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IETF RFC 7021
[ACTIVE]

Assessing the Impact of Carrier-Grade NAT on Network Applications

Metadata

Publisher
IETF
Doc Type
Informational
Pages
29
Abstract
NAT444 is an IPv4 extension technology being considered by Service Providers as a means to continue offering IPv4 service to customers while transitioning to IPv6. This technology adds an extra Carrier- Grade NAT (CGN) in the Service Provider network, often resulting in two NATs. CableLabs, Time Warner Cable, and Rogers Communications independently tested the impacts of NAT444 on many popular Internet services using a variety of test scenarios, network topologies, and vendor equipment. This document identifies areas where adding a second layer of NAT disrupts the communication channel for common Internet applications. This document was updated to include the Dual-Stack Lite (DS-Lite) impacts also.
Publication Date
2013-09-01
Status Note
Informational
DOI
10.17487/RFC7021
Link
https://doi.org/10.17487/RFC7021
Author(s)
Chris Donley
Lee Howard
Victor Kuarsingh
John Berg
Jinesh Doshi
Keyword(s)
CGN, NAT444, DS-Lite, IPv4, NAT, IPv6
Latest version of IETF RFC 7021

Document Versions — IETF RFC 7021

  • ▶ IETF RFC 7021 (2013-09-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

Bibliographic Reference(s)

  • Sivakumar, S. and R. Penno, "IPFIX Information Elements for logging NAT Events", Work in Progress, August 2013. EXTERNAL
  • Tsou, T., Liu, W., Perreault, S., Penno, R., and M. Chen, "Stateless IPv4 Network Address Translation", Work in Progress, October 2012. EXTERNAL
  • Donley, C., Grundemann, C., Sarawat, V., Sundaresan, K., and O. Vautrin, "Deterministic Address Mapping to Reduce Logging in Carrier Grade NAT Deployments", Work in Progress, July 2013. EXTERNAL
  • Yamagata, I., Shirasaki, Y., Nakagawa, A., Yamaguchi, J., and H. Ashida, "NAT444", Work in Progress, July 2012. EXTERNAL
  • IETF RFC 1918 [Active*]
  • IETF RFC 3056 [Active*]
  • IETF RFC 4380 [Active*]
  • IETF RFC 4689 [Active*]
  • IETF RFC 6264 [Active*]
  • IETF RFC 6269 [Active*]
  • IETF RFC 6333 [Active*]
  • IETF RFC 6887 [Active*]
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IETF RFC 7021, Assessing the Impact of Carrier-Grade NAT on Network Applications. Available at https://doi.org/10.17487/RFC7021
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IETF RFC 7021, Assessing the Impact of Carrier-Grade NAT on Network Applications. Available at https://doi.org/10.17487/RFC7021

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IETF RFC 7021, Assessing the Impact of Carrier-Grade NAT on Network Applications. Available at https://doi.org/10.17487/RFC7021
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<span class="citation"><cite>IETF RFC 7021</cite>, Assessing the Impact of Carrier-Grade NAT on Network Applications. Available at <a href="https://doi.org/10.17487/RFC7021" target="_blank" rel="noopener">https://doi.org/10.17487/RFC7021</a></span>

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IETF RFC 7021, Assessing the Impact of Carrier-Grade NAT on Network Applications
doi: 10.17487/RFC7021
url: https://doi.org/10.17487/RFC7021
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<cite id="bib-rfc7021">IETF RFC 7021</cite>, Assessing the Impact of Carrier-Grade NAT on Network Applications
<span class="doi">10.17487/RFC7021</span>
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