[22487] in North American Network Operators' Group
Re: Where's 209.240.157.34 ?
daemon@ATHENA.MIT.EDU (Richard Parker)
Tue Jan 5 19:42:54 1999
Date: Tue, 05 Jan 1999 16:21:04 -0800
From: "Richard Parker" <richard-parker@home.com>
To: Chris Bradley <cbradley@arcmail.com>
CC: John R Levine <johnl@iecc.com>, nanog@merit.edu
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
