IANA IPv4 allocations and bogon updates: 121/8, 122/8, and 123/8


[ Apologies to those of you who receive this note in multiple forums. ]

Hi, team.

The numerous Team Cymru bogon projects have been updated as of 05 JAN
2006 to reflect the following IANA allocation made on 05 JAN 2006:

    121/8 Jan 06 APNIC (whois.apnic.net)
    122/8 Jan 06 APNIC (whois.apnic.net)
    123/8 Jan 06 APNIC (whois.apnic.net)

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 here:


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

      The Bogon List
      - <http://www.cymru.com/Documents/bogon-list.html>
      The Text Bogon Lists
      - <http://www.cymru.com/Documents/bogon-bn-nonagg.txt>
      - <http://www.cymru.com/Documents/bogon-bn-agg.txt>
      Secure BIND Template
      - <http://www.cymru.com/Documents/secure-bind-template.html>
      Secure IOS Template (Cisco)
      - <http://www.cymru.com/Documents/secure-ios-template.html>
      Secure BGP Template (Cisco)
      - <http://www.cymru.com/Documents/secure-bgp-template.html>
      Secure JUNOS Template (Juniper)
      - <http://www.cymru.com/gillsr/documents/junos-template.htm>
      Secure JUNOS BGP Template (Juniper)
      - <http://www.cymru.com/gillsr/documents/junos-bgp-template.htm>
      Ingress Prefix Filter Templates, Loose and Strict (Cisco)
      - <ftp://ftp-eng.cisco.com/cons/isp/security/Ingress-Prefix-
      Ingress Prefix Filter Template, Loose (Juniper)
      - <http://www.cymru.com/gillsr/documents/junos-isp-prefix-
      Ingress Prefix Filter Template, Strict (Juniper)
      - <http://www.cymru.com/gillsr/documents/junos-isp-prefix-

      Bogon route-server for AUTOMATED updates of bogon filters
      - All bogon route-server peers have already received the
        appropriate BGP prefix updates.
      - <http://www.cymru.com/BGP/bogon-rs.html>

      - <http://www.cymru.com/Bogons/index.html#radb>

      - <http://www.cymru.com/Bogons/index.html#ripe>

      Bogon (bogons.cymru.com) zone
      - <http://www.cymru.com/Bogons/index.html#dns>

      Bogon prefix monitoring
      - <http://www.cymru.com/BGP/robbgp-bogon.html>
      Bogus ASN monitoring
      - <http://www.cymru.com/BGP/asnbogusrep.html>

Please feel free to contact Team Cymru <team-cymru@cymru.com> with
any comments, questions, or concerns.

Thank you for your continued support.

- --
Rob Thomas
Team Cymru
ASSERT(coffee != empty);