure<br>Google Inc.