[99027] in North American Network Operators' Group
Re: An informal survey... round II
daemon@ATHENA.MIT.EDU (Jon Lewis)
Thu Aug 30 09:29:47 2007
Date: Thu, 30 Aug 2007 09:26:12 -0400 (EDT)
From: Jon Lewis <jlewis@lewis.org>
To: William Herrin <herrin-nanog@dirtside.com>
cc: John Curran <jcurran@mail.com>, nanog list <nanog@merit.edu>
In-Reply-To: <3c3e3fca0708300612y5e236392y6b954ee03947087f@mail.gmail.com>
Errors-To: owner-nanog@merit.edu
On Thu, 30 Aug 2007, William Herrin wrote:
> Why should we announce tiny recycled blocks? If there is a /16 in the
> swamp in which half the space is free but its all /24's, why wouldn't
> wouldn't we allocate all the free /24's to a single entity and
> instruct the entity to announce it as a "holey" /16? The existing /24
> holders will override (punch holes in) the /16 for their /24's.
Except when there are /24-holder outages, at which point their traffic 
gets hijacked by the /16 announcer.  Would you want to trust some random 
company to not take advantage of that situation in any way (collection of 
passwords, sampling your web traffic, putting up a fake "your org" web 
site, etc.)?  As a holey /16 announcer, would you want all the junk 
traffic that results from /24-holder outages?  What if one of them was 
running NS's for a popular DNSBL, and their outage basically caused a DDoS 
attack against your network?
----------------------------------------------------------------------
  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                |
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