Bad IPv6 connectivity or why not to announce more specifics (Was: IPv6 news)

Thu Oct 13 21:26:25 UTC 2005

Valdis.Kletnieks at vt.edu wrote:

>Somehow, I don't think anything that Abilene does is going to fix Jordi's
>routing.  From where *you* are, do *you* have a path to 2001:0440:1880:1000::0020
>that *doesn't go through Japan?  If so, what does your path look like?
>  
>
At least some parts of the US seem to.
This wouldn't be so bad if I didn't have to go across the US to get to 
the first hop:

FT at vash:~$ /usr/sbin/ntpdate -q 2001:0440:1880:1000::0020 192.36.143.234
server 2001:440:1880:1000::20, stratum 1, offset -0.005350, delay 0.27211
server 192.36.143.234, stratum 1, offset 0.002036, delay 0.15575
13 Oct 16:13:39 ntpdate[1526]: adjust time server 192.36.143.234 offset 
0.002036 sec

FT at vash:~$ /usr/sbin/traceroute6 2001:0440:1880:1000::0020
traceroute to 2001:0440:1880:1000::0020 (2001:440:1880:1000::20) from 
2001:470:1f00:ffff::649, 30 hops max, 16 byte packets
 1  tommydool.tunnel.tserv1.fmt.ipv6.he.net (2001:470:1f00:ffff::648)  
67.52 ms  70.567 ms  68.182 ms
 2  2001:470:1fff:2::26 (2001:470:1fff:2::26)  67.607 ms  68.592 ms  
70.168 ms
 3  sl-bb1v6-rly-t-76.sprintv6.net (3ffe:2900:a:1::1)  143.214 ms  
144.479 ms  145.113 ms
 4  sl-s1v6-nyc-t-1000.sprintv6.net (2001:440:1239:1001::2)  150.654 ms  
147.692 ms  151.378 ms
 5  sl-bb1v6-sto-t-102.sprintv6.net (2001:440:1239:100d::2)  244.013 ms 
sl-bb1v6-sto-t-101.sprintv6.net (2001:440:1239:1012::1)  246.934 ms 
sl-bb1v6-sto-t-102.sprintv6.net (2001:440:1239:100d::2)  240.373 ms
 6  2001:7f8:d:fb::34 (2001:7f8:d:fb::34)  262.842 ms  261.69 ms  263.779 ms
 7  2001:440:1880:1::2 (2001:440:1880:1::2)  258.422 ms  266.312 ms  
264.051 ms
 8  2001:440:1880:1::12 (2001:440:1880:1::12)  250.289 ms  265.565 ms  
267.93 ms
 9  2001:440:1880:1000::20 (2001:440:1880:1000::20)  246.908 ms  249.03 
ms  247.193 ms