[122334] in North American Network Operators' Group
Re: 192.255.103.x
daemon@ATHENA.MIT.EDU (James Hess)
Thu Feb 11 21:12:46 2010
In-Reply-To: <c7ef7cf71002111730i64f887a7lee7c8007985fdc69@mail.gmail.com>
Date: Thu, 11 Feb 2010 20:12:01 -0600
From: James Hess <mysidia@gmail.com>
To: Hector Herrera <hectorherrera@gmail.com>
Cc: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Thu, Feb 11, 2010 at 7:30 PM, Hector Herrera <hectorherrera@gmail.com> wrote:
> As far as I can tell from IANA, the block 192/8 is allocated to ARIN.
> ARIN does not have a record of 192.255.103 being allocated to anybody.
I can infer very strongly that the block has probably not been
allocated, or if it was, has not been properly listed in the directory
as allocated yet.
Look at the DNS delegation of the reverse DNS. Y.arin.net
replies NXDOMAIN for the 192.255.103.in-addr.arpa zone with
authority, indicating no rDNS delegation.
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 16598
;; flags: qr aa rd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
The RADB and RIS are good sources to query also.
http://www.ris.ripe.net/mt/prefixdashboard.html?prefix=192.255.103.0
"This prefix does not appear to be announced. It was not seen by RIS
in the last 3 months. See below for related prefixes.
Related (overlapping) prefixes seen by RIS in the last 30 days
No prefixes found.
This prefix has 0 visibility.
"
--
-J
