[50385] in North American Network Operators' Group

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Re: routing table size

daemon@ATHENA.MIT.EDU (Ralph Doncaster)
Sat Jul 27 13:37:17 2002

Date: Sat, 27 Jul 2002 13:39:02 -0400 (EDT)
From: Ralph Doncaster <ralph@istop.com>
To: "jlewis@lewis.org" <jlewis@lewis.org>
Cc: "nanog@merit.edu" <nanog@merit.edu>
In-Reply-To: <Pine.LNX.4.44.0207271226030.20657-100000@redhat1.mmaero.com>
Errors-To: owner-nanog-outgoing@merit.edu


> Off your network, your legal rights are pretty limited.  I (and I'm sure 
> lots of other admins) block at the /24 boundry.  Anything you announce 
> from /25 to /32 will be ignored on my network.  Some providers choose to 
> block according to RIR allocation sizes.  To me, that's not worth the 
> maintenance hassle.  To them, it may mean the difference between having to 
> upgrade or replace large numbers of routers last year or sometime in the 
> next few years.

I've never suggested accepting /25's thru /32's.  I'm wondering if the
people saying I should not de-aggregage my /20 actually practice what they
preach and filter /24's and don't globally announce /24's from their
customers.

-Ralph



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