ipv6.google.com

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Google is reachable via IPv6 : http://ipv6.google.com/

So far, it's only their search engine, not any of their apps. And none of their nameservers are reachable via IPv6 yet. But it's a start.

I keep hearing that IPv6 will only be "successful" when the major web sites (google, yahoo, facebook, ebay, paypal, etc) start using it. This is a big step in the right direction.

I should point out that latency over IPv6 is terrible (from AS3999): 20.6 ms over IPv4 -vs- 251.3 ms over IPv6. It looks like the Internet2 → Global Crossing → Google routing is still very sub-optimal:

$ traceroute6 -n ipv6.google.com
traceroute6 to ipv6.l.google.com (2001:4860:0:1001::68) from 2610:8:6800:1::408, 30 hops max, 12 byte packets
 1  2610:8:6800:1::1  39.817 ms  10.278 ms  10.136 ms
 2  2001:5e8::fffe:0:1:4:102  10.058 ms  10.055 ms  10.049 ms
 3  2001:5e8::fffe:0:1:4:101  10.048 ms  10.045 ms  9.395 ms
 4  2001:5e8:0:1::1:fd  10.704 ms *  6.579 ms
 5  2001:5e8::fffd:0:2:2:2  14.951 ms  18.307 ms  12.993 ms
 6  2001:468:ff:109::1  30.25 ms  26.884 ms  36.155 ms
 7  2001:468:ff:103::1  48.942 ms  51.061 ms  48.879 ms
 8  2001:468:ff:304::2  81.231 ms  85.703 ms  87.645 ms
 9  3ffe:80a::c  98.942 ms  90.235 ms  98.992 ms
10  2001:450:2001:1000::670:1708:179  335.792 ms  168.063 ms  174.705 ms
11  2001:7f8:1::a501:5169:1  251.204 ms  248.744 ms  250.161 ms
12  * * *
13  2001:4860:0:1001::68  246.633 ms  249.771 ms  248.692 ms
(As an aside, why is there a 6bone address (3ffe:80a::c) in there? The 6bone address space was deprecated years ago.)

If I had to guess, I'd say that the IPv6 servers are in Europe, since 2001:7f8:1::/48 is assigned to the AMS-IX Exchange Point.


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9 Comments

Lapo Luchini said:

From my server in Nuremberg (Germany) IPv4 pings in 14ms and IPv6 pings in 118ms, with 12 hops.
On the other hand, from my home in Milan (Italy), the roundtrip is similar*: around 72ms both on IPv4 and IPv6 (it's an interleaved ADSL, so 50ms are lost in the first hop).

* I have that time only for the 2001:4860:0:1001::68 address, while 2001:4860:0:2001::68 pings in 150ms; both routes are 6 hops long and all the "extra" time is lost in the last hop.

Eto said:

It would appear that Cisco.com is also accessible over IPv6 at http://www.ipv6.cisco.com/

Derek Morr Author Profile Page said:

I can barely connect to http://www.ipv6.cisco.com/. The connection has extremely high latency for me.

xnyhps said:

Note that you can access most of the Google Apps by pointing their hostname to the same IPv6 address in /ect/hosts. Like:

2001:4860:0:1001::68 gmail.com mail.google.com

Now you've got GMail over IPv6!

Pieter van Leuven said:

Today I noticed that new IPv6 servers are used (at least for me) by google. The 'cache-link' contains an IPv6 address: http://[2001:4860:0:1001::28]/search?q=cache:YqLrl1H-aFgJ:nl.wikipedia.org/wiki/Internet_Protocol_Version_6+ipv6&hl=nl&ct=clnk&cd=1&gl=nl

Derek Morr Author Profile Page said:

Cool! I see it too.

Hans said:

Google now offers it's services via IPv6 to ISPs:
http://www.google.com/intl/en/ipv6/faq.html

Franklyn said:

I couldn't connect with IPv6. How to connect my network to IPv6?

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Derek Morr Author Profile Page said:

Franklyn,

If your ISP does not offer native IPv6, you can setup a tunnel from a tunnelbroker. Hurricane Electric has a good tunnel broker service.

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