[95861] in North American Network Operators' Group
Re: Abuse procedures... Reality Checks
daemon@ATHENA.MIT.EDU (Chris Owen)
Sat Apr 7 19:37:27 2007
In-Reply-To: <20070407.160052.3967.2722409@webmail05.lax.untd.com>
From: Chris Owen <owenc@hubris.net>
Date: Sat, 7 Apr 2007 18:30:59 -0500
To: nanog@merit.edu
Errors-To: owner-nanog@merit.edu
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On Apr 7, 2007, at 11:00 PM, Fergie wrote:
> I would think that it's actually very easy to do when
> sub-allocations are SWIP'ed.
Not that I'm really defending this policy, but sub-allocations are
very often not SWIPed. I'd say 75% or more of the time I'm looking a
problem IP address it is part of a /19 or larger block with no sub-
allocation.
For example, I know for a fact that 70.167.38.132 is part of a
netblock assigned to a business (I believe it is a /28 or /27). It
is routed to them over a DS1 or similar cable equivalent. They run a
handful of servers behind including public hosting a half dozen
corporate web sites and a mail server. Clearly these addresses have
been assigned to this business.
Yet:
owenc@corp:~$ whois 70.167.38.132Cox Communications Inc. NETBLK-COX-
ATLANTA-10 (NET-70-160-0-0-1)
70.160.0.0 - 70.191.255.255
Cox Communications Inc. NETBLK-WI-OHFC-70-167-32-0 (NET-70-167-32-0-1)
70.167.32.0 - 70.167.63.255
No rwhois server available.
And Cox is actually better than some. That's only a /19. I've seen
much larger blocks than this. Somehow I doubt if we pulled that with
our /20 I doubt we'd have a /19 now.
Chris
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Chris Owen ~ Garden City (620) 275-1900 ~ Lottery (noun):
President ~ Wichita (316) 858-3000 ~ A stupidity tax
Hubris Communications Inc www.hubris.net
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