Inicial > Sem categoria > IANA IPv4 allocations and bogon update 177/8 and 181/8

IANA IPv4 allocations and bogon update 177/8 and 181/8

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Greetings Everyone,

The numerous Team Cymru bogon projects have been updated as of 02 JUNE 2010 to
reflect the following IANA allocation made on 02 June 2010:

   177/8  LACNIC            2010-06   ALLOCATED
   181/8  LACNIC            2010-06   ALLOCATED

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 sundry lists, such as the bogon-announce list.
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 you.

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

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


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

  - The Bogon Lists via HTTP
  - The Text Bogon Lists
  - Ingress Prefix Filter Templates, Loose and Strict (Cisco)
  - Bogon route-server for AUTOMATED updates of bogon filters
    - All bogon route-server peers have already received the
      appropriate BGP prefix updates.
* RADb
  - fltr-unallocated fltr-martian fltr-bogons
  - fltr-unallocated fltr-martian fltr-bogons
  - Bogon ( zone
* Monitoring
  - Bogon prefix monitoring
  - Bogus ASN monitoring

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

Thank you for your continued support.

Team Cymru NOC

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