This document specifies DHCPv6 options, termed Softwire46 options,
for the provisioning of Softwire46 Customer Edge (CE) devices.
Softwire46 is a collective term used to refer to architectures based
on the notion of IPv4 Address+Port (A+P) for providing IPv4
connectivity across an IPv6 network.
Working Group Summary
The working group had active discussion on the draft and the current
text of the draft is representative of the consensus of the working
group. This document was a result of merging DHCPv6 options
required for several softwire solutions into a single document and
rationalizing them after consolidating similar options and removing
There is an open source implementation of these options in the recently
released OpenWRT software (the BARRIER BREAKER release). There
are also available implementations of the mechanism specific options
that got merged into this draft.
Suresh Krishnan is the document shepherd. Ted Lemon is the responsible
RFC Editor Note
This document makes frequent use of the term "sub-option", which is incorrect according to RFC 7227, section 9. The correct term is "encapsulated option." Please double-check that all such uses are corrected. Thanks!
This document is one of a set of five softwire documents that should be published with sequential RFC numbers. The numbering should be in the following order: