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Subject: New IANA IPv4 allocations and bogon updates
From: Rob Thomas <[log in to unmask]>
Reply-To:Network management discussion for Nordic region <[log in to unmask]>
Date:Fri, 4 Apr 2003 10:17:22 -0600

TEXT/PLAIN (66 lines)

Hello, NORDNOG folks.

[ Apologies to those who have received this post in other fora. ]

The numerous Team Cymru bogon projects have been updated to reflect the
following IANA allocation on April 04, 2003:

201/8   Apr 03   LACNIC                              (

IANA allocations change over time, so please check regularly to ensure
you have the latest filters if you are not using the bogon BGP feed(s).
We do announce updates to the bogon projects to the FIRST community, as
well as on lists such as NANOG, isp-routing, isp-security, isp-bgp,
cisco-nsp, and bogon-announce.  We can not stress this point strongly
enough - these allocations change. If you do not adjust your filters,
you will be unable to access perhaps large portions of the Internet.
Worse yet, you may end up blocking access for people who transit through

Please do not blindly apply any filters or blocks to your network
without carefully considering the ramifications of doing so.

As a point of reference, the master Bogon Reference Page can be found

A quick summary of the documents and projects that have been updated
include the following:

   The Bogon List
   The Text Bogon List, Unaggregated
   The Text Bogon List, Aggregated
   Secure BIND Template
   Secure IOS Template (Cisco)
   Secure BGP Template (Cisco)
   Secure JUNOS Template (Juniper)
   Secure JUNOS BGP Template (Juniper)
   Ingress Prefix Filter Templates, Loose and Strict (Cisco)
   Ingress Prefix Filter Template, Loose and Strict (Juniper)
   Bogon route-server *

   Bogon ( zone

   Bogon prefix monitoring

* All of the bogon peers have received the appropriate BGP prefix

Please feel free to contact Team Cymru with any comments, questions, or

Rob, for Team Cymru.  []
Rob Thomas
ASSERT(coffee != empty);

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