[AusNOG] Fwd: [GROW] BCP 171, RFC 6441 on Time to Remove Filters for Previously Unallocated IPv4 /8s
terry at skymesh.net.au
Wed Nov 30 11:31:37 EST 2011
>> A new Request for Comments is now available in online RFC libraries.
>> BCP 171
>> RFC 6441
>> Title: Time to Remove Filters for
>> Previously Unallocated IPv4 /8s
>> Author: L. Vegoda
>> Status: Best Current Practice
>> Stream: IETF
>> Date: November 2011
>> Mailbox: leo.vegoda at icann.org
>> Pages: 5
>> Characters: 8646
>> See Also: BCP0171
>> I-D Tag: draft-ietf-grow-no-more-unallocated-slash8s-04.txt
>> URL: http://www.rfc-editor.org/rfc/rfc6441.txt
>> It has been common for network administrators to filter IP traffic
>> from and BGP prefixes of unallocated IPv4 address space. Now that
>> there are no longer any unallocated IPv4 /8s, this practise is more
>> complicated, fragile, and expensive. Network administrators are
>> advised to remove filters based on the registration status of the
>> address space.
>> This document explains why any remaining packet and BGP prefix
>> filters for unallocated IPv4 /8s should now be removed on border
>> routers and documents those IPv4 unicast prefixes that should not be
>> routed across the public Internet. This memo documents an Internet
>> Best Current Practice.
>> This document is a product of the Global Routing Operations Working Group of the IETF.
>> BCP: This document specifies an Internet Best Current Practices for the
>> Internet Community, and requests discussion and suggestions for
>> improvements. Distribution of this memo is unlimited.
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