Re: IPV6 connection to www.debian.org
On 05-15 19:45, Simon Paillard wrote:
> Hi Osamu,
> On Tue, May 15, 2012 at 11:03:10PM +0900, Osamu Aoki wrote:
> > Recently, my fiber-connection ISP moved to serve IPV6. This has made me
> > access www.debian.org via IPV6.
> > Somehow, I get very slow connection occasionally. I am suspecting
> > configuration problem on my side. (IPV6->IPV4 fall back issue?) But
> > this problem happens only with www.debian.org and less with some page
> > like http://www.debian.org/Bugs/ .
> The DNS TTL is 300s for www.debian.org, so the fact it's occasional
> certainly depends on the web server you connect to.
> First, please check which view is served for you:
> $ dig +short TXT www.debian.org @geo1.debian.org
> You can also check which ip you connect to.
> I've check v4 vs v6 latency/rates for all our webmirrors, nothing
BTW. What geolocation database is debian NS servers use for IPv6?
For example it thinks my tunnel which have endpoint in Frankfurt or
Amsterdam are in NA (North America), not EU. :(
For example for Hurrican Electrics it have lots of end points
and (based on my own info, info from webpage, dns and from telnet route-server.he.net.) for example
tserv6.fra1.ipv6.he.net (2001:470:0:6a::1, 188.8.131.52) serves a 2001:470:1f0b::/48 is located in Frankfurt, DE
near core1.fra1.he.net router: Interxion Frankfurt 184.108.40.206 2001:470:0:2a::1
tserv11.ams1.ipv6.he.net (2001:470:0:7e::1, 220.127.116.11) serves a 2001:470:1f15::/48 is located in Amsterdam, NL
near core1.ams1.he.net router: NIKHEF Amsterdam 18.104.22.168 2001:470:0:e::1
tserv28.waw1.ipv6.he.net (22.214.171.124) serves a 2001:470:71::/48 is located in Warsaw, PL
near core1.waw1.he.net router: PLIX Warsaw 126.96.36.199 2001:470:0:215::1
This servers also serves other /48 blocks, but they are rare, because
normally they allocate /64 subblocks from this /48 mentioned above.
`dig -6 -TXT www.debian.org @geo1.debian.org` thinks I'm in NA.
All servers listed here http://tunnelbroker.net/status.php and core routers using telnet router-server.he.net
I however do not know how to extract all prefixes for each server easly.
I know tunneled connections are problematic, but still as my IPv6
address is essentially behind router/server in Frankfurt, it should be
mapping me to Europe at least, not America.
JID: witold.baryluk // jabster.pl