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Status:

PROPOSED STANDARD

Authors:

M. Boucadair
I. Farrer

Stream:

IETF

Source:

softwire (int)

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DOI:  https://doi.org/10.17487/RFC8026

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Abstract

In IPv6-only provider networks, transporting IPv4 packetsencapsulated in IPv6 is a common solution to the problem of IPv4service continuity. A number of differing functional approaches havebeen developed for this, each having their own specificcharacteristics. As these approaches share a similar functionalarchitecture and use the same data plane mechanisms, this memospecifies a DHCPv6 option, whereby a single instance of CustomerPremises Equipment (CPE) can interwork with all of the standardizedand proposed approaches to providing encapsulated IPv4-in-IPv6services by providing a prioritization mechanism.

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.