The IPv6 Neighbor Discovery Protocol's Router Advertisement
message contains an 8-bit field reserved for single-bit flags.
Several protocols have reserved flags in this field and
others are preparing to reserve a sufficient number of
flags to exhaust the field.
This document defines an option for the Router Advertisement
message that expands the available number of flag bits by
adding an additional 48 flag bits to NDP messages.
Working Group Summary
The working group reviewed the initial version of this document,
accepted it as an IPv6 w.g. document, and did a two week
working group last call on. The current draft resolves
issues raised during the discussion and the working group
This specification has been reviewed by Jari Arkko for the
There are no known implementations of this protocol extension.
No feedback has been received on plans to implement. It is
expected that this option will be implemented by people
implementing the protocols that will use the new flags.