On 21 feb 2008, at 14:31, Rémi Després wrote:
- These addresses would, for example, have FF00::/8 at the
beginning of their IID (no currently specified IPv6 IID begins that
way; randomness on 58 bits is good enough).
You're right, there is currently no way other than a rather non-
obvious use of manual address configuration or DHCPv6 address pool
configuration to arrive at an interface identifier where the U/L bit
is "global" and the group bit is set, i.e., with bits 6 and 7 of the
IID set to 1. This means that there is an untapped range of 62 bits
worth of IIDs that we can still give a new purpose where the address
type can be relatively unambiguously determined from the IID. It would
be a shame to squander that resource without thinking about other uses
first. (Although using only one of the 64 possible ranges of 56 bits
is probably reasonalbe.)
But shouldn't we be having this discussion in 6man?
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