L3: Google from DC via the Netherlands?

Stephen Stuart stuart at tech.org
Fri Feb 6 18:51:31 CST 2009


> On Fri, Feb 06, 2009 at 12:05:41PM -0500, Peter Beckman wrote:
> > I'm OK to that IP as well, but when I query www.google.com, I get multiple
> > IPs, but here are the ones that in in 147:
> >
> > DNS Server                  IP              Route (for me)
> > 205.234.170.217 (tiggee)    74.125.79.147   Amsterdam
> > 208.67.222.222 (opendns)    64.233.183.147  Amsterdam
> > 4.2.2.1 (verizon)           74.125.19.147   San Jose
> > 198.6.1.3 (uu.net/verizon)  74.125.47.147   Washington DC (yay)
> >
> > That's a lot of different answers for the same question!
> 
> And you can add this one to your list:
> 
> DNS Server                    IP
> 212.27.40.240 (free/proxad)   2001:4860:A003:0:0:0:0:68
> 
> $ host -t AAAA www.google.com 212.27.40.240
> www.google.com      	CNAME	www.l.google.com
> www.l.google.com    	AAAA	2001:4860:A003:0:0:0:0:68
> 
> As you can see, no need for http://ipv6.google.com/ to reach Google
> over IPv6 using default DNS resolver provided by some French ISPs.
> www.google.com starts to be resolved as an IPv4/IPv6 website.

Certain IPv6-capable networks are able to get AAAA responses from us,
yes. Read: 

    http://www.google.com/ipv6/

Stephen




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