Google served from non-google IPs?

Sat Mar 14 20:05:50 UTC 2015

I'm surprised they don't set aside a small piece of their IP space that an
ISP can anycast routes locally to the cache (Maybe a /24?)

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On Sat, Mar 14, 2015 at 3:55 PM, Dave Temkin <dave at temk.in> wrote:

> Seems like an odd waste of resources; what if Google, Akamai, Netflix, and
> anyone else who wanted caches wanted IPs in that block? The IX would be out
> of address space pretty quickly, forcing a majority of users to re-number
> because of a small number of other users.
>
> -Dave
>
> On Thu, Mar 12, 2015 at 1:07 PM, Steven Schecter <schecter at gmail.com>
> wrote:
>
> > Those IPs appear to be used by to Google cache servers at the QIX.  It's
> > common for CDNs to utilize provider space and not maintain their own
> > layer-3.  E.g. cache servers connected to switch, connected to provider,
> > without the requirement of a router.
> >
> >
> > /Steve
> >
> > On Thu, Mar 12, 2015 at 3:58 PM, Jason Lixfeld <jason at lixfeld.ca> wrote:
> >
> > > So today, I saw this:
> > >
> > > BlackBox:~ jlixfeld$ host google.ca 8.8.8.8
> > > Using domain server:
> > > Name: 8.8.8.8
> > > Address: 8.8.8.8#53
> > > Aliases:
> > >
> > > google.ca has address 206.126.112.166
> > > google.ca has address 206.126.112.177
> > > google.ca has address 206.126.112.172
> > > google.ca has address 206.126.112.187
> > > google.ca has address 206.126.112.151
> > > google.ca has address 206.126.112.158
> > > google.ca has address 206.126.112.157
> > > google.ca has address 206.126.112.173
> > > google.ca has address 206.126.112.181
> > > google.ca has address 206.126.112.155
> > > google.ca has address 206.126.112.147
> > > google.ca has address 206.126.112.185
> > > google.ca has address 206.126.112.143
> > > google.ca has address 206.126.112.170
> > > google.ca has address 206.126.112.162
> > > google.ca has IPv6 address 2607:f8b0:4006:808::100f
> > > google.ca mail is handled by 50 alt4.aspmx.l.google.com.
> > > google.ca mail is handled by 30 alt2.aspmx.l.google.com.
> > > google.ca mail is handled by 20 alt1.aspmx.l.google.com.
> > > google.ca mail is handled by 10 aspmx.l.google.com.
> > > google.ca mail is handled by 40 alt3.aspmx.l.google.com.
> > > BlackBox:~ jlixfeld$
> > >
> > > That is not Google IPv4 address space, and those IPv4 IPs are not being
> > > announced by 15169.
> > >
> > > Am I dumb in thinking that this is weird or is this sort of thing
> > > commonplace?
> >
> >
> >
> >
> > --
> > Steven J. Schecter
> > (m) 917.676.1646
> >
>