Re: Where's 209.240.157.34 ?

["Richard Parker" <richard-parker () home com>]

Chris Bradley wrote:

> Richard Parker wrote:
>
> > John R Levine wrote
> > > Where's 209.240.157.34 ?
> > >
> > > Got a spam advertising a web page there, ARIN claims it's not allocated
> > > although all the space around it is.  It routes through Tierranet.
>
> [edit]
>
> > Perhaps ARIN has reserved the entire /19 for TierraNet, but only
> > actually allocated the lower /20 to them?  Perhaps TierraNet is
> > announcing their /20 as a /19 to get past Sprint's route filters?
>
> ARIN policy for initial allocations to ISPs declares that a provider will be
> allowed to temporarily announce a /19, when they have been allocated a /20.

Well...that explains why they're announcing a /19 when they've been
allocated a /20, but it leaves the question "Why do they have machines
with addresses in the top portion of the /19 announcement that are not
in the /20 they've been allocated?"

-Richard