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Status:

INFORMATIONAL

Authors:

X. Li
C. Bao
M. Chen
H. Zhang
J. Wu

Stream:

IETF

Source:

NON WORKING GROUP

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DOI:  https://doi.org/10.17487/RFC6219

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Abstract

This document presents the China Education and Research Network(CERNET)'s IVI translation design and deployment for the IPv4/IPv6coexistence and transition.

The IVI is a prefix-specific and stateless address mapping mechanismfor "an IPv6 network to the IPv4 Internet" and "the IPv4 Internet toan IPv6 network" scenarios. In the IVI design, subsets of the ISP'sIPv4 addresses are embedded in the ISP's IPv6 addresses, and thehosts using these IPv6 addresses can therefore communicate with theglobal IPv6 Internet directly and can communicate with the globalIPv4 Internet via stateless translators. The communications caneither be IPv6 initiated or IPv4 initiated. The IVI mechanismsupports the end-to-end address transparency and incrementaldeployment. The IVI is an early design deployed in the CERNET as areference for the IETF standard documents on IPv4/IPv6 statelesstranslation. This document is not an Internet Standards Track specification; it is published for informational purposes.

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.