Issues with IP Address Sharing

Metadata

Publisher: IETF
Doc Type: Informational
Pages: 29
Abstract: The completion of IPv4 address allocations from IANA and the Regional Internet Registries (RIRs) is causing service providers around the world to question how they will continue providing IPv4 connectivity service to their subscribers when there are no longer sufficient IPv4 addresses to allocate them one per subscriber. Several possible solutions to this problem are now emerging based around the idea of shared IPv4 addressing. These solutions give rise to a number of issues, and this memo identifies those common to all such address sharing approaches. Such issues include application failures, additional service monitoring complexity, new security vulnerabilities, and so on. Solution-specific discussions are out of scope. Deploying IPv6 is the only perennial way to ease pressure on the public IPv4 address pool without the need for address sharing mechanisms that give rise to the issues identified herein. This document is not an Internet Standards Track specification; it is published for informational purposes.
Publication Date: 2011-06-01
Status Note: Informational
DOI: 10.17487/RFC6269
Link: https://doi.org/10.17487/RFC6269
Author(s): Mat Ford
Mohamed Boucadair
Alain Durand
Pierre Levis
Phil Roberts
Keyword(s): IPv4 Address Exhaustion, Sharing Issues

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Bibliographic Reference(s)

Microsoft, "Windows Logo Program Requirements and Policies", 2006, < http://www.microsoft.com/whdc/winlogo/ hwrequirements/default.mspx >. EXTERNAL
Cheshire, S., "NAT Port Mapping Protocol (NAT-PMP)" , Work in Progress, April 2008. EXTERNAL
Haverinen, H., Siren, J., and P. Eronen, "Energy Consumption of Always-On Applications in WCDMA Networks", April 2007, < http://research.nokia.com/node/5597 >. EXTERNAL
Bush, R., "The A+P Approach to the IPv4 Address Shortage", Work in Progress, February 2011. EXTERNAL
Perreault, S., Yamagata, I., Miyakawa, S., Nakagawa, A., and H. Ashida, "Common requirements for IP address sharing schemes", Work in Progress, March 2011. EXTERNAL
Boucadair, M., Levis, P., Bajko, G., and T. Savolainen, "IPv4 Connectivity Access in the Context of IPv4 Address Exhaustion: Port Range based IP Architecture", Work in Progress, July 2009. EXTERNAL
Despres, R., "Scalable Multihoming across IPv6 Local- Address Routing Zones Global-Prefix/Local-Address Stateless Address Mapping (SAM)", July 2009. EXTERNAL
UPnP Forum, "Universal Plug and Play (UPnP) Internet Gateway Device (IGD) V 2.0", December 2010, < http://upnp.org/specs/gw/igd2/ >. EXTERNAL
Alcock, S., "Research into the Viability of Service- Provider NAT", 2008, < http://www.wand.net.nz/~salcock/ someisp/flow_counting/result_page.html >. EXTERNAL
Gont, F. and P. Srisuresh, "Security implications of Network Address Translators (NATs)", Work in Progress, October 2009. EXTERNAL
Haddad, W. and C. Perkins, "A Note on NAT64 Interaction with Mobile IPv6", Work in Progress, March 2011. EXTERNAL
Yamagata, I., Shirasaki, Y., Nakagawa, A., Yamaguchi, J., and H. Ashida, "NAT444", January 2011. EXTERNAL
ICANN, "Available Pool of Unallocated IPv4 Internet Addresses Now Completely Emptied", February 2011, < http://icann.org/en/news/releases/ release-03feb11-en.pdf >. EXTERNAL
Durand, A., Droms, R., Woodyatt, J., and Y. Lee, "Dual- Stack Lite Broadband Deployments Following IPv4 Exhaustion", Work in Progress, May 2011. EXTERNAL
IANA, "Port Numbers", < http://www.iana.org >. EXTERNAL
Wing, D., Ed., Cheshire, S., Boucadair, M., Penno, R., and P. Selkirk, "Port Control Protocol (PCP)", Work in Progress, May 2011. EXTERNAL
IETF RFC 1191 [Active*]
IETF RFC 1337 [Active*]
IETF RFC 1700 [Superseded*]
IETF RFC 1918 [Active*]
IETF RFC 2140 [Superseded*]
IETF RFC 2663 [Active*]
IETF RFC 2782 [Active*]
IETF RFC 2827 [Active*]
IETF RFC 2993 [Active*]
IETF RFC 3056 [Active*]
IETF RFC 3232 [Active*]
IETF RFC 3715 [Active*]
IETF RFC 3947 [Active*]
RFC4380 — RFC4380 EXTERNAL
RFC4787 — RFC4787 EXTERNAL
RFC5135 — RFC5135 EXTERNAL
RFC5508 — RFC5508 EXTERNAL
RFC5961 — RFC5961 EXTERNAL
IETF RFC 5996 [Superseded*]
RFC6056 — RFC6056 EXTERNAL
RFC6145 — RFC6145 EXTERNAL
RFC6146 — RFC6146 EXTERNAL

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Referenced By

IETF RFC 6302 [Active*]
IETF RFC 6555 [Superseded*]
IETF RFC 6973 [Active*]