North American Network Operators Group

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Re: Where's ?

  • From: Richard Parker
  • Date: Tue Jan 05 20:12:09 1999

Chris Bradley wrote:

>Richard Parker wrote:
>> John R Levine wrote
>> >Where's ?
>> >
>> >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.
>> 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?"