--- 1/draft-ietf-grow-no-more-unallocated-slash8s-02.txt 2011-09-28 22:14:04.810217148 +0200 +++ 2/draft-ietf-grow-no-more-unallocated-slash8s-03.txt 2011-09-28 22:14:04.826215852 +0200 @@ -1,18 +1,18 @@ Network Working Group L. Vegoda Internet-Draft ICANN -Intended status: BCP August 2, 2011 -Expires: February 3, 2012 +Intended status: BCP September 28, 2011 +Expires: March 31, 2012 Time to Remove Filters for Previously Unallocated IPv4 /8s - draft-ietf-grow-no-more-unallocated-slash8s-02 + draft-ietf-grow-no-more-unallocated-slash8s-03 Abstract 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. @@ -29,21 +29,21 @@ Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at http://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." - This Internet-Draft will expire on February 3, 2012. + This Internet-Draft will expire on March 31, 2012. Copyright Notice Copyright (c) 2011 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents @@ -87,21 +87,21 @@ 2. Terminology The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in BCP 14, RFC 2119 [RFC2119]. Bogons are packets sourced from addresses that have not yet been allocated by IANA or the Regional Internet Registries (RIRs), or - addresses reserved for private or special use by RFCs [RFC3871]. + addresses reserved for private or special use by RFCs [RFC5735]. Martians are packets with an altogether bogus (non-registered or ill- formed) Internet address [RFC1208]. Bogons are referred to as "Dark IP" in some circles. 3. Traffic Filtering Options 3.1. No Longer Filtering Based on Address Registration Status Network administrators who implemented filters for unallocated IPv4 /8s did so in the knowledge that those /8s were not a legitimate @@ -202,24 +202,20 @@ March 2010. 7.2. Informative References [RFC1208] Jacobsen, O. and D. Lynch, "Glossary of networking terms", RFC 1208, March 1991. [RFC2544] Bradner, S. and J. McQuaid, "Benchmarking Methodology for Network Interconnect Devices", RFC 2544, March 1999. - [RFC3871] Jones, G., "Operational Security Requirements for Large - Internet Service Provider (ISP) IP Network - Infrastructure", RFC 3871, September 2004. - [RFC5737] Arkko, J., Cotton, M., and L. Vegoda, "IPv4 Address Blocks Reserved for Documentation", RFC 5737, January 2010. Appendix A. Acknowledgments Thanks are owed to Kim Davies, Terry Manderson, Dave Piscitello and Joe Abley for helpful advice on how to focus this document. Thanks also go to Andy Davidson, Philip Smith and Rob Thomas for early reviews and suggestions for improvements to the text and Carlos Pignataro for his support and comments.