[apops] Change to minimum portable prefix size on APNIC IPv4 address blo

To: apops at apops dot net
Subject: [apops] Change to minimum portable prefix size on APNIC IPv4 address blocks
From: Srinivas Chendi <sunny at apnic dot net>
Date: Thu, 14 Oct 2010 12:45:42 +1000
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Change to minimum portable prefix size on APNIC IPv4 address blocks
________________________________________________________________________


As a follow up to an informational presentation by the APNIC Secretariat
at the APNIC 30 plenary, "IPv4 Tomorrow?", APNIC is making an
operational change to the minimum portable prefix size for all APNIC
IPv4 ranges.

As APNIC's IPv4 transfer policy permits transfers of /24 blocks and
larger, it is now possible that routable prefixes within a /8 are now
smaller than the minimum allocation size of a /22.

Therefore, the minimum portable prefix size for all APNIC IPv4 /8
address blocks has been changed to a /24. Please note, there has been no
change to the minimum IPv4 allocation size, which remains a /22.

Please update your network configurations, such as router filter sizes
based on the IPv4 address block minimum prefix size, where required.

For more information on the affected /8 blocks, see

	http://www.apnic.net/publications/news/2010/min-prefix

If you have any questions please contact the APNIC Helpdesk at:

	helpdesk at apnic dot net
	

Kind regards,
Sunny

--
Srinivas (Sunny) Chendi                 email:       sunny at apnic dot net
Senior Community Engagement Specialist  sip:    sunny at voip dot apnic dot net
South Asia Liaison Officer              msn:       sunn3 at hotmail dot com
http://www.apnic.net                    ph/fx:    +61 7 3858 3189/99
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