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Date: Wed, 9 Aug 2000 23:52:46 -0700
From: "Crist J . Clark" <cjclark@reflexnet.net>
To: "Dale E. Chulhan" <dchulhan@uwi.tt>
Cc: My List <TheTechies@onelist.com>,
	"chat@FreeBSD.ORG" <chat@FreeBSD.ORG>
Subject: Re: Non-standard internal addressing
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In-Reply-To: <3991FD90.511D6EC9@uwi.tt>; from dchulhan@uwi.tt on Wed, Aug 09, 2000 at 08:55:45PM -0400
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On Wed, Aug 09, 2000 at 08:55:45PM -0400, Dale E. Chulhan wrote:
> The private IP network allocations include one Class A network, 10.0.0.0; 16
> Class B networks, 172.16.0.0-172.31.0.0; and 256 Class C networks,
> 192.168.0.0-192.168.255.0 
> 
> What are the ramifications of using non allocated addresses for an INTRANET
> connecting to the outside world through a proxy using say 200.0.0.1-200.0.0.255
> 255.255.0.0

  $ whois -a 200.0.0.1
  HOCOL S.A.
   (NETBLK-SHELL) NETBLK-SHELL             200.0.0.0 - 200.0.7.0
  HOCOL S.A.
   (NET-SHELL-1)  SHELL-1                              200.0.0.0
  .
  .
  [snip]
  $ whois -a '!NET-SHELL-1'
  HOCOL S.A.
   (NET-SHELL-1)
     Bocagrande Carrerea 3a. No. 8-06
     Apartado Aereo 0083
     Cartagena
     CO
     .
     .
  [snip]

The BIG problem:

  How are you going to route to those addresses? What if you want to
  send some packets to Columbia?

The LESS BIG problem:

  If you leak packets, they'll likely find their way to 200/24. Excuse
  the national stereotypes, but you sure you want some Columbians mad
  at you for DoS'ing their systems?

-- 
Crist J. Clark                           cjclark@alum.mit.com


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