Great Circle Associates Firewalls
(April 1995)
 

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Subject: Re: Registered IP vs unregistered
From: bmanning @ ISI . EDU
Date: Wed, 12 Apr 1995 05:16:18 -0700 (PDT)
To: dave @ corecom . com (David M. Piscitello)
Cc: markk @ internic . net, Matthew . Huff @ tasb . org, firewalls @ greatcircle . com
In-reply-to: <abaff18c050210048b0a @ [192 . 67 . 239 . 214]> from "David M. Piscitello" at Apr 11, 95 08:02:24 am
Posted-date: Wed, 12 Apr 1995 05:16:18 -0700 (PDT)

Dave P. writes:

> There is also the issue of whether an IP address you
> acquire from a source other than the ISP you subscribe
> to interferes with address aggregation. If large numbers
> of holes are punched in ISP CIDR blocks, aggregation
> fails, routing tables grow beyond what can be sored in
> current router resources, and we are hosed.

This happens today.  The basic premise is that once delegated, its
gone.

> At 8:48 PM 4/10/95, Mark Kosters wrote:
> >That is correct. Plus we are running out of class C space. With our
> >current growth rates, we will be out of class C's withing the next
> >two years.
> >

The basic problem here is that people are -STILL- thinking in terms
of classfull addressing.   These things aren't "C" addresses, they
are /24 prefixes.

Now when we start carving up /8 space into /24 allocations, that will
be interesting.

-- 
--bill



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